February 1996

INT202

Low-side Driver IC

Low-side Drive and High-side Control

for Simultaneous Conduction

Product Highlights

5 V CMOS Compatible Control Inputs

• Combines logic inputs for low and high-side drives

• Schmidt-triggered inputs for noise immunity

Built-in High-voltage Level Shifters

• Integrated level shifters simplify high-side interface

• Can withstand up to 800 V for direct interface to the

INT201 high-side driver

• Pulsed high-voltage level shifters reduce power

consumption

Gate Drive Output for an External MOSFET

• Provides 300 mA sink/150 mA source current

• Can drive MOSFET gate at up to 15 V

• External MOSFET allows flexibility in design for various

motor sizes

Built-in Protection Features

• UV lockout

Description

The INT202 Low-side driver IC provides gate drive for an

external low-side MOSFET switch and high-side level shifting.

When used in conjunction with the INT201 high-side driver, the

INT202 provides a simple, cost-effective interface between

low-voltage control logic and high-voltage loads. The INT202

is designed to be used with rectified 110 V or 220 V supplies.

Both high side and low side switches can be controlled

independently from ground-referenced 5 V logic inputs on the

low side driver.

Pulsed level shifting saves power and provides enhanced noise

immunity. The circuit is powered from a nominal 15 V supply

to provide adequate gate drive for external N-channel MOSFETs.

Applications include switched reluctance motor drives. The

INT202 can also be used to implement multi-phase

configurations.

The INT202 is available in 8-pin plastic DIP and SOIC packages.

®

ORDERING INFORMATION

PART

PACKAGE

ISOLATION

NUMBER

OUTLINE

VOLTAGE

INT202PFI1

PO8A

600 V

INT202TFI1

TO8A

600 V

INT202PFI2

PO8A

800 V

INT202TFI2

TO8A

800 V

Figure 2. Pin Configuration.

Figure 1. Typical Application

HSD2

HS IN

PI–539–091191

COM

8

5

7

6

N/C

LS IN

LS OUT

1

4

2

3

VDD

HSD1

HV

HS IN

LS IN

INT201

INT202

PI-1765-020296

VDD

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