Supertex inc.

Supertex inc.

www.supertex.com

HT0740

Doc.# DSFP-HT0740

B060413

Features

Applications

General Description

The Supertex HT0740 is a single channel, high voltage, low

input current, isolated driver utilizing Supertex’s proprietary

MOSFETs, configured as high side switches, up to 400V.

The HT0740 generates an independent DC isolated voltage

across the pair of outputs when the logic input is at a logic

high. The HT0740 does not require any external power

supplies. The internal supply voltage is supplied from the

logic input when it is in the high state.

Block Diagram

High Voltage,

Isolated MOSFET Driver

V

ISO

R = 158kΩ ± 47%

Logic

&

Internal

Clock

Driver

+

VOUT

-

Isolation Barrier

10R

R

R

4

3

1

7

VIN

GND