KA7632/KA7633
Electrical Characteristics(KA7633)
(Refer to test circuit Vin1=6V ,Vin2=11.5V ,Tj = +25 °C, unless otherwise specified)
Parameter
Output Voltage 1
Symbol
Conditions
Io1=10mA
6V<Vin1<14V
Min.
Typ.
Max.
Unit
3.22
3.14
3.3
3.3
3.38
3.46
Vo1
V
5mA<Io1<500mA
Io2=10mA
11.5V<Vin2<18V
5mA<Io2<500mA
8.82
8.65
9
9
9.18
9.35
Output Voltage 2
Vo2
V
V
Dropout Output Voltage 1,2
Line Regulation 1,2
Vd1,2
Io1,2=500mA
6V <Vin1<14V
-
-
-
-
2.5
40
80
∆Vo 1,2 11.5V <Vin2<18V
mV
Io1,2 = 200mA
5mA < Io1< 500mA
∆Vo 1,2
70
160
Load Regulation 1,2
-
-
mV
5mA <Io2< 500mA
Output Voltage 3
Line Regulation 3
Load Regulation 3
Reset Pulse Delay
Vo3
∆Vo3
∆Vo3
Trd
Vsys=7V, Io3=100mA
13V< Vin2 <18V, Io3 =100mA
5mA < Io3 < 1A
4.97
5.1
-
5.23
50
V
-
-
-
mV
mV
ms
-
110
-
Cd=100nF, Note1
25
Saturation Voltage in Reset
Condition
VrL
I6=5mA
-
-
0.4
V
Leakage Current at Pin 6
Output Voltage Thermal Drift
Short Circuit Output Current
Disable Voltage High
IrH
STt
V6=10V
-
-
10
-
µA
ppm/°C
A
0 °C <Tj < +125 °C , Note 2
Vin1=6V ,Vin2 =11.5V
Output 2 Active
Output 2 Disabled
0V < Vdis < 7V
Note 2
-
100
Isc1,2
VdisH
VdisL
Idis
-
-
1.6
2
-
V
Disable Voltage Low
-
-
0.8
2
V
Disable Bias Current
-100
-
145
-
µA
°C
Junction Temperature for TSD
Quiescent Current
Ttsd
Iq
-
-
-
Io1=10mA, Output2 Disabled
K=Vo1
2
mA
V
Reset Threshold Voltage
Reset Threshold Hysteresis
Vr
K-0.4 K-0.25 K-0.1
20 50 100
Vrth
Note 1
mA
Notes:
1. To check the reset circuit ,the reset output is low to discharge the delay capacitor(=Cd). if it’s less than Vo1-0.25V. And the
reset output is high when the delay capacitor voltage linearly increased by the interal current source(10µA) if it’s more than
Vo1- 0.2V. The equations of delay time is same as below. Trd = (Cd × 2.5) / 10µA
2. These parameters, although guaranteed, are not 100% tested in production.
3
FAIRCHILD [ FAIRCHILD SEMICONDUCTOR ]
