February 1996

Product Highlights

Floating Control Inputs

• Connects directly to INT200 or INT202 HSD outputs

• No external level translators or transformers required

Gate Drive Output for an External MOSFET

• Provides 300 mA sink/150 mA source current

• Can drive MOSFET gate at up to 15 V

• Floating source for driving high-side N-channel MOSFET

• External MOSFET allows flexibility in design for various

motor sizes

Built-in Protection Circuits

• Logic inputs include noise rejection circuitry

• Undervoltage lockout

Description

The INT201 high-side driver IC provides gate drive for an

external high-side MOSFET switch. When used in conjunction

with the INT200 or INT202 low-side drivers, the INT201

provides a simple, cost-effective interface between low-voltage

control logic and high-voltage loads.

Built-in noise rejection circuitry shared between the INT201

and the INT200 or INT202 provides reliable operation in the

harshest industrial environments. The INT201 is powered from

a ground-referenced low-voltage supply. A floating supply is

derived from this rail by using a simple bootstrap technique to

provide adequate gate drive for the external N-channel MOSFET.

Applications include motor drives, electronic ballasts, and

uninterruptible power supplies. The INT201 can also be used

to implement full-bridge and multi-phase configurations.

The INT201 is available in 8-pin plastic DIP and SOIC packages.

INT201

High-side Driver IC

Floating Inputs

Floating High-side Drive

®

ORDERING INFORMATION

PART

PACKAGE

TEMP

NUMBER

OUTLINE

RANGE

INT201PFI

P08A

-40 to 85

°C

INT201TFI

T08A

-40 to 85

°C

Figure 1. Typical Application.

Figure 2. Pin Configuration.

PI–285D–091191

HSD2

8

5

7

6

SOURCE

HS OUT

N/C

HSD1

1

4

2

3

VDDH

N/C

N/C

HV

HS IN

LS IN

INT201

INT200

PI-1764-020196

VDD

3-PHASE

BRUSHLESS

DC MOTOR