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产品型号LB11961V的Datasheet PDF文件预览

Ordering number : EN8794B  
Monolithic Digital IC  
Single-Phase Full-Wave  
Fan Motor Driver  
LB11961V  
Overview  
The LB11961V is a single-phase bipolar drive motor driver that easily implements direct PWM motor drive systems with  
excellent efficiency. The LB11961V is optimal for fan motor drive in personal computer power supply systems and CPU  
cooling fan systems.  
Features  
Single-phase full-wave drive (16V, 1.0A transistors are built in)  
Built-in variable speed function controlled by a thermistor input  
The LB11961V can implement quiet, low-vibration variable speed control using externally clocked high side transistor  
direct PWM drive.  
Built-in regenerative diode (Di); only requires a minimal number of external components.  
Built-in HB  
Minimum speed setting pin (allows full-speed mode operation at startup)  
Operates in full-speed mode when the thermistor is removed.  
Built-in lock protection and automatic recovery circuits  
FG (speed detection) and RD (lock detection) outputs  
Built-in thermal shutdown circuit  
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to  
"standard application", intended for the use as general electronics equipment. The products mentioned herein  
shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life,  
aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system,  
safety equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives  
in case of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any  
guarantee thereof. If you should intend to use our products for new introduction or other application different  
from current conditions on the usage of automotive device, communication device, office equipment, industrial  
equipment etc. , please consult with us about usage condition (temperature, operation time etc.) prior to the  
intended use. If there is no consultation or inquiry before the intended use, our customer shall be solely  
responsible for the use.  
Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate  
the performance, characteristics, and functions of the described products in the independent state, and are not  
guarantees of the performance, characteristics, and functions of the described products as mounted in the  
customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent  
device, the customer should always evaluate and test devices mounted in the customer  
's products or  
equipment.  
92111 SY 20110915-S00002/31407 TI PC 20070206-S0006 No.8794-1/7  
LB11961V  
Specifications  
Absolute Maximum Ratings at Ta = 25°C  
Parameter  
Symbol  
Conditions  
Ratings  
Unit  
V
V
maximum output voltage  
V
max  
18  
CC  
CC  
OUT pin maximum output  
current  
I
max  
max  
OUT  
1.0  
A
V
OUT pin output withstand  
voltage  
V
OUT  
18  
HB maximum output current  
IHB max  
VTH max  
VRD/FG max  
IRD/FG max  
Pd max  
10  
mA  
V
VTH input pin voltage  
6
18  
RD/FG output pin output voltage  
RD/FG maximum output current  
Allowable power dissipation  
Operating temperature  
V
mA  
W
10  
When mounted on a circuit board *1  
0.8  
Topr  
°C  
°C  
-30 to +90  
-55 to +150  
Storage temperature  
Tstg  
*1 Specified circuit board : 114.3 × 76.1 × 1.6mm3, glass epoxy.  
Caution 1) Absolute maximum ratings represent the value which cannot be exceeded for any length of time.  
Caution 2) Even when the device is used within the range of absolute maximum ratings, as a result of continuous usage under high temperature, high current,  
high voltage, or drastic temperature change, the reliability of the IC may be degraded. Please contact us for the further details.  
Recommended Operating Conditions at Ta = 25°C  
Parameter  
Symbol  
Conditions  
Ratings  
Unit  
V
V
supply voltage  
V
4.5 to 16  
0 to 9  
CC  
CC  
VTH input level voltage range  
VTH  
V
V
Hall sensor input common-mode  
input voltage range  
VICM  
0.2 to 3  
Electrical Characteristics Unless otherwise specified Ta = 25°C, V  
CC  
= 12V  
Ratings  
typ  
18  
Parameter  
Circuit current  
Symbol  
Conditions  
Unit  
min  
max  
24  
I
I
1
2
Drive mode  
12  
8
mA  
mA  
CC  
Lock protection mode  
I6VREG = 5mA  
IHB = 5mA  
11  
16  
CC  
6VREG voltage  
V6VREG  
VHB  
5.8  
1.10  
3.45  
1.95  
18  
6
6.2  
V
V
HB voltage  
1.25  
3.6  
2.05  
25  
1.40  
3.75  
2.15  
32  
CPWM high-level voltage  
CPWM low-level voltage  
CPWM oscillator frequency  
CT pin high-level voltage  
CT pin low-level voltage  
ICT charge current  
VCRH  
VCRL  
FPWM  
VCTH  
VCTL  
ICT1  
V
V
C = 100pF  
kHz  
V
3.45  
1.55  
1.5  
3.6  
1.7  
2
3.75  
1.85  
2.5  
V
μA  
μA  
ICT discharge current  
ICT2  
0.15  
8.5  
0.2  
10  
0.25  
11.5  
ICT charge/discharge current  
ratio  
RCT  
OUT output low saturation  
voltage  
V
I
I
= 200mA  
= 200mA  
0.2  
0.9  
10  
0.3  
1.1  
20  
V
V
OL  
O
O
OUT output high saturation  
voltage  
V
OH  
Hall sensor input sensitivity  
VHN  
Zero peak value (including offset and  
hysteresis)  
mV  
V
RD/FG output pin low-level  
voltage  
VRDL/FGL  
IRDL/FGL  
VRD/FG = 5mA  
0.2  
0.3  
30  
RD/FG output pin leakage  
current  
VRD/FG = 7V  
μA  
No.8794-2/7  
LB11961V  
Package Dimensions  
unit : mm (typ)  
3178B  
Pd max Ta  
1.0  
0.8  
0.6  
0.4  
0.2  
Specified circuit board : 114.3×76.1×1.6mm3  
glass epoxy board  
5.2  
16  
9
0.38  
1
8
0.65  
0.15  
(0.33)  
0.22  
0
30 20 10  
0
10 20 30 40 50 60 70 80 90 100  
Ambient temperature, Ta – °C  
SANYO : SSOP16(225mil)  
Truth Table  
VTH  
IN-  
IN+  
Low  
High  
Low  
High  
Low  
High  
CPWM  
High  
CT  
OUT1  
High  
Low  
Off  
OUT2  
FG  
Low  
Off  
RD  
On  
Mode  
During rotation drive  
(PWM off)  
High  
Low  
High  
Low  
High  
Low  
Low  
High  
Low  
Off  
Low  
(open)  
Low  
During rotation regeneration  
Low  
Off  
High  
Low  
-
(PWM on)  
Low  
High  
Off  
-
-
Off  
Low  
Off  
Lock protection  
High  
Off  
High  
CPWM – High is the state where CPWM > VTH, and CPWM– Low is the state where CPWM < VTH.  
Open : The LB11961V operates in full-speed mode when the thermistor is removed.  
Pin Assignment  
OUT2  
NC  
16 P-GND  
1
2
3
15  
OUT1  
V
14 S-GND  
CC  
RMI  
VTH  
4
5
6
13  
12 6VREG  
CT  
LB11961V  
CPWM  
11  
10  
IN  
HB  
IN+  
7
8
FG  
RD  
9
SSOP-16  
Top view  
P-GND : Motor system ground  
S-GND : Control system ground  
No.8794-3/7  
LB11961V  
Block Diagram  
RD  
FG  
Thermal  
protection circuit  
V
CC  
Constant  
voltage  
Delay circuit  
6VREG  
HB  
Control  
circuit  
OUT2  
1.3V  
M
Hall  
IN+  
IN−  
Delay circuit  
OUT1  
Amplifier with  
hysteresis  
Charge/discharge  
circuit  
Oscillator  
circuit  
P-GND  
CPWM  
S-GND  
CT  
VTH  
No.8794-4/7  
LB11961V  
Application Circuit Example  
*2  
CM  
H
V
CC  
HB  
*7  
IN−  
*6  
*5  
FG  
RD  
*3  
IN+  
6VREG  
RMI  
*8  
OUT1  
OUT2  
VTH  
CPWM  
*4  
CP = 100pF  
CT  
CT = 0.47μF to 1μF  
P-GND  
*1  
S-GND  
*1.Power supply and ground lines  
P-GND is connected to the motor power supply system and S-GND is connected to the control circuit power supply system.  
These two systems should be formed from separate lines and the control system external components should be connected to  
S-GND.  
*2. Regeneration power supply stabilization capacitor  
The capacitor CM provides power supply stabilization for both PWM drive and kickback absorption. A capacitor with a value of  
over 0.1µF is used for CM. A large capacitor must be used when the coil inductance is large or when the coil resistance is low.  
Since this IC adopts a technique in which switching is performed by the high side transistor and regeneration is handled by the low  
side transistor, the pattern connecting CM to VM and P-GND must be as wide and as short as possible.  
*3.Hall sensor input  
Lines that are as short as possible must be used to prevent noise from entering the system. The Hall sensor input circuit consists of  
a comparator with hysteresis (20mV). We recommend that the Hall sensor input level be at least three times this hysteresis, i.e. at  
least 60mVp-p.  
*4.PWM oscillator frequency setting capacitor  
If a value of 100pF is used for CP, the oscillator frequency will be f = 25kHz, and this will be the basic frequency of the PWM  
signal.  
*5.RD output  
This is an open collector output. It outputs a low level when the motor is turning and a high level when it is stopped. This pin must  
be left open if unused.  
*6.FG output  
This is an open collector output, and a rotation count detection function can be implemented using this FG output, which  
corresponds to the phase switching. This pin must be left open if unused.  
*7.HB pin  
This pin provides a Hall effect sensor bias constant-voltage output of 1.25V.  
*8.RMI pin  
Connect this pin to VTH if unused. Even if unused, the IC is set internally to operate at a 10% drive duty at the voltage  
corresponding to the lowest speed. (The capacitor is used to set up full-speed mode at startup.)  
No.8794-5/7  
LB11961V  
Control Timing Chart  
(V  
× 28%)  
CC  
Thermistor removed  
3.6V  
Internal lowest speed setting voltage  
f = 25kHz (CP=100pF)  
High on duty  
(V  
× 30%)  
RMI voltage  
CPWM  
CC  
2.0V  
Low on duty  
(V  
× 16%)  
CC  
Full speed mode  
0V  
Set minimum  
speed  
PWM control variable speed mode  
High  
temperature  
Low  
temperature  
12V  
V
CC  
0V  
FG  
1. Set minimum speed mode  
A VTH voltage level is generated when the thermistor detects the set temperature. At low temperatures, the fan  
motor turns at the lowest speed, which is set with the RMI pin. The LB11961V compares the CPWM oscillator  
voltage with the RMI pin voltage and sets the duty for the lowest drive state.  
2. High speed low speed mode  
The PWM signal is controlled by comparing the CPWM oscillation voltage that cycles between 1.2V and 3. 8V  
and the VTH voltage.  
When the VTH voltage is lower, the high and low side transistors are turned on, and when the VTH voltage is  
higher, the high side transistor is turned off and the coil current is regenerated through the low side transistor.  
Thus the output on duty increases as the VTH voltage becomes lower, the coil current increases, and the motor  
speed increases.  
Rotation speed feedback is provided by the FG output.  
3. Full-speed mode  
The LB11961V switches to full-speed mode above a certain temperature.  
4. Thermistor removed mode  
If the thermistor is removed, the VTH input voltage will rise. However, the output will go to full drive at 100%  
and the motor will run at full speed.  
No.8794-6/7  
LB11961V  
SANYO Semiconductor Co.,Ltd. assumes no responsibility for equipment failures that result from using  
products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition  
ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor Co.,Ltd.  
products described or contained herein.  
SANYO Semiconductor Co.,Ltd. strives to supply high-quality high-reliability products, however, any and all  
semiconductor products fail or malfunction with some probability. It is possible that these probabilistic failures or  
malfunction could give rise to accidents or events that could endanger human lives, trouble that could give rise  
to smoke or fire, or accidents that could cause damage to other property. When designing equipment, adopt  
safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not  
limited to protective circuits and error prevention circuits for safe design, redundant design, and structural  
design.  
In the event that any or all SANYO Semiconductor Co.,Ltd. products described or contained herein are  
controlled under any of applicable local export control laws and regulations, such products may require the  
export license from the authorities concerned in accordance with the above law.  
No part of this publication may be reproduced or transmitted in any form or by any means, electronic or  
mechanical, including photocopying and recording, or any information storage or retrieval system, or otherwise,  
without the prior written consent of SANYO Semiconductor Co.,Ltd.  
Any and all information described or contained herein are subject to change without notice due to  
product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the  
SANYO Semiconductor Co.,Ltd. product that you intend to use.  
Upon using the technical information or products described herein, neither warranty nor license shall be granted  
with regard to intellectual property rights or any other rights of SANYO Semiconductor Co.,Ltd. or any third  
party. SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's  
intellctual property rights which has resulted from the use of the technical information and products mentioned  
above.  
This catalog provides information as of September, 2011. Specifications and information herein are subject  
to change without notice.  
PS No.8794-7/7  
配单直通车
LB11961V产品参数
型号:LB11961V
生命周期:Active
IHS 制造商:ON SEMICONDUCTOR
零件包装代码:SOIC
包装说明:LSSOP, SSOP16,.25
针数:16
Reach Compliance Code:compliant
ECCN代码:EAR99
HTS代码:8542.39.00.01
风险等级:5.09
Is Samacsys:N
模拟集成电路 - 其他类型:BRUSHLESS DC MOTOR CONTROLLER
JESD-30 代码:R-PDSO-G16
长度:5.2 mm
功能数量:1
端子数量:16
最高工作温度:90 °C
最低工作温度:-30 °C
最大输出电流:1 A
封装主体材料:PLASTIC/EPOXY
封装代码:LSSOP
封装等效代码:SSOP16,.25
封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
电源:12 V
认证状态:Not Qualified
座面最大高度:1.5 mm
子类别:Motion Control Electronics
最大供电电流 (Isup):24 mA
最大供电电压 (Vsup):16 V
最小供电电压 (Vsup):4.5 V
标称供电电压 (Vsup):12 V
表面贴装:YES
技术:BIPOLAR
温度等级:OTHER
端子形式:GULL WING
端子节距:0.65 mm
端子位置:DUAL
宽度:4.4 mm
Base Number Matches:1
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