KA7630/KA7631
Electrical Characteristics(KA7631) (Continued)
(Refer to test circuit Vin1=7.5V ,Vin2=11.5V ,T = +25°C, unless otherwise specified)
j
Parameter
Symbol
Conditions
Io1 = 10mA
7.5V < Vin1 < 14V
5mA < Io1 < 500mA
Min.
Typ.
Max.
Unit
5
4.9
5.1
5.1
5.2
5.3
Output Voltage 1
Vo1
V
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
-
-
-
-
2.5
7.5V < Vin1< 14V
50
80
∆Vo 1,2 11.5V < Vin2< 18V
mV
Io1,2 = 200mA
5mA < Io1< 500mA
∆Vo 1,2
100
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 =13V, Io3 = 100mA
13V < Vin2 <18V, Io3 =100mA
5mA < Io3 < 1A
11.7
12
-
12.3
120
250
-
V
-
-
-
mV
mV
ms
-
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 , Note2
Vin1 = 7.5V ,Vin2 = 11.5V
Output 2 Active
Output 2 Disabled
0V < Vdis < 7V
Note2
-
-
100
Isc1,2
VdisH
VdisL
Idis
-
1.6
2.0
2.0
2
0.8
0.8
-100
-
-
V
Disable Voltage Low
-
V
Disable Bias Current
-
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
Note1
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 internal current source(10µA) if it’s more than
Vo1- 0.2V. The equation 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 ]
