January 1996

INT200

Low-side Driver IC

Low-side Drive and High-side Control

with Simultaneous Conduction Lockout

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

• Simultaneous conduction lockout protection

• UV lockout

Description

The INT200 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

INT200 provides a simple, cost-effective interface between

low-voltage control logic and high-voltage loads. The INT200

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.

Built-in protection logic prevents both switches from turning

on at the same time and shorting the high voltage supply. 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 motor drives, electronic ballasts, and

uninterruptible power supplies. The INT200 can also be used

to implement full- bridge and multi-phase configurations.

The INT200 is available in 8-pin plastic DIP and SOIC packages.

®

ORDERING INFORMATION

PART

PACKAGE

ISOLATION

NUMBER

OUTLINE

VOLTAGE

INT200PFI1

P08A

600 V

INT200TFI1

T08A

600 V

INT200PFI2

P08A

800 V

INT200TFI2

T08A

800 V

HSD2

HS IN

PI–284C–072291

COM

8

5

7

6

N/C

LS IN

LS OUT

1

4

2

3

VDD

HSD1

Figure 2. Pin Configuration.

Figure 1. Typical Application

HV

HS IN

LS IN

INT201

INT200

PI-11762-012396

VDD

3-PHASE

BRUSHLESS

DC MOTOR