KA7632/KA7633

2

Absolute Maximum Ratings

Electrical Characteristics(KA7632)

(Refer to test circuit Vin1=6V ,Vin2=10.5V ,Tj = +25

°C, unless otherwise specified)

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(10

µA) if it’s more than

Vo1- 0.2V. The equations of delay time is same as below. Trd = (Cd × 2.5) / 10

µA

2. These parameters, although guaranteed, are not 100% tested in production.

Parameter

Symbol

Value

Unit

Remark

DC Input Voltage

Vin

20

V

-

Disable Input Voltage

Vc

20

V

-

Output Current

Io

0.5

A

-

Power Dissipation

Pd

1.5

W

No Heatsink

Junction Temperature

Tj

+150

°C-

Operating Temperature

Topr

0~+125

°C-

Parameter

Symbol

Conditions

Min.

Typ.

Max.

Unit

Output Voltage 1

Vo1

Io1=10mA

6V<Vin1<14V

5mA<Io1<500mA

3.22

3.14

3.3

3.3

3.38

3.46

V

Output Voltage 2

Vo2

Io2=10mA

10.5V<Vin2<18V

5mA<Io2<500mA

7.84

7.7

8

8

8.16

8.3

V

Dropout Output Voltage 1,2

Vd1,2

Io1,2=500mA

-

-

2.5

V

Line Regulation 1,2

∆Vo 1,2

6V <Vin1<14V

10.5V <Vin2<18V

Io1,2 = 200mA

--

40

80

mV

Load Regulation 1,2

∆Vo 1,2

5mA < Io1< 500mA

5mA <Io2< 500mA

--

70

160

mV

Output Voltage 3

Vo3

Vsys=7V, Io3=100mA

4.97

5.1

5.23

V

Line Regulation 3

∆Vo3

13V< Vin2 <18V, Io3 =100mA

-

-

50

mV

Load Regulation 3

∆Vo3

5mA < Io3 < 1A

-

-

110

mV

Reset Pulse Delay

Trd

Cd=100nF, Note1

-

25

-

ms

Saturation Voltage in Reset

Condition

VrL

I6=5mA

-

-

0.4

V

Leakage Current at Pin 6

IrH

V6=10V

-

-

10

µA

Output Voltage Thermal Drift

STt

0

°C <Tj < +125 °C , Note 2

-

100

-

ppm/

°C

Short Circuit Output Current

Isc1,2

Vin1=6V ,Vin2 =10.5V

-

-

1.6

A

Disable Voltage High

VdisH

Output 2 Active

2

-

V

Disable Voltage Low

VdisL

Output 2 Disabled

-

-

0.8

V

Disable Bias Current

Idis

0V < Vdis < 7V

-100

-

2

µA

Junction Temperature for TSD

Ttsd

Note 2

-

145

-

°C

Quiescent Current

Iq

Io1=10mA, Output2 Disabled

-

-

2

mA

Reset Threshold Voltage

Vr

K=Vo1

K-0.4

K-0.25

K-0.1

V

Reset Threshold Hysteresis

Vrth

Note 1

20

50

100

mA