SC531

6

Pin Descriptions

Pin #

Pin Name

Signal Type

Pin Function



A0

Digital input

Address for SPI interface

2

ZVSP

Analog input

ZVS comparator positive input

3

ZVSN

Analog input

ZVS comparator negative input

4

VCC

Power input

Input supply voltage. Connect a 2.2uF bypass capacitor from VCC to

GND.

5

ZVS

Digital output

ZVS comparator output

6

PGND3

GROUND

Driver 3 power ground.

7

OUT3

Power output

Driver 3 output

8

PVDD3

Power input

Driver 3 supply voltage. Connect a 2.2uF bypass capacitor from PVDD3

to PGND3.

9

IN3

Digital input

Driver 3 signal input

0

IN

Digital input

Driver  and 2 signal input



BLANKB

Digital input

Current limit blanking input

2

CLF

Digital output

Current limit flag

3

DAC

Analog output

DAC output

4

VREF

Analog input/output

Reference Voltage

5

VREFL

Analog input

Low reference for VREF resistor divider and DAC. Typically connected to

GND.

6

CSENSE

Analog input

Current sense input

7

VREFH

Analog input

High reference for top of VREF resistor divider

8

GND

GROUND

IC Ground

9

DIN

Digital input

SPI data input

20

CLK

Digital input

SPI clock input

2

CSB

Digital input

SPI chip select input

22

OE2B

Digital input

Driver 2 enable

23

PGND2

GROUND

Driver 2 power ground

24

OUT2

Power output

Driver 2 output

25

PVDD2

Power input

Driver 2 supply voltage. Connect a 2.2uF bypass capacitor from PVDD2

to PGND2.

26

PVDD

Power input

Driver  supply voltage. Connect a 2.2uF bypass capacitor from PVDD

to PGND2.

27

OUT

Power output

Driver  output

28

PGND

GROUND

Driver  power ground

T

Thermal Pad

GROUND

Connected to GND, use multiple thermal vias for heatsinking purposes