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产品型号NCP303LSN29T1G的概述

NCP303LSN29T1G芯片概述 NCP303LSN29T1G是一款低压线性稳压器(LDO),由ON Semiconductor公司生产。这款芯片能够提供稳定的输出电压,适用于各种电子设备中的电源管理,尤其是在对低噪声和高效率有较高要求的场合。NCP303的设计目标是在保持功耗较低的同时,提供高达300毫安的输出电流,使其适合用于便携式设备、嵌入式系统及其他需要稳定电压的应用中。 详细参数 NCP303LSN29T1G的主要技术参数包括: - 输入电压范围:2.5V至16V - 输出电压:固定为2.9V - 最大输出电流:300mA - 静态电流:典型值为34µA - 负载调节:通常为0.2% - 线性调节能力:输入电压变化时,输出电压的变化很小,通常为0.1% - 工作温度范围:-40°C至+125°C - 封装类型:SOT-23-5 - 输出纹波:低于20mV(典型值) - P...

产品型号NCP303LSN29T1G的Datasheet PDF文件预览

NCP302, NCP303  
Voltage Detector Series  
with Programmable Delay  
The NCP302 and NCP303 series are second generation ultra−low  
current voltage detectors that contain a programmable time delay  
generator. These devices are specifically designed for use as reset  
controllers in portable microprocessor based systems where extended  
battery life is paramount.  
http://onsemi.com  
Each series features a highly accurate undervoltage detector with  
hysteresis and an externally programmable time delay generator. This  
combination of features prevents erratic system reset operation.  
The NCP302 series consists of complementary output devices that  
are available with either an active high or active low reset. The  
NCP303 series has an open drain N−Channel output with an active low  
reset output.  
5
1
THIN SOT23−5/TSOP−5/SC59−5  
CASE 483  
Features  
PIN CONNECTIONS AND  
MARKING DIAGRAM  
Quiescent Current of 0.5 mA Typical  
High Accuracy Undervoltage Threshold of 2.0%  
Externally Programmable Time Delay Generator  
Wide Operating Voltage Range of 0.8 V to 10 V  
Complementary or Open Drain Output  
Active Low or Active High Reset  
Reset  
Output  
1
2
3
5
C
D
Input  
4
N.C.  
Ground  
Pb−Free Packages are Available  
(Top View)  
xxx =Specific Device Code  
Typical Applications  
Y
= Year  
Microprocessor Reset Controller  
Low Battery Detection  
W
= Work Week  
Power Fail Indicator  
Battery Backup Detection  
ORDERING INFORMATION  
See detailed ordering and shipping information in the ordering  
information section on page 22 of this data sheet.  
NCP303LSNxxT1  
NCP302xSNxxT1  
Open Drain Output Configuration  
Complementary Output Configuration  
2
Input  
1
Reset Output  
2
Input  
R
R
D
D
1
Reset  
Output  
*
V
ref  
V
ref  
3
GND  
5
C
D
3
GND  
5
C
D
* Inverter for active low devices.  
* Buffer for active high devices.  
This device contains 28 active transistors.  
Figure 1. Representative Block Diagrams  
Semiconductor Components Industries, LLC, 2005  
1
Publication Order Number:  
January, 2005 − Rev. 14.5  
NCP302/D  
NCP302, NCP303  
MAXIMUM RATINGS  
Rating  
Symbol  
Value  
Unit  
Input Power Supply Voltage (Pin 2)  
Delay Capacitor Pin Voltage (Pin 5)  
V
12  
V
V
in  
V
CD  
−0.3 to V + 0.3  
in  
Output Voltage (Pin 1)  
V
OUT  
V
Complementary, NCP302  
N−Channel Open Drain, NCP303  
−0.3 to V + 0.3  
in  
−0.3 to 12  
Output Current (Pin 1) (Note 2)  
Thermal Resistance Junction−to−Air  
Maximum Junction Temperature  
Operating Ambient Temperature Range  
Storage Temperature Range  
I
70  
mA  
°C/W  
°C  
OUT  
R
250  
q
JA  
T
J
+125  
T
A
−40 to +85  
−55 to +150  
1
°C  
T
°C  
stg  
Moisture Sensitivity Level (T = 235°C)  
MSL  
A
Latchup Performance  
Positive  
Negative  
I
mA  
LATCHUP  
200  
200  
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit  
values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied,  
damage may occur and reliability may be affected.  
1. This device series contains ESD protection and exceeds the following tests:  
Human Body Model 2000 V per MIL−STD−883, Method 3015.  
Machine Model Method 200 V.  
2. The maximum package power dissipation limit must not be exceeded.  
T
* T  
J(max)  
A
P
+
D
R
qJA  
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2
 
NCP302, NCP303  
ELECTRICAL CHARACTERISTICS (For all values T = 25°C, unless otherwise noted.)  
A
Characteristic  
Symbol  
Min  
Typ  
Max  
Unit  
NCP302/3 − 0.9  
Detector Threshold (Pin 2, V Decreasing)  
V
0.882  
0.027  
0.900  
0.045  
0.918  
0.063  
V
V
in  
DET−  
Detector Threshold Hysteresis (Pin 2, V Increasing)  
V
HYS  
in  
Supply Current (Pin 2)  
I
in  
mA  
(V = 0.8 V)  
(V = 2.9 V)  
in  
0.20  
0.45  
0.6  
1.2  
in  
Maximum Operating Voltage (Pin 2)  
Minimum Operating Voltage (Pin 2)  
V
10  
V
V
in(max)  
V
0.55  
0.65  
0.70  
0.80  
in(min)  
(T = −40°C to 85°C)  
A
Reset Output Current (Pin 1, Active Low ‘L’ Suffix Devices)  
Nch Sink Current, NCP302, NCP303  
I
mA  
OUT  
(V  
OUT  
(V  
OUT  
= 0.05V, V = 0.70V)  
0.01  
0.05  
0.05  
0.50  
in  
= 0.50V, V = 0.85V)  
in  
Pch Source Current, NCP302  
(V = 2.4V, V = 4.5V)  
1.0  
6.0  
2.5  
OUT  
in  
Reset Output Current (Pin 1, Active High ‘H’ Suffix Devices)  
Nch Sink Current, NCP302, NCP303  
I
OUT  
mA  
(V  
OUT  
= 0.5 V, V = 1.5 V)  
1.05  
in  
Pch Source Current, NCP302  
(V  
OUT  
(V  
OUT  
= 0.4 V, V = 0.7 V)  
0.011  
0.014  
0.04  
0.08  
in  
= GND, V = 0.8 V)  
in  
C
Delay Pin Threshold Voltage (Pin 5)  
V
TCD  
V
D
(V = 0.99 V)  
in  
0.50  
0.67  
0.84  
Delay Capacitor Pin Sink Current (Pin 5)  
I
mA  
CD  
(V = 0.7 V, V = 0.1V)  
2.0  
10  
120  
300  
in  
CD  
(V = 0.85 V, V = 0.5V)  
in  
CD  
Delay Pullup Resistance (Pin 5)  
R
0.5  
1.0  
2.0  
MW  
D
NCP302/3 − 1.8  
Detector Threshold (Pin 2, V Decreasing)  
V
1.764  
0.054  
1.80  
1.836  
0.126  
V
V
in  
DET−  
Detector Threshold Hysteresis (Pin 2, V Increasing)  
V
0.090  
in  
HYS  
Supply Current (Pin 2)  
I
in  
mA  
(V = 1.7 V)  
(V = 3.8 V)  
in  
0.23  
0.48  
0.7  
1.3  
in  
Maximum Operating Voltage (Pin 2)  
Minimum Operating Voltage (Pin 2)  
V
10  
V
V
in(max)  
V
0.55  
0.65  
0.70  
0.80  
in(min)  
(T = −40°C to 85°C)  
A
Reset Output Current (Pin 1, Active Low ‘L’ Suffix Devices)  
Nch Sink Current, NCP302, NCP303  
I
mA  
OUT  
(V  
OUT  
(V  
OUT  
= 0.05V, V = 0.70V)  
0.01  
1.0  
0.05  
2.0  
in  
= 0.50V, V = 1.5V)  
in  
Pch Source Current, NCP302  
(V = 2.4V, V = 4.5V)  
1.0  
6.3  
6.0  
11  
OUT  
in  
Reset Output Current (Pin 1, Active High ‘H’ Suffix Devices)  
Nch Sink Current, NCP302, NCP303  
I
OUT  
mA  
(V  
OUT  
= 0.5 V, V = 5.0 V)  
in  
Pch Source Current, NCP302  
(V  
OUT  
(V  
OUT  
= 0.4 V, V = 0.7 V)  
0.011  
0.525  
0.04  
0.6  
in  
= GND, V = 1.5 V)  
in  
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3
NCP302, NCP303  
ELECTRICAL CHARACTERISTICS (continued) (For all values T = 25°C, unless otherwise noted.)  
A
Characteristic  
Symbol  
Min  
Typ  
Max  
Unit  
NCP302/3 − 1.8  
C
Delay Pin Threshold Voltage (Pin 5)  
V
TCD  
V
D
(V = 1.98 V)  
in  
0.99  
1.34  
1.68  
Delay Capacitor Pin Sink Current (Pin 5)  
I
mA  
CD  
(V = 0.7 V, V = 0.1V)  
2.0  
200  
120  
1600  
in  
CD  
(V = 1.5 V, V = 0.5V)  
in  
CD  
Delay Pullup Resistance (Pin 5)  
R
0.5  
1.0  
2.0  
MW  
D
NCP302/3 − 2.0  
Detector Threshold (Pin 2, V Decreasing)  
V
1.960  
0.06  
2.00  
0.10  
2.040  
0.14  
V
V
in  
DET−  
Detector Threshold Hysteresis (Pin 2, V Increasing)  
V
HYS  
in  
Supply Current (Pin 2)  
I
in  
mA  
(V = 1.9 V)  
(V = 4.0 V)  
in  
0.23  
0.48  
0.8  
1.3  
in  
Maximum Operating Voltage (Pin 2)  
Minimum Operating Voltage (Pin 2)  
V
10  
V
V
in(max)  
V
0.55  
0.65  
0.70  
0.80  
in(min)  
(T = −40°C to 85°C)  
A
Reset Output Current (Pin 1, Active Low ‘L’ Suffix Devices)  
Nch Sink Current, NCP302, NCP303  
I
mA  
OUT  
(V  
OUT  
(V  
OUT  
= 0.05V, V = 0.70V)  
0.01  
1.0  
0.05  
2.0  
in  
= 0.50V, V = 1.5V)  
in  
Pch Source Current, NCP302  
(V = 2.4V, V = 4.5V)  
1.0  
6.3  
6.0  
11  
OUT  
in  
Reset Output Current (Pin 1, Active High ‘H’ Suffix Devices)  
Nch Sink Current, NCP302, NCP303  
I
OUT  
mA  
(V  
OUT  
= 0.5 V, V = 5.0 V)  
in  
Pch Source Current, NCP302  
(V  
OUT  
(V  
OUT  
= 0.4 V, V = 0.7 V)  
0.011  
0.525  
0.04  
0.6  
in  
= GND, V = 1.5 V)  
in  
C
Delay Pin Threshold Voltage (Pin 5)  
V
TCD  
V
D
(V = 2.2 V)  
in  
1.10  
1.49  
1.87  
Delay Capacitor Pin Sink Current (Pin 5)  
I
mA  
CD  
(V = 0.7 V, V = 0.1V)  
2.0  
200  
120  
1600  
in  
CD  
(V = 1.5 V, V = 0.5V)  
in  
CD  
Delay Pullup Resistance (Pin 5)  
R
0.5  
1.0  
2.0  
MW  
D
NCP302/3− 2.7  
Detector Threshold (Pin 2, V Decreasing)  
V
2.646  
0.081  
2.700  
0.135  
2.754  
0.189  
V
V
in  
DET−  
Detector Threshold Hysteresis (Pin 2, V Increasing)  
V
HYS  
in  
Supply Current (Pin 2)  
I
in  
mA  
(V = 2.6 V)  
(V = 4.7 V)  
in  
0.26  
0.46  
0.8  
1.3  
in  
Maximum Operating Voltage (Pin 2)  
Minimum Operating Voltage (Pin 2)  
V
10  
V
V
in(max)  
V
0.55  
0.65  
0.70  
0.80  
in(min)  
(T = −40°C to 85°C)  
A
Reset Output Current (Pin 1, Active Low ‘L’ Suffix Devices)  
Nch Sink Current, NCP302, NCP303  
I
mA  
OUT  
(V  
OUT  
(V  
OUT  
= 0.05V, V = 0.70V)  
0.01  
1.0  
0.05  
2.0  
in  
= 0.50V, V = 1.5V)  
in  
Pch Source Current, NCP302  
(V = 2.4V, V = 4.5V)  
1.0  
6.0  
OUT  
in  
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4
NCP302, NCP303  
ELECTRICAL CHARACTERISTICS (continued) (For all values T = 25°C, unless otherwise noted.)  
A
Characteristic  
Symbol  
Min  
Typ  
Max  
Unit  
NCP302/3− 2.7  
Reset Output Current (Pin 1, Active High ‘H’ Suffix Devices)  
Nch Sink Current, NCP302, NCP303  
I
mA  
OUT  
(V  
OUT  
= 0.5 V, V = 5.0 V)  
6.3  
11  
in  
Pch Source Current, NCP302  
(V  
OUT  
(V  
OUT  
= 0.4 V, V = 0.7 V)  
0.011  
0.525  
0.04  
0.6  
in  
= GND, V = 1.5 V)  
in  
C
Delay Pin Threshold Voltage (Pin 5)  
V
TCD  
V
D
(V = 2.97 V)  
in  
1.49  
2.01  
2.53  
Delay Capacitor Pin Sink Current (Pin 5)  
I
mA  
CD  
(V = 0.7 V, V = 0.1V)  
2.0  
200  
120  
1600  
in  
CD  
(V = 1.5 V, V = 0.5V)  
in  
CD  
Delay Pullup Resistance (Pin 5)  
R
0.5  
1.0  
2.0  
MW  
D
NCP302/3 − 3.0  
Detector Threshold (Pin 2, V Decreasing)  
V
2.94  
0.09  
3.00  
0.15  
3.06  
0.21  
V
V
in  
DET−  
Detector Threshold Hysteresis (Pin 2, V Increasing)  
V
HYS  
in  
Supply Current (Pin 2)  
I
in  
mA  
(V = 2.87 V)  
(V = 5.0 V)  
in  
0.27  
0.47  
0.9  
1.3  
in  
Maximum Operating Voltage (Pin 2)  
Minimum Operating Voltage (Pin 2)  
V
10  
V
V
in(max)  
V
0.55  
0.65  
0.70  
0.80  
in(min)  
(T = −40°C to 85°C)  
A
Reset Output Current (Pin 1, Active Low ‘L’ Suffix Devices)  
Nch Sink Current, NCP302, NCP303  
I
mA  
mA  
OUT  
(V  
OUT  
(V  
OUT  
= 0.05V, V = 0.70V)  
0.01  
1.0  
0.05  
2.0  
in  
= 0.50V, V = 1.5V)  
in  
Pch Source Current, NCP302  
(V = 2.4V, V = 4.5V)  
1.0  
6.3  
6.0  
11  
OUT  
in  
Reset Output Current (Pin 1, Active High ‘H’ Suffix Devices)  
Nch Sink Current, NCP302, NCP303  
I
OUT  
(V  
OUT  
= 0.5 V, V = 5.0 V)  
in  
Pch Source Current, NCP302  
(V  
OUT  
(V  
OUT  
= 0.4 V, V = 0.7 V)  
0.011  
0.525  
0.04  
0.6  
in  
= GND, V = 1.5 V)  
in  
C
Delay Pin Threshold Voltage (Pin 5)  
V
TCD  
V
D
(V = 3.3 V)  
in  
1.65  
2.23  
2.81  
Delay Capacitor Pin Sink Current (Pin 5)  
I
mA  
CD  
(V = 0.7 V, V = 0.1V)  
2.0  
200  
120  
1600  
in  
CD  
(V = 1.5 V, V = 0.5V)  
in  
CD  
Delay Pullup Resistance (Pin 5)  
R
0.5  
1.0  
2.0  
MW  
D
NCP302/3 − 4.5  
Detector Threshold (Pin 2, V Decreasing)  
V
4.410  
0.135  
4.500  
0.225  
4.590  
0.315  
V
V
in  
DET−  
Detector Threshold Hysteresis (Pin 2, V Increasing)  
V
HYS  
in  
Supply Current (Pin 2)  
I
in  
mA  
(V = 4.34 V)  
(V = 6.5 V)  
in  
0.33  
0.52  
1.0  
1.4  
in  
Maximum Operating Voltage (Pin 2)  
Minimum Operating Voltage (Pin 2)  
V
10  
V
V
in(max)  
V
0.55  
0.65  
0.70  
0.80  
in(min)  
(T = −40°C to 85°C)  
A
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5
NCP302, NCP303  
ELECTRICAL CHARACTERISTICS (continued) (For all values T = 25°C, unless otherwise noted.)  
A
Characteristic  
Symbol  
Min  
Typ  
Max  
Unit  
NCP302/3 − 4.5  
Reset Output Current (Pin 1, Active Low ‘L’ Suffix Devices)  
Nch Sink Current, NCP302, NCP303  
I
mA  
OUT  
(V  
OUT  
(V  
OUT  
= 0.05V, V = 0.70V)  
0.01  
1.0  
0.05  
2.0  
in  
= 0.50V, V = 1.5V)  
in  
Pch Source Current, NCP302  
(V = 5.9V, V = 8.0V)  
1.5  
6.3  
10.5  
11  
OUT  
in  
Reset Output Current (Pin 1, Active High ‘H’ Suffix Devices)  
Nch Sink Current, NCP302, NCP303  
I
mA  
OUT  
(V  
OUT  
= 0.5 V, V = 5.0 V)  
in  
Pch Source Current, NCP302  
(V  
OUT  
(V  
OUT  
= 0.4 V, V = 0.7 V)  
0.011  
0.525  
0.04  
0.6  
in  
= GND, V = 1.5 V)  
in  
C
Delay Pin Threshold Voltage (Pin 5)  
V
TCD  
V
D
(V = 4.95 V)  
in  
2.25  
3.04  
3.83  
Delay Capacitor Pin Sink Current (Pin 5)  
I
mA  
CD  
(V = 0.7 V, V = 0.1V)  
2.0  
200  
120  
1600  
in  
CD  
(V = 1.5 V, V = 0.5V)  
in  
CD  
Delay Pullup Resistance (Pin 5)  
R
0.5  
1.0  
2.0  
MW  
D
NCP302/3 − 4.7  
Detector Threshold (Pin 2, V Decreasing)  
V
4.606  
0.141  
4.70  
4.794  
0.329  
V
V
in  
DET−  
Detector Threshold Hysteresis (Pin 2, V Increasing)  
V
0.235  
in  
HYS  
Supply Current (Pin 2)  
I
in  
mA  
(V = 4.54 V)  
(V = 6.7 V)  
in  
0.34  
0.53  
1.0  
1.4  
in  
Maximum Operating Voltage (Pin 2)  
Minimum Operating Voltage (Pin 2)  
V
10  
V
V
in(max)  
V
0.55  
0.65  
0.70  
0.80  
in(min)  
(T = −40°C to 85°C)  
A
Reset Output Current (Pin 1, Active Low ‘L’ Suffix Devices)  
Nch Sink Current, NCP302, NCP303  
I
mA  
OUT  
(V  
OUT  
(V  
OUT  
= 0.05V, V = 0.70V)  
0.01  
1.0  
0.05  
2.0  
in  
= 0.50V, V = 1.5V)  
in  
Pch Source Current, NCP302  
(V = 5.9V, V = 8.0V)  
1.5  
6.3  
10.5  
11  
OUT  
in  
Reset Output Current (Pin 1, Active High ‘H’ Suffix Devices)  
Nch Sink Current, NCP302, NCP303  
I
OUT  
mA  
(V  
OUT  
= 0.5 V, V = 5.0 V)  
in  
Pch Source Current, NCP302  
(V  
OUT  
(V  
OUT  
= 0.4 V, V = 0.7 V)  
0.011  
0.525  
0.04  
0.6  
in  
= GND, V = 1.5 V)  
in  
C
Delay Pin Threshold Voltage (Pin 5)  
V
TCD  
V
D
(V = 5.17 V)  
in  
2.59  
3.49  
4.40  
Delay Capacitor Pin Sink Current (Pin 5)  
I
mA  
CD  
(V = 0.7 V, V = 0.1V)  
2.0  
200  
120  
1600  
in  
CD  
(V = 1.5 V, V = 0.5V)  
in  
CD  
Delay Pullup Resistance (Pin 5)  
R
0.5  
1.0  
2.0  
MW  
D
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6
NCP302, NCP303  
NCP302L  
NCP303L  
V
DET+  
+ 2.0 V  
V
DET+  
+ 2.0 V  
Input Voltage,  
Pin 2  
0.7 V  
GND  
0.7 V  
GND  
V
+ 2.0 V  
5.0 V  
2.5 V  
GND  
DET+  
V
+ 2.0 V  
2
DET+  
Reset Output  
Voltage, Pin 1  
GND  
t
D1  
t
D2  
t
D1  
t
D2  
NCP302 and NCP303 series are measured with a 10 pF capacitive load. NCP303 has an additional 470 k pullup resistor  
connected from the reset output to +5.0 V. The reset output voltage waveforms are shown for the active low ‘L’ devices. Output  
time delay t and t are dependent upon the delay capacitance. Refer to Figures 12, 13, and 14. The upper detector  
D1  
D2  
threshold, V  
is the sum of the lower detector threshold, V  
plus the input hysteresis, V  
.
DET+  
DET−  
HYS  
Figure 2. Measurement Conditions for tD1 and tD2  
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7
NCP302, NCP303  
Table 1. ELECTRICAL CHARACTERISTIC TABLE FOR 0.9 − 4.9 V  
Pch  
Source  
Current  
Supply Current  
Nch Sink Current  
Low High  
Detector Threshold  
Hysteresis  
V
Low  
V
in  
High  
V
in  
V
in  
NCP302 Series  
Detector Threshold  
in  
I
I
I
I
I
in  
in  
OUT  
(3)  
OUT  
(4)  
OUT  
(5)  
(1)  
(2)  
(mA)  
(mA)  
Typ  
0.5  
(mA)  
(mA)  
(mA)  
V
DET−  
(V)  
V
HYS  
(V)  
Part Number  
Min  
Typ  
Max  
Min  
Typ  
Max  
Typ  
0.3  
Typ  
Typ  
Typ  
NCP302LSN09T1  
NCP302LSN10T1  
NCP302LSN11T1  
NCP302LSN12T1  
NCP302LSN13T1  
NCP302LSN14T1  
NCP302LSN15T1  
NCP302LSN16T1  
NCP302LSN17T1  
NCP302LSN18T1  
NCP302LSN19T1  
NCP302LSN20T1  
NCP302LSN21T1  
NCP302LSN22T1  
NCP302LSN23T1  
NCP302LSN24T1  
NCP302LSN25T1  
NCP302LSN26T1  
NCP302LSN27T1  
NCP302LSN28T1  
NCP302LSN29T1  
NCP302LSN30T1  
NCP302LSN31T1  
NCP302LSN32T1  
NCP302LSN33T1  
NCP302LSN34T1  
NCP302LSN35T1  
NCP302LSN36T1  
NCP302LSN37T1  
NCP302LSN38T1  
NCP302LSN39T1  
NCP302LSN40T1  
NCP302LSN41T1  
NCP302LSN42T1  
NCP302LSN43T1  
NCP302LSN44T1  
NCP302LSN45T1  
NCP302LSN46T1  
NCP302LSN47T1  
NCP302LSN48T1  
NCP302LSN49T1  
0.882  
0.980  
1.078  
1.176  
1.274  
1.372  
1.470  
1.568  
1.666  
1.764  
1.862  
1.960  
2.058  
2.156  
2.254  
2.352  
2.450  
2.548  
2.646  
2.744  
2.842  
2.940  
3.038  
3.136  
3.234  
3.332  
3.430  
3.528  
3.626  
3.724  
3.822  
3.920  
4.018  
4.116  
4.214  
4.312  
4.410  
4.508  
4.606  
4.704  
4.802  
0.9  
1.0  
1.1  
1.2  
1.3  
1.4  
1.5  
1.6  
1.7  
1.8  
1.9  
2.0  
2.1  
2.2  
2.3  
2.4  
2.5  
2.6  
2.7  
2.8  
2.9  
3.0  
3.1  
3.2  
3.3  
3.4  
3.5  
3.6  
3.7  
3.8  
3.9  
4.0  
4.1  
4.2  
4.3  
4.4  
4.5  
4.6  
4.7  
4.8  
4.9  
0.918 0.027 0.045 0.063  
1.020 0.030 0.050 0.070  
1.122 0.033 0.055 0.077  
1.224 0.036 0.060 0.084  
1.326 0.039 0.065 0.091  
1.428 0.042 0.070 0.098  
1.530 0.045 0.075 0.105  
1.632 0.048 0.080 0.112  
1.734 0.051 0.085 0.119  
1.836 0.054 0.090 0.126  
1.938 0.057 0.095 0.133  
2.040 0.060 0.100 0.140  
2.142 0.063 0.105 0.147  
2.244 0.066 0.110 0.154  
2.346 0.069 0.115 0.161  
2.448 0.072 0.120 0.168  
2.550 0.075 0.125 0.175  
2.652 0.078 0.130 0.182  
2.754 0.081 0.135 0.189  
2.856 0.084 0.140 0.196  
2.958 0.087 0.145 0.203  
3.060 0.090 0.150 0.210  
3.162 0.093 0.155 0.217  
3.264 0.096 0.160 0.224  
3.366 0.099 0.165 0.231  
3.468 0.102 0.170 0.238  
3.570 0.105 0.175 0.245  
3.672 0.108 0.180 0.252  
3.774 0.111 0.185 0.259  
3.876 0.114 0.190 0.266  
3.978 0.117 0.195 0.273  
4.080 0.120 0.200 0.280  
4.182 0.123 0.205 0.287  
4.284 0.126 0.210 0.294  
4.386 0.129 0.215 0.301  
4.488 0.132 0.220 0.308  
4.590 0.135 0.225 0.315  
4.692 0.138 0.230 0.322  
4.794 0.141 0.235 0.329  
4.896 0.144 0.240 0.336  
4.998 0.147 0.245 0.343  
0.05  
0.5  
2.0  
1.0  
2.0  
0.4  
0.6  
3.0  
3. Condition 1: 0.9 — 2.9 V, V = V  
− 0.10 V; 3.0 — 3.9 V, V = V  
− 0.13 V; 4.0 — 4.9 V, V = V  
− 0.16 V  
in  
DET−  
in  
DET−  
in  
DET−  
4. Condition 2: 0.9 — 4.9 V, V = V  
+ 2.0 V  
in  
DET−  
5. Condition 3: 0.9 — 4.9 V, V = 0.7 V, V  
= 0.05 V, Active Low ‘L’ Suffix Devices  
in  
OUT  
6. Condition 4: 0.9 — 1.0 V, V = 0.85 V, V  
= 0.5 V; 1.1 — 1.5 V, V = 1.0 V, V  
= 0.5 V; 1.6 — 4.9 V, V = 1.5 V, V = 0.5 V,  
OUT  
in  
OUT  
in  
OUT  
in  
Condition 4: Active Low ‘L’ Suffix Devices  
7. Condition 5: 0.9 — 3.9 V, V = 4.5 V, V  
= 2.4 V; 4.0 — 4.9 V, V = 8.0 V, V  
= 5.9 V, Active Low ‘L’ Suffix Devices  
in  
OUT  
in  
OUT  
http://onsemi.com  
8
 
NCP302, NCP303  
Table 2. ELECTRICAL CHARACTERISTIC TABLE FOR 0.9 − 4.9 V  
Nch  
Sink  
Current  
Supply Current  
Pch Source Current  
Low High  
Detector Threshold  
Hysteresis  
V
Low  
V
in  
High  
V
in  
V
in  
NCP302 Series  
Detector Threshold  
in  
I
I
I
I
I
in  
in  
OUT  
(3)  
OUT  
(4)  
OUT  
(5)  
(1)  
(2)  
(mA)  
(mA)  
Typ  
0.5  
(mA)  
(mA)  
(mA)  
V
DET−  
(V)  
V
HYS  
(V)  
Part Number  
Min  
Typ  
Max  
Min  
Typ  
Max  
Typ  
0.3  
Typ  
Typ  
Typ  
NCP302HSN09T1  
NCP302HSN10T1  
NCP302HSN11T1  
NCP302HSN12T1  
NCP302HSN13T1  
NCP302HSN14T1  
NCP302HSN15T1  
NCP302HSN16T1  
NCP302HSN17T1  
NCP302HSN18T1  
NCP302HSN19T1  
NCP302HSN20T1  
NCP302HSN21T1  
NCP302HSN22T1  
NCP302HSN23T1  
NCP302HSN24T1  
NCP302HSN25T1  
NCP302HSN26T1  
NCP302HSN27T1  
NCP302HSN28T1  
NCP302HSN29T1  
NCP302HSN30T1  
NCP302HSN31T1  
NCP302HSN32T1  
NCP302HSN33T1  
NCP302HSN34T1  
NCP302HSN35T1  
NCP302HSN36T1  
NCP302HSN37T1  
NCP302HSN38T1  
NCP302HSN39T1  
NCP302HSN40T1  
NCP302HSN41T1  
NCP302HSN42T1  
NCP302HSN43T1  
NCP302HSN44T1  
NCP302HSN45T1  
NCP302HSN46T1  
NCP302HSN47T1  
NCP302HSN48T1  
NCP302HSN49T1  
0.882  
0.980  
1.078  
1.176  
1.274  
1.372  
1.470  
1.568  
1.666  
1.764  
1.862  
1.960  
2.058  
2.156  
2.254  
2.352  
2.450  
2.548  
2.646  
2.744  
2.842  
2.940  
3.038  
3.136  
3.234  
3.332  
3.430  
3.528  
3.626  
3.724  
3.822  
3.920  
4.018  
4.116  
4.214  
4.312  
4.410  
4.508  
4.606  
4.704  
4.802  
0.9  
1.0  
1.1  
1.2  
1.3  
1.4  
1.5  
1.6  
1.7  
1.8  
1.9  
2.0  
2.1  
2.2  
2.3  
2.4  
2.5  
2.6  
2.7  
2.8  
2.9  
3.0  
3.1  
3.2  
3.3  
3.4  
3.5  
3.6  
3.7  
3.8  
3.9  
4.0  
4.1  
4.2  
4.3  
4.4  
4.5  
4.6  
4.7  
4.8  
4.9  
0.918 0.027 0.045 0.063  
1.020 0.030 0.050 0.070  
1.122 0.033 0.055 0.077  
1.224 0.036 0.060 0.084  
1.326 0.039 0.065 0.091  
1.428 0.042 0.070 0.098  
1.530 0.045 0.075 0.105  
1.632 0.048 0.080 0.112  
1.734 0.051 0.085 0.119  
1.836 0.054 0.090 0.126  
1.938 0.057 0.095 0.133  
2.040 0.060 0.100 0.140  
2.142 0.063 0.105 0.147  
2.244 0.066 0.110 0.154  
2.346 0.069 0.115 0.161  
2.448 0.072 0.120 0.168  
2.550 0.075 0.125 0.175  
2.652 0.078 0.130 0.182  
2.754 0.081 0.135 0.189  
2.856 0.084 0.140 0.196  
2.958 0.087 0.145 0.203  
3.060 0.090 0.150 0.210  
3.162 0.093 0.155 0.217  
3.264 0.096 0.160 0.224  
3.366 0.099 0.165 0.231  
3.468 0.102 0.170 0.238  
3.570 0.105 0.175 0.245  
3.672 0.108 0.180 0.252  
3.774 0.111 0.185 0.259  
3.876 0.114 0.190 0.266  
3.978 0.117 0.195 0.273  
4.080 0.120 0.200 0.280  
4.182 0.123 0.205 0.287  
4.284 0.126 0.210 0.294  
4.386 0.129 0.215 0.301  
4.488 0.132 0.220 0.308  
4.590 0.135 0.225 0.315  
4.692 0.138 0.230 0.322  
4.794 0.141 0.235 0.329  
4.896 0.144 0.240 0.336  
4.998 0.147 0.245 0.343  
2.5  
0.04  
0.08  
0.18  
0.6  
11  
0.4  
0.6  
8. Condition 1: 0.9 — 2.9 V, V = V  
− 0.10 V; 3.0 — 3.9 V, V = V  
− 0.13 V; 4.0 — 4.9 V, V = V − 0.16 V  
DET−  
in  
DET−  
in  
DET−  
in  
9. Condition 2: 0.9 — 4.9 V, V = V  
+ 2.0 V  
in  
DET−  
10.Condition 3: 0.9 — 1.4 V, V = 1.5 V, V  
= 0.5 V; 1.5 — 4.9 V, V = 5.0 V, V  
= 0.4 V, Active High ‘H’ Suffix Devices  
= 0.5 V, Active High ‘H’ Suffix Devices  
in  
OUT  
OUT  
OUT  
in  
OUT  
11. Condition 4: 0.9 — 4.9 V, V = 0.7 V, V  
in  
12.Condition 5: 0.9 — 1.0 V, V = 0.8 V, V  
= GND; 1.1 — 1.5 V, V = 1.0 V, V  
= GND; 1.6 — 4.9 V, V = 1.5 V, V  
= GND,  
in  
in  
OUT  
in  
OUT  
Active High ‘H’ Suffix Devices  
http://onsemi.com  
9
NCP302, NCP303  
Table 3. ELECTRICAL CHARACTERISTIC TABLE FOR 0.9 − 4.9 V  
Supply Current  
Nch Sink Current  
Low High  
Detector Threshold  
Hysteresis  
V
Low  
V
in  
High  
V
in  
V
in  
NCP303 Series  
Detector Threshold  
in  
I
I
I
I
in  
in  
OUT  
(3)  
OUT  
(4)  
(1)  
(2)  
(mA)  
(mA)  
Typ  
0.5  
(mA)  
(mA)  
V
DET−  
(V)  
V
HYS  
(V)  
Part Number  
Min  
Typ  
Max  
Min  
Typ  
Max  
Typ  
0.3  
Typ  
Typ  
NCP303LSN09T1  
NCP303LSN10T1  
NCP303LSN11T1  
NCP303LSN12T1  
NCP303LSN13T1  
NCP303LSN14T1  
NCP303LSN15T1  
NCP303LSN16T1  
NCP303LSN17T1  
NCP303LSN18T1  
NCP303LSN19T1  
NCP303LSN20T1  
NCP303LSN21T1  
NCP303LSN22T1  
NCP303LSN23T1  
NCP303LSN24T1  
NCP303LSN25T1  
NCP303LSN26T1  
NCP303LSN27T1  
NCP303LSN28T1  
NCP303LSN29T1  
NCP303LSN30T1  
NCP303LSN31T1  
NCP303LSN32T1  
NCP303LSN33T1  
NCP303LSN34T1  
NCP303LSN35T1  
NCP303LSN36T1  
NCP303LSN37T1  
NCP303LSN38T1  
NCP303LSN39T1  
NCP303LSN40T1  
NCP303LSN41T1  
NCP303LSN42T1  
NCP303LSN43T1  
NCP303LSN44T1  
NCP303LSN45T1  
NCP303LSN46T1  
NCP303LSN47T1  
NCP303LSN48T1  
NCP303LSN49T1  
0.882  
0.980  
1.078  
1.176  
1.274  
1.372  
1.470  
1.568  
1.666  
1.764  
1.862  
1.960  
2.058  
2.156  
2.254  
2.352  
2.450  
2.548  
2.646  
2.744  
2.842  
2.940  
3.038  
3.136  
3.234  
3.332  
3.430  
3.528  
3.626  
3.724  
3.822  
3.920  
4.018  
4.116  
4.214  
4.312  
4.410  
4.508  
4.606  
4.704  
4.802  
0.9  
1.0  
1.1  
1.2  
1.3  
1.4  
1.5  
1.6  
1.7  
1.8  
1.9  
2.0  
2.1  
2.2  
2.3  
2.4  
2.5  
2.6  
2.7  
2.8  
2.9  
3.0  
3.1  
3.2  
3.3  
3.4  
3.5  
3.6  
3.7  
3.8  
3.9  
4.0  
4.1  
4.2  
4.3  
4.4  
4.5  
4.6  
4.7  
4.8  
4.9  
0.918  
1.020  
1.122  
1.224  
1.326  
1.428  
1.530  
1.632  
1.734  
1.836  
1.938  
2.040  
2.142  
2.244  
2.346  
2.448  
2.550  
2.652  
2.754  
2.856  
2.958  
3.060  
3.162  
3.264  
3.366  
3.468  
3.570  
3.672  
3.774  
3.876  
3.978  
4.080  
4.182  
4.284  
4.386  
4.488  
4.590  
4.692  
4.794  
4.896  
4.998  
0.027  
0.030  
0.033  
0.036  
0.039  
0.042  
0.045  
0.048  
0.051  
0.054  
0.057  
0.060  
0.063  
0.066  
0.069  
0.072  
0.075  
0.078  
0.081  
0.084  
0.087  
0.090  
0.093  
0.096  
0.099  
0.102  
0.105  
0.108  
0.111  
0.114  
0.117  
0.120  
0.123  
0.126  
0.129  
0.132  
0.135  
0.138  
0.141  
0.144  
0.147  
0.045  
0.050  
0.055  
0.060  
0.065  
0.070  
0.075  
0.080  
0.085  
0.090  
0.095  
0.100  
0.105  
0.110  
0.115  
0.120  
0.125  
0.130  
0.135  
0.140  
0.145  
0.150  
0.155  
0.160  
0.165  
0.170  
0.175  
0.180  
0.185  
0.190  
0.195  
0.200  
0.205  
0.210  
0.215  
0.220  
0.225  
0.230  
0.235  
0.240  
0.245  
0.063  
0.070  
0.077  
0.084  
0.091  
0.098  
0.105  
0.112  
0.119  
0.126  
0.133  
0.140  
0.147  
0.154  
0.161  
0.168  
0.175  
0.182  
0.189  
0.196  
0.203  
0.210  
0.217  
0.224  
0.231  
0.238  
0.245  
0.252  
0.259  
0.266  
0.273  
0.280  
0.287  
0.294  
0.301  
0.308  
0.315  
0.322  
0.329  
0.336  
0.343  
0.05  
0.5  
1.0  
2.0  
0.4  
0.6  
13.Condition 1: 0.9 — 2.9 V, V = V  
− 0.10 V; 3.0 — 3.9 V, V = V  
− 0.13 V; 4.0 — 4.9 V, V = V − 0.16 V  
DET−  
in  
DET−  
in  
DET−  
in  
14.Condition 2: 0.9 — 4.9 V, V = V  
+ 2.0 V  
in  
DET−  
15.Condition 3: 0.9 — 4.9 V, V = 0.7 V, V  
= 0.05 V, Active Low ‘L’ Suffix Devices  
in  
OUT  
16.Condition 4: 0.9 — 1.0 V, V = 0.85 V, V  
= 0.5 V; 1.1 — 1.5 V, V = 1.0 V, V  
= 0.5 V; 1.6 — 4.9 V, V = 1.5 V, V = 0.5 V,  
OUT  
in  
OUT  
in  
OUT  
in  
Condition 4: Active Low ‘L’ Suffix Devices  
http://onsemi.com  
10  
NCP302, NCP303  
3.00  
2.95  
2.90  
2.85  
2.80  
2.75  
2.70  
2.65  
2.60  
0.98  
0.96  
0.94  
0.92  
0.90  
V
V
DET+  
V
V
DET+  
DET−  
DET−  
0.88  
0.86  
−50  
0
75  
−50  
0
75  
−25  
25  
50  
100  
−25  
25  
50  
100  
T , AMBIENT TEMPERATURE (°C)  
A
T , AMBIENT TEMPERATURE (°C)  
A
Figure 3. NCP302/3 Series 0.9 V  
Figure 4. NCP302/3 Series 2.7 V  
Detector Threshold Voltage vs. Temperature  
Detector Threshold Voltage vs. Temperature  
4.9  
4.8  
4.7  
4.6  
4.5  
0.9  
V
in  
= 0.99 V  
0.8  
0.7  
0.6  
0.5  
V
V
DET+  
DET−  
4.4  
4.3  
0.4  
0.3  
−50  
0
75  
−25  
25  
50  
100  
−50  
0
75  
−25  
25  
50  
100  
T , AMBIENT TEMPERATURE (°C)  
A
T , AMBIENT TEMPERATURE (°C)  
A
Figure 5. NCP302/3 Series 4.5 V  
Detector Threshold Voltage vs. Temperature  
Figure 6. NCP302/3 Series 0.9 V  
CD Delay Pin Threshold Voltage vs. Temperature  
2.3  
2.2  
2.1  
2.0  
3.3  
3.2  
3.1  
3.0  
2.9  
V
in  
= 4.95 V  
V
in  
= 2.97 V  
1.9  
1.8  
2.8  
2.7  
−50  
0
75  
−25  
25  
50  
100  
−50  
0
75  
−25  
25  
50  
100  
T , AMBIENT TEMPERATURE (°C)  
A
T , AMBIENT TEMPERATURE (°C)  
A
Figure 7. NCP302/3 Series 2.7 V  
CD Delay Pin Threshold Voltage vs. Temperature  
Figure 8. NCP302/3 Series 4.5 V  
CD Delay Pin Threshold Voltage vs. Temperature  
http://onsemi.com  
11  
NCP302, NCP303  
0.6  
0.5  
0.4  
0.3  
0.2  
0.1  
0
8.0  
7.0  
T = 25°C  
A
T = 25°C  
A
V
= 2.5 V  
in  
V
in  
= 0.85 V  
6.0  
5.0  
4.0  
3.0  
2.0  
1.0  
0
V
= 2.0 V  
in  
V
in  
= 0.7 V  
V
in  
= 1.5 V  
0
0.4  
, DELAY PIN VOLTAGE (V)  
1.0  
0
1.0  
, DELAY PIN VOLTAGE (V)  
2.5  
0.2  
0.6  
0.8  
0.5  
1.5  
2.0  
V
V
CD  
CD  
Figure 9. NCP302/3 Series 0.9 V  
Figure 10. NCP302/3 Series 2.7 V  
CD Delay Pin Sink Current vs. Voltage  
CD Delay Pin Sink Current vs. Voltage  
10000  
18  
16  
T = 25°C  
A
T = 25°C  
A
V
in  
= 4.0 V  
1000  
100  
10  
14  
t
(ms)  
D1  
V
= 3.5 V  
in  
12  
10  
V
= 3.0 V  
in  
8.0  
6.0  
t
(ms)  
D2  
V
in  
= 2.5 V  
4.0  
2.0  
0
1.0  
0.1  
0.0001  
0.01  
1.0  
0.001  
0.1  
0
1.0  
2.5  
, DELAY PIN VOLTAGE (V)  
0.5  
1.5  
2.0  
3.0  
3.5  
4.0  
C , DELAY PIN CAPACITANCE ( mF)  
D
V
CD  
Figure 11. NCP302/3 Series 4.5 V  
CD Delay Pin Sink Current vs. Voltage  
Figure 12. NCP302/3 Series 0.9 V  
Output Time Delay vs. Capacitance  
10000  
10000  
T = 25°C  
A
T = 25°C  
A
1000  
100  
10  
1000  
100  
10  
t
(ms)  
D1  
t
D1  
(ms)  
t
(ms)  
D2  
t
D2  
(ms)  
1.0  
0.1  
1.0  
0.1  
0.0001  
0.01  
1.0  
0.0001  
0.01  
1.0  
0.001  
0.1  
0.001  
0.1  
C , DELAY PIN CAPACITANCE ( mF)  
D
C , DELAY PIN CAPACITANCE ( mF)  
D
Figure 13. NCP302/3 Series 2.7 V  
Output Time Delay vs. Capacitance  
Figure 14. NCP302/3 Series 4.5 V  
Output Time Delay vs. Capacitance  
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12  
 
NCP302, NCP303  
1.0  
0.8  
0.6  
0.4  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0
T = −30°C (303L only)  
A
T = 25°C (303L only)  
A
T = −30°C (303L only)  
A
0.2  
0
T = 85°C (303L only)  
A
T = 25°C (303L only)  
A
T = 85°C (303L only)  
A
0
0.4  
V , INPUT VOLTAGE (V)  
0.8  
1.0  
0
0.2  
0.6  
0.5  
1.5  
2.5  
3.0  
1.0  
2.0  
V , INPUT VOLTAGE (V)  
in  
in  
Figure 15. NCP302L/3L Series 0.9 V  
Reset Output Voltage vs. Input Voltage  
Figure 16. NCP302L/3L Series 2.7 V  
Reset Output Voltage vs. Input Voltage  
7.0  
6.0  
5.0  
4.0  
3.0  
2.0  
1.2  
1.0  
0.8  
0.6  
0.4  
T = 25°C  
A
V
in  
= 0.85 V  
T = −30°C (303L only)  
T = 25°C (303L only)  
A
A
V
in  
= 0.7 V  
T = 85°C (303L only)  
A
0.2  
0
1.0  
0
0
2.0  
4.0  
5.0  
6.0  
1.0  
3.0  
0
0.4  
, OUTPUT VOLTAGE (V)  
1.0  
0.2  
0.6  
0.8  
V , INPUT VOLTAGE (V)  
in  
V
OUT  
Figure 17. NCP302L/3L Series 4.5 V  
Reset Output Voltage vs. Input Voltage  
Figure 18. NCP302H/3L Series 0.9 V  
Reset Output Sink Current vs. Output Voltage  
16  
14  
35  
30  
25  
20  
15  
10  
5.0  
0
T = 25°C  
A
T = 25°C  
A
V
= 4.0 V  
in  
V
= 2.5 V  
in  
12  
V
= 3.5 V  
in  
10  
V
= 3.0 V  
8.0  
6.0  
4.0  
in  
V
= 2.0 V  
in  
V
= 2.5 V  
in  
V
in  
= 1.5 V  
V
= 2.0 V  
2.5  
in  
2.0  
0
V
= 1.5 V  
2.0  
in  
0
1.0  
, OUTPUT VOLTAGE (V)  
2.5  
0
0.5  
1.0  
V
1.5  
3.0  
3.5  
4.0  
0.5  
V
1.5  
2.0  
, OUTPUT VOLTAGE (V)  
OUT  
OUT  
Figure 19. NCP302H/3L Series 2.7 V  
Reset Output Sink Current vs. Output Voltage  
Figure 20. NCP302H/3L Series 4.5 V  
Reset Output Sink Current vs. Output Voltage  
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13  
NCP302, NCP303  
1.2  
1.0  
0.8  
0.6  
0.4  
0.2  
0
5.5  
T = 25°C  
A
T = 25°C  
A
2.5  
2.0  
1.5  
1.0  
0.5  
0
0
2.0  
4.0  
6.0  
8.0  
10  
0
4.0  
6.0  
10  
2.0  
8.0  
V , INPUT VOLTAGE (V)  
in  
V , INPUT VOLTAGE (V)  
in  
Figure 21. NCP302/3 Series 0.9 V  
Input Current vs. Input Voltage  
Figure 22. NCP302/3 Series 2.7 V  
Input Current vs. Input Voltage  
11.8  
250  
200  
150  
100  
T = 25°C  
A
2.5  
2.0  
1.5  
C
= 0.1 mF  
D
1.0  
0.5  
0
50  
0
−50  
0
75  
−25  
25  
50  
100  
0
4.0  
6.0  
2.0  
8.0  
10  
V , INPUT VOLTAGE (V)  
in  
T , AMBIENT TEMPERATURE (°C)  
A
Figure 23. NCP302/3 Series 4.5 V  
Input Current vs. Input Voltage  
Figure 24. NCP302/3 Series 0.9 V  
Reset Output Time Delay vs. Temperature  
350  
300  
250  
200  
150  
100  
250  
C
= 0.1 mF  
D
C
= 0.1 mF  
200  
150  
100  
D
50  
0
50  
0
−50  
0
75  
−25  
25  
50  
100  
−50  
0
75  
−25  
25  
50  
100  
T , AMBIENT TEMPERATURE (°C)  
A
T , AMBIENT TEMPERATURE (°C)  
A
Figure 25. NCP302/3 Series 2.7 V  
Reset Output Time Delay vs. Temperature  
Figure 26. NCP302/3 Series 4.5 V  
Reset Output Time Delay vs. Temperature  
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14  
NCP302, NCP303  
9.0  
V
1.6  
1.4  
V
OUT  
= 0.5 V  
= 0.5 V  
OUT  
8.0  
7.0  
6.0  
5.0  
4.0  
3.0  
2.0  
1.0  
0
T = −30°C  
A
T = −30°C  
A
1.2  
1.0  
0.8  
0.6  
0.4  
0.2  
0
T = 25°C  
A
T = 25°C  
A
T = 85°C  
A
T = 85°C  
A
0
1.0  
2.5  
0.5  
1.5  
2.0  
3.0  
0
0.4  
V , INPUT VOLTAGE (V)  
1.0  
0.2  
0.6  
0.8  
V , INPUT VOLTAGE (V)  
in  
in  
Figure 27. NCP302H/3L Series 0.9 V  
Reset Output Sink Current vs. Input Voltage  
Figure 28. NCP302H/3L Series 2.7 V  
Reset Output Sink Current vs. Input Voltage  
0.7  
0.6  
0.5  
0.4  
0.3  
0.2  
0.1  
0
14  
12  
V
OUT  
= 0.5 V  
V
CD  
= 0.5 V  
T = −30°C  
A
T = 25°C  
A
10  
8.0  
6.0  
4.0  
2.0  
0
T = −30°C  
A
T = 25°C  
A
T = 85°C  
A
T = 85°C  
A
0
2.0  
5.0  
1.0  
3.0  
4.0  
0
0.4  
V , INPUT VOLTAGE (V)  
1.0  
0.2  
0.6  
0.8  
V , INPUT VOLTAGE (V)  
in  
in  
Figure 29. NCP302H/3L Series 4.5 V  
Reset Output Sink Current vs. Input Voltage  
Figure 30. NCP302/3 Series 0.9 V  
CD Delay Pin Sink Current vs. Input Voltage  
5.0  
6.0  
5.0  
4.0  
3.0  
2.0  
1.0  
0
V
CD  
= 0.5 V  
V
CD  
= 0.5 V  
T = −30°C  
A
4.0  
3.0  
2.0  
1.0  
0
T = 25°C  
A
T = −30°C  
A
T = 25°C  
A
T = 85°C  
A
T = 85°C  
A
0
1.0  
V , INPUT VOLTAGE (V)  
2.5  
0.5  
1.5  
2.0  
3.0  
0
2.0  
5.0  
1.0  
3.0  
4.0  
V , INPUT VOLTAGE (V)  
in  
in  
Figure 31. NCP302/3 Series 2.7 V  
CD Delay Pin Sink Current vs. Input Voltage  
Figure 32. NCP302/3 Series 4.5 V  
CD Delay Pin Sink Current vs. Input Voltage  
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15  
NCP302, NCP303  
12  
10  
12  
10  
V
OUT  
= V −2.1 V  
in  
V
OUT  
= V −2.1 V  
in  
T = 25°C  
A
T = 25°C  
A
V
−1.5 V  
8.0  
V
−1.5 V  
in  
in  
in  
8.0  
6.0  
4.0  
V
in  
−1.0 V  
6.0  
V
−1.0 V  
−0.5 V  
4.0  
V
in  
−0.5 V  
V
in  
2.0  
0
2.0  
0
0
8.0  
0
4.0  
8.0  
2.0  
4.0  
6.0  
10  
2.0  
6.0  
10  
V , INPUT VOLTAGE (V)  
in  
V , INPUT VOLTAGE (V)  
in  
Figure 33. NCP302L Series 0.9 V  
Reset Output Source Current vs. Input Voltage  
Figure 34. NCP302L Series 2.7 V  
Reset Output Source Current vs. Input Voltage  
2.0  
1.6  
1.2  
0.8  
0.4  
0
12  
10  
V
= V −2.1 V  
in  
OUT  
T = 25°C  
A
V
−1.5 V  
−1.0 V  
in  
in  
8.0  
6.0  
V
4.0  
V
in  
−0.5 V  
2.0  
0
0
4.0  
8.0  
2.0  
6.0  
10  
−50  
0
75  
−25  
25  
50  
100  
V , INPUT VOLTAGE (V)  
in  
T , AMBIENT TEMPERATURE (°C)  
A
Figure 35. NCP302L Series 4.5 V  
Reset Output Source Current vs. Input Voltage  
Figure 36. NCP302/3 Series  
Delay Resistance vs. Temperature  
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16  
NCP302, NCP303  
OPERATING DESCRIPTION  
V will again return to its nominal level and become greater  
in  
than the V  
. The voltage detector will turn off the  
DET+  
The NCP302 and NCP303 series devices consist of a  
precision voltage detector that drives a time delay generator.  
Figures 37 and 38 show a timing diagram and a typical  
N−Channel MOSFET and allow pullup resistor R to charge  
external capacitor C , thus creating a programmable delay  
for releasing the reset signal. When the voltage at Pin 5  
exceeds the inverter/buffer threshold, typically 0.675 V ,  
D
D
application. Initially consider that input voltage V is at a  
in  
in  
nominal level and it is greater than the voltage detector upper  
the reset output will revert back to its original state. The reset  
output time delay versus capacitance is shown in Figures 12  
through 14. The voltage detector and inverter/buffer have  
built−in hysteresis to prevent erratic reset operation.  
Although these device series are specifically designed for  
use as reset controllers in portable microprocessor based  
systems, they offer a cost−effective solution in numerous  
applications where precise voltage monitoring and time  
delay are required. Figures 38 through 45 show various  
application examples.  
threshold (V  
). The voltage at Pin 5 and capacitor C  
DET+  
D
will be at the same level as V , and the reset output (Pin 1)  
will be in the high state for active low devices, or in the low  
state for active high devices. If there is a power interruption  
in  
and V becomes significantly deficient, it will fall below the  
in  
lower detector threshold (V  
delay capacitor C will be immediately discharged by an  
internal N−Channel MOSFET that connects to Pin 5. This  
sequence of events causes the Reset output to be in the low  
state for active low devices, or in the high state for active  
high devices. After completion of the power interruption,  
) and the external time  
DET−  
D
V
in  
Input Voltage, Pin 2  
V
+
DET  
V
DET−  
V
in  
0.675 V  
Capacitor, Pin 5  
in  
V
in  
Reset Output (Active Low), Pin 1  
V
DET−  
0 V  
V
in  
Reset Output (Active High), Pin 1  
V
DET−  
0 V  
t
D2  
Figure 37. Timing Waveforms  
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17  
 
NCP302, NCP303  
APPLICATION CIRCUIT INFORMATION  
V
DD  
V
DD  
2
Input  
*
5
1
NCP302  
Series  
Microprocessor  
Reset  
C
Reset Output  
D
C
D
* Required for  
NCP303  
3
GN  
D
GND  
Figure 38. Microprocessor Reset Circuit  
2.85 V  
2.70 V  
V
in  
< 2.7 ON  
2
Input  
5
1
NCP302  
LSN27T1  
To Additional Circuitry  
C
Reset Output  
D
V
in  
> 2.835 ON  
3
GN  
D
Figure 39. Battery Charge Indicator  
V
supply  
5.0 V  
1.0 V  
0 V  
470 k  
2
Input  
5
1
NCP303  
LSN45T1  
To Additional Circuitry  
C
Reset Output  
D
0.001 mF  
C
D
Missing Pulse  
3
GN  
D
Input  
0 V  
V
in  
[0.675*V  
in  
C
D
Reset Output  
t
D2  
Figure 40. Missing Pulse Detector or Frequency Detector  
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18  
NCP302, NCP303  
V
DD  
R
H
V
DD  
Input  
2
R
L
1
5
NCP303
LSN27T1  
Microprocessor  
C
Reset  
D
Reset Output  
3
GN  
D
GN  
D
Figure 41. Microprocessor Reset Circuit with Additional Hysteresis  
Comparator hysteresis can be increased with the addition of  
Test Data  
resistor R . The hysteresis equations have been simplified and  
H
V
th  
Decreasing  
(V)  
V
th  
Increasing  
(V)  
V
(V)  
R
(W)  
R
L
(kW)  
do not account for the change of input current I as V crosses  
HYS  
H
in  
in  
the comparator threshold. The internal resistance, R is simply  
in  
calculated using I = 0.26 mA at 2.6 V.  
in  
2.70  
2.70  
2.70  
2.70  
2.70  
2.70  
2.70  
2.70  
2.70  
2.70  
2.84  
2.87  
2.88  
2.91  
2.90  
2.94  
2.98  
2.70  
3.04  
3.15  
0.135  
0.17  
0.19  
0.21  
0.20  
0.24  
0.28  
0.27  
0.34  
0.35  
0
10  
V Decreasing:  
in  
100  
100  
100  
220  
220  
220  
470  
470  
470  
6.8  
4.3  
10  
6.8  
4.3  
10  
RH  
Rin  
ǒ
Ǔ
+ ǒ Ǔ  
Vth  
) 1 VDET*  
V Increasing:  
in  
RH  
ǒ
Ǔ
6.8  
4.3  
+ ǒ Ǔ V  
Vth  
) 1  
DET* ) VHYS  
Rin ø RL  
V
HYS  
= V Increasing − V Decreasing  
in in  
5.0 V  
100 k  
Test Data  
(kHz)  
C (mF)  
0.01  
0.1  
f
I (mA)  
Q
OSC  
C
Input  
2
2590  
21.77  
21.97  
22.07  
82 k  
1
5
490  
52  
NCP302
HSN27T1  
C
Reset Output  
D
1.0  
GN  
D
3
Figure 42. Simple Clock Oscillator  
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19  
NCP302, NCP303  
V
supply  
This circuit monitors the current at the load. As  
current flows through the load, a voltage drop with  
respect to ground appears across R where  
Load  
sense  
V
DD  
V
sense  
= I  
load  
* R The following conditions apply:  
sense.  
If:  
I
Then:  
Reset Output = 0 V  
Reset Output = V  
DD  
R
Input  
2
t V  
w (V  
/R  
sense  
Load  
DETsense  
50 k  
I
+V  
DET−  
)/R  
Load  
HYS  
sense  
5
1
NCP303
LSN09T1  
Microcontroller  
C
Reset Output  
D
GND  
GND  
3
Figure 43. Microcontroller Systems Load Sensing  
V
supply  
2
Input  
5
1
NCP303
LSN45T1  
C
Reset  
D
Output  
3
GND  
Input  
2
1
5
NCP303
LSN27T1  
Reset  
C
D
Output  
GND  
3
V
in  
= 1.0 V to 10 V  
2
Input  
1
5
NCP303
LSN18T1  
Reset  
C
D
Output  
3
GND  
A simple voltage monitor can be constructed by connecting several voltage detectors as shown above. Each LED will  
sequentially turn on when the respective voltage detector threshold (V +V ) is exceeded. Note that detector  
DET−  
HYS  
thresholds (V ) that range from 0.9 V to 4.9 V in 100 mV steps can be manufactured.  
DET−  
Figure 44. LED Bar Graph Voltage Monitor  
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20  
NCP302, NCP303  
Power Supply 1  
2
Input  
Reset Output  
To MCU or Logic  
Circuitry  
5
1
NCP303  
LSN18T1  
C
Reset Output  
D
3
GN  
D
Power Supply 2  
2
Input  
1
NCP300  
LSN33T1  
Reset Output  
3
2
GN  
D
Power Supply 3  
Input  
1
NCP300  
LSN45T1  
Reset Output  
3
GN  
D
For monitoring power supplies with a time delay reset, only a single NCP303 with delay capacitor is required.  
Figure 45. Multiple Power Supply Undervoltage  
Supervision with Time Delay Reset  
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21  
NCP302, NCP303  
ORDERING INFORMATION  
Threshold  
Voltage  
Output  
Type  
Device  
Reset  
Marking  
SBO  
Package  
Shipping  
NCP302LSN09T1  
NCP302LSN09T1G  
0.9  
TSOP−5  
0.9  
SBO  
TSOP−5  
(Pb−Free)  
NCP302LSN15T1  
NCP302LSN18T1  
NCP302LSN20T1  
NCP302LSN27T1  
NCP302LSN27T1G  
1.5  
1.8  
2.0  
2.7  
2.7  
SBI  
SBF  
SBD  
SAW  
SAW  
TSOP−5  
TSOP−5  
TSOP−5  
TSOP−5  
TSOP−5  
(Pb−Free)  
NCP302LSN30T1  
NCP302LSN30T1G  
3.0  
3.0  
SAT  
SAT  
TSOP−5  
TSOP−5  
(Pb−Free)  
Active  
Low  
CMOS  
NCP302LSN33T1  
NCP302LSN33T1G  
3.3  
3.3  
SAQ  
SAQ  
TSOP−5  
TSOP−5  
(Pb−Free)  
NCP302LSN38T1  
3.8  
SAK  
TSOP−5  
(Pb−Free)  
NCP302LSN38T1G  
NCP302LSN40T1  
NCP302LSN43T1  
NCP302LSN45T1  
NCP302LSN45T1G  
3.8  
4.0  
4.3  
4.5  
4.5  
SAK  
SAI  
TSOP−5  
TSOP−5  
TSOP−5  
TSOP−5  
3000 / Tape & Reel  
(7 inch Reel)  
SAF  
SAL  
SAL  
TSOP−5  
(Pb−Free)  
NCP302LSN47T1  
4.7  
SAC  
TSOP−5  
NCP302HSN09T1  
NCP302HSN18T1  
0.9  
1.8  
SDO  
SFH  
TSOP−5  
TSOP−5  
NCP302HSN27T1  
NCP302HSN30T1  
NCP302HSN40T1  
NCP302HSN45T1  
NCP302HSN45T1G  
2.7  
3.0  
4.0  
4.5  
4.5  
SDK  
SDI  
TSOP−5  
TSOP−5  
TSOP−5  
TSOP−5  
Active  
High  
CMOS  
SJH  
SDG  
SDG  
TSOP−5  
(Pb−Free)  
NCP303LSN09T1  
NCP303LSN09T1G  
0.9  
0.9  
SDE  
SDE  
TSOP−5  
TSOP−5  
(Pb−Free)  
Open  
Drain  
Active  
Low  
NCP303LSN10T1  
NCP303LSN10T1G  
1.0  
1.0  
SDD  
SDD  
TSOP−5  
TSOP−5  
(Pb−Free)  
NCP303LSN11T1  
1.1  
SDC  
TSOP−5  
NOTE: The ordering information lists standard undervoltage thresholds with active low outputs. Additional active low threshold devices, ranging  
from 0.9 V to 4.9 V in 100 mV increments and NCP302 active high output devices, ranging from 0.9 V to 4.9 V in 100 mV increments can be  
manufactured. Contact your ON Semiconductor representative for availability. The electrical characteristics of these additional devices are  
shown in Tables 1 and 2.  
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging  
Specifications Brochure, BRD8011/D.  
http://onsemi.com  
22  
 
NCP302, NCP303  
ORDERING INFORMATION  
Threshold  
Voltage  
Output  
Type  
Device  
Reset  
Marking  
SDA  
Package  
TSOP−5  
TSOP−5  
TSOP−5  
Shipping  
NCP303LSN13T1  
NCP303LSN14T1  
NCP303LSN15T1  
NCP303LSN15T1G  
1.3  
1.4  
SCZ  
1.5  
SCY  
1.5  
SCY  
TSOP−5  
(Pb−Free)  
NCP303LSN16T1  
NCP303LSN18T1  
NCP303LSN20T1  
NCP303LSN20T1G  
1.6  
1.8  
2.0  
2.0  
SCX  
SCV  
SCT  
SCT  
TSOP−5  
TSOP−5  
TSOP−5  
TSOP−5  
(Pb−Free)  
NCP303LSN22T1  
NCP303LSN23T1  
NCP303LSN24T1  
NCP303LSN25T1  
NCP303LSN25T1G  
2.2  
2.3  
2.4  
2.5  
2.5  
SCR  
SCQ  
SCP  
SCO  
TSOP−5  
TSOP−5  
TSOP−5  
TSOP−5  
TSOP−5  
(Pb−Free)  
SCO  
SCN  
SCN  
SCM  
SCM  
SCL  
SCL  
SCK  
SCK  
SCJ  
SCJ  
NCP303LSN26T1  
NCP303LSN26T1G  
2.6  
2.6  
TSOP−5  
TSOP−5  
(Pb−Free)  
Open  
Drain  
Active  
Low  
3000 / Tape & Reel  
(7 inch Reel)  
NCP303LSN27T1  
NCP303LSN27T1G  
2.7  
2.7  
TSOP−5  
TSOP−5  
(Pb−Free)  
NCP303LSN28T1  
NCP303LSN28T1G  
2.8  
2.8  
TSOP−5  
TSOP−5  
(Pb−Free)  
NCP303LSN29T1  
NCP303LSN29T1G  
2.9  
2.9  
TSOP−5  
TSOP−5  
(Pb−Free)  
NCP303LSN30T1  
NCP303LSN30T1G  
3.0  
3.0  
TSOP−5  
TSOP−5  
(Pb−Free)  
NCP303LSN31T1  
NCP303LSN32T1  
NCP303LSN33T1  
NCP303LSN34T1  
NCP303LSN36T1  
NCP303LSN38T1  
3.1  
3.2  
3.3  
3.4  
3.6  
3.8  
SCI  
SCH  
SCG  
SCF  
SCD  
SCA  
TSOP−5  
TSOP−5  
TSOP−5  
TSOP−5  
TSOP−5  
TSOP−5  
NOTE: The ordering information lists standard undervoltage thresholds with active low outputs. Additional active low threshold devices, ranging  
from 0.9 V to 4.9 V in 100 mV increments and NCP302 active high output devices, ranging from 0.9 V to 4.9 V in 100 mV increments can be  
manufactured. Contact your ON Semiconductor representative for availability. The electrical characteristics of these additional devices are  
shown in Tables 1 and 2.  
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging  
Specifications Brochure, BRD8011/D.  
http://onsemi.com  
23  
NCP302, NCP303  
ORDERING INFORMATION  
Threshold  
Voltage  
Output  
Type  
Device  
Reset  
Marking  
SBY  
Package  
TSOP−5  
TSOP−5  
Shipping  
NCP303LSN40T1  
NCP303LSN42T1  
NCP303LSN42T1G  
4.0  
4.2  
SBW  
4.2  
TSOP−5  
(Pb−Free)  
SBW  
SBU  
SBU  
SBT  
SBT  
SBS  
SBS  
SBR  
NCP303LSN44T1  
NCP303LSN44T1G  
4.4  
4.4  
TSOP−5  
TSOP−5  
(Pb−Free)  
Open  
Drain  
Active  
Low  
3000 / Tape & Reel  
(7 inch Reel)  
NCP303LSN45T1  
NCP303LSN45T1G  
4.5  
4.5  
TSOP−5  
TSOP−5  
(Pb−Free)  
NCP303LSN46T1  
NCP303LSN46T1G  
4.6  
4.6  
TSOP−5  
TSOP−5  
(Pb−Free)  
NCP303LSN47T1  
4.7  
TSOP−5  
NOTE: The ordering information lists standard undervoltage thresholds with active low outputs. Additional active low threshold devices, ranging  
from 0.9 V to 4.9 V in 100 mV increments and NCP302 active high output devices, ranging from 0.9 V to 4.9 V in 100 mV increments can be  
manufactured. Contact your ON Semiconductor representative for availability. The electrical characteristics of these additional devices are  
shown in Tables 1 and 2.  
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging  
Specifications Brochure, BRD8011/D.  
http://onsemi.com  
24  
NCP302, NCP303  
PACKAGE DIMENSIONS  
THIN SOT−23−5/TSOP−5/SC59−5  
CASE 483−02  
ISSUE C  
NOTES:  
1. DIMENSIONING AND TOLERANCING PER  
ANSI Y14.5M, 1982.  
2. CONTROLLING DIMENSION: MILLIMETER.  
3. MAXIMUM LEAD THICKNESS INCLUDES  
LEAD FINISH THICKNESS. MINIMUM LEAD  
THICKNESS IS THE MINIMUM THICKNESS  
OF BASE MATERIAL.  
4. A AND B DIMENSIONS DO NOT INCLUDE  
MOLD FLASH, PROTRUSIONS, OR GATE  
BURRS.  
D
5
4
3
B
C
S
1
2
L
MILLIMETERS  
DIM MIN MAX  
INCHES  
MIN MAX  
G
A
B
C
D
G
H
J
K
L
M
S
2.90  
1.30  
0.90  
0.25  
0.85  
3.10 0.1142 0.1220  
1.70 0.0512 0.0669  
1.10 0.0354 0.0433  
0.50 0.0098 0.0197  
1.05 0.0335 0.0413  
A
J
0.013 0.100 0.0005 0.0040  
0.05 (0.002)  
0.10  
0.20  
1.25  
0
0.26 0.0040 0.0102  
0.60 0.0079 0.0236  
1.55 0.0493 0.0610  
H
M
K
10  
0
10  
_
_
_
_
2.50  
3.00 0.0985 0.1181  
SOLDERING FOOTPRINT*  
1.9  
0.074  
0.95  
0.037  
2.4  
0.094  
1.0  
0.039  
0.7  
0.028  
mm  
inches  
ǒ
Ǔ
SCALE 10:1  
*For additional information on our Pb−Free strategy and soldering  
details, please download the ON Semiconductor Soldering and  
Mounting Techniques Reference Manual, SOLDERRM/D.  
http://onsemi.com  
25  
NCP302, NCP303  
ON Semiconductor and  
are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice  
to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability  
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.  
“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All  
operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights  
nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications  
intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should  
Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates,  
and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death  
associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal  
Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.  
PUBLICATION ORDERING INFORMATION  
LITERATURE FULFILLMENT:  
N. American Technical Support: 800−282−9855 Toll Free  
USA/Canada  
ON Semiconductor Website: http://onsemi.com  
Order Literature: http://www.onsemi.com/litorder  
Literature Distribution Center for ON Semiconductor  
P.O. Box 61312, Phoenix, Arizona 85082−1312 USA  
Phone: 480−829−7710 or 800−344−3860 Toll Free USA/Canada  
Fax: 480−829−7709 or 800−344−3867 Toll Free USA/Canada  
Email: orderlit@onsemi.com  
Japan: ON Semiconductor, Japan Customer Focus Center  
2−9−1 Kamimeguro, Meguro−ku, Tokyo, Japan 153−0051  
Phone: 81−3−5773−3850  
For additional information, please contact your  
local Sales Representative.  
NCP302/D  
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