If MilitaryAerospace specified devices are required

please contact the National Semiconductor Sales

OfficeDistributors for availability and specifications

Supply Voltage

7V

Input Voltage

55V

Operating Free Air Temperature Range

DM74

Storage Temperature Range

b

Note

The ‘‘Absolute Maximum Ratings’’ are those values

beyond which the safety of the device cannot be guaran-

teed The device should not be operated at these limits The

parametric values defined in the ‘‘Electrical Characteristics’’

table are not guaranteed at the absolute maximum ratings

The ‘‘Recommended Operating Conditions’’ table will define

the conditions for actual device operation

Recommended Operating Conditions

Symbol

Parameter

DM7450

Units

Min

Nom

Max

Supply Voltage

475

5

525

V

High Level Input Voltage

2

V

Low Level Input Voltage

08

V

High Level Output Current

b

04

mA

Low Level Output Current

16

mA

Free Air Operating Temperature

0

70

C

Electrical Characteristics

Over recommended operating free air temperature range (unless otherwise noted)

Symbol

Parameter

Conditions

Min

Typ

Max

Units

(Note 1)

Input Clamp Voltage

b

15

V

High Level Output

24

34

V

Voltage

Low Level Output

02

04

V

Voltage

Input Current

Max

1mA

Input Voltage

Expander Current

31

mA

High Level Input Current

40

m

A

Low Level Input Current

b

16

mA

Short Circuit

b

18

b

57

mA

Output Current

Supply Current with

8mA

Outputs High

Supply Current with

14

mA

Outputs Low

Base-Emitter Voltage

of Output Transistor Q

10

V

2