4

DS749A1

CS4412

OCREF

21

Over-current Reference (Input) - Sets over-current trip level. Connect pin through a resistor to

GND. See “Device Protection and Error Reporting” on page 17. This pins should not be left float-

ing.

RAMP_CAP

24

Output Ramp Capacitor (Input) - Sets the output ramp time for half-bridge configured outputs.

GND

10,14

15,16

17,18

19,20

47,48

Ground (Input) - Ground for the internal logic and I/O. These pins should be connected to the

common system ground.

VP

25,30

31,36

High Voltage Output Power (Input) - High voltage power supply for the individual output power

half-bridge devices.

PGND

22,23

27,28

33,34

37,38

39,40

Power Ground (Input) - Ground for the individual output power half-bridge devices. These pins

should be connected to the common system ground.

OUT4

OUT3

OUT2

OUT1

26

29

32

35

PWM Output (Output) - Amplified PWM power half-bridge outputs.

TWR

41

Thermal Warning Output (Output) - Thermal warning output. Open drain, active low. See

“Device Protection and Error Reporting” on page 17.

ERRUVTE

42

Thermal and Under-voltage Error Output (Output) - Error flag for thermal shutdown and under-

voltage. Open drain, active low. See “Device Protection and Error Reporting” on page 17

ERROC1/2

ERROC3/4

43

44

Over-current Error Output (Output) - Over-current error flag for the associated outputs. Open

drain, active low. See “Device Protection and Error Reporting” on page 17.

RAMP

45

Ramp-up/down Select (Input) - Set high to enable ramping. When set low, ramping is disabled.

See “PWM Popguard Transient Control” on page 13.

Pin Name

Pin #

Pin Description