NJM3771

General

Phase inputs

A logic HIGH on a Phase input gives positive current flowing out from M

the opposite direction.

Slow/fast current decay

A logic HIGH on the CD input gives slow current decay, a logic LOW gives fast current decay.

Heat sinking

35

µm) permits the circuit to operate with a maximum of 320 mA output current, both channels driving, at ambient

temperatures up to +70

°C. Consult figures 9 and 14 in order to determine the necessary copper area for heat

sinking if higher currents are required.

Thermal shutdown

The circuit is equipped with a thermal shutdown function that reduces the output current at chip temperatures

above +160

°C.

Thermal resistance [

°C/W]

PCB copper foil area [cm ]

2

80

70

60

50

40

30

20

510

15

20

30

35

25

PLCC package

DIP package

Figure 9. Thermal Resistance vs. PC Board copper area and suggested layout

24-pin EMP

22-pin

DIP

28-pin

PLCC