U840B

TELEFUNKEN Semiconductors

Rev. A2, 03-Feb-97

5 (8)

Absolute Maximum Ratings

Parameters

Symbol

Value

Unit

Supply voltage

t = 60 s

t = 1 h

24

18

V

V

Ambient temperature range

–40 to +100

°C

Storage temperature range

–55 to +125

°C

max. junction temperature

150

°C

Thermal Resistance

Parameters

Symbol

Value

Unit

Junction ambient

DIP8

SO8

110

160

K/W

K/W

Electrical Characteristics

Parameters

Test Conditions / Pin

Symbol

Min.

Typ.

Max.

Unit

Supply

Supply voltage range

9

16

V

Supply current, all push-

buttons open

3

mA

Undervoltage threshold

POR

4

V

Series resistance

180

W

Filter capacitance

47

mF

Internal Z-diode

14

V

INT input (Pin 1)

Protective diode

14

V

Internal capacitance

25

pF

External resistance

1

k

W

Leakage resistance

40

60

k

W

PP input (Pin 4)

Protective diode

14

V

Internal capacitance

13

pF

Threshold

V

Pull-down resistance

120

k

W

WASH-input (Pin 5)

Protective diode

14

V

Internal capacitance

25

pF

Threshold

0.5

V

Leakage resistance

10

k

W

Pull-down resistance

20

k

W

Relay output with limitation of short circuit current (Pin 8)

Saturation voltage 100 mA

1.0

V

Saturation voltage 200 mA

1.2

V

Relay coil resistance

60

W