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Supertex inc.

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Doc.# DSFP - HV440

C031414

HV440

Pin

Name

Description

1

VPP1

Positive high voltage supply.

2

PGND

High voltage power ground.

3

GND

Low voltage ground.

4

MODE

Logic mode input. Logic low activates 200nsec deadband. When mode is low, NIN turns on and off

the high voltage N- and P-Channels. Pin is not used and should be connected to VDD or ground.

5

PIN

Logic control input. When mode is high, logic input high turns off output high voltage P-Channel.

6

NIN

Logic control input. When mode is high, logic input high turns on output high voltage N-Channel.

7

EN

Active low enable input.

8

VDD

Logic supply voltage.

9

VNN1

Negative high voltage supply.

10

VNN2

Negative gate voltage supply. Generated by an internal linear regulator. A 0.1µF capacitor should

be connected between VNN2 and VNN1.

11

NGATE

Gate drive for external N-channel MOSFET.

12

VNSEN

Pulse by pulse over current sensing for internal N-Channel MOSFET.

13

HVOUT

High voltage output. Voltage swings from VPP1 to VNN1.

14

VPSEN

Pulse by pulse over current sensing for internal P-Channel MOSFET.

15

PGATE

Gate drive for external P-channel MOSFET.

16

VPP2

Positive gate voltage supply. Generated by an internal linear regulator. A 0.1µF capacitor should

be connected between VPP2 and VPP1.

Pin Description