KA7630/KA7631
Absolute Maximum Ratings
Parameter
Symbol
Vin
Value
20
Unit
V
Remark
DC Input Voltage
Disable Input Voltage
Output Current
-
Vc
20
V
-
Io
0.5
A
-
Power Dissipation
Junction Temperature
Operating Temperature
Pd
1.5
W
°C
°C
No Heatsink
Tj
+150
0 ~ +125
-
-
Topr
Electrical Characteristics(KA7630)
(Refer to test circuit Vin1=7.5V ,Vin2=10.5V ,Tj = +25°C, unless otherwise specified)
Parameter
Symbol
Conditions
Io1 = 10mA
7.5V<Vin1<14V
Min.
Typ.
Max.
Unit
5
4.9
5.1
5.1
5.2
5.3
Output Voltage 1
Vo1
V
5mA < Io1< 500mA
Io2 = 10mA
10.5V < Vin2< 18V
5mA < Io2 < 500mA
7.84
7.7
8
8
8.16
8.3
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 10.5V < 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
10
V
Leakage Current at Pin 6
Output Voltage Thermal Drift
Short Circuit Output Current
Disable Voltage High
IrH
STt
V6 = 10V
-
-
µA
0°C <Tj < +125°C , Note2
Vin1 = 7.5V ,Vin2 = 10.5V
Output 2 Active
Output 2 Disabled
0V < Vdis < 7V
Note 2
-
-
100
ppm/°C
A
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). 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.
2
FAIRCHILD [ FAIRCHILD SEMICONDUCTOR ]
