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SI9987

Buffered H-Bridge Driver with Integrate MOSFET

Vishay Semiconductors 

Product is End of Life 12/2014

Si9987

Vishay Siliconix

Buffered H-Bridge Driver with Integrate MOSFET

DESCRIPTION

The Si9987 is an integrated, buffered H-bridge with TTL

compatible inputs and the capability of delivering a

continuous 1 A at VDD = 5 V (room temperature) at switching

rates up to 500 kHz. Internal logic prevents the upper and

lower outputs of either half-bridge from being turned on

simultaneously. Unique input codes allow both outputs to be

forced low (for braking) or forced to a high impedance level.

The Si9987 is available in an 8-pin SOIC package,

specified to operate over a voltage range of 3.8 V to 13.2 V,

and the commercial temperature range of 0 °C to 70 °C

(C suffix) and - 40 °C to 85 °C (D suffix). The Si9987 is

available in lead free.

FEATURES

• 1 A H-bridge

• 500 kHz switching rate

• Shoot-through limited

• TTL compatible inputs

• 3.8 V to 13.2 V operating range

• Surface mount packaging1 A H-bridge

APPLICATIONS

• VCM driver

• Brushed motor driver

• Stepper motor driver

• Power converter

• Optical disk drives

• Power supplies

• High performance servo

FUNCTIONAL BLOCK DIAGRAM, PIN CONFIGURATION AND TRUTH TABLE

SA 1

GND 2

VDD 3

SB 4

SO-8

Si9987

Top View

8 OUTA

7 INA

6 INB

5 OUTB

TRUTH TABLE

INA

INB

OUTA

1

0

1

0

1

0

0

0

0

1

1

HiZ

OUTB

0

1

0

HiZ

(7)

INA

(6)

INB

(2)

GND

Shoot-Through

Protection Logic

VDD

(3)

(1)

(8) (5)

(4)

SA

OUTPUT SB

AB

ORDERING INFORMATION

Part Number

Si9987CY-T1

Si9987DY-T1

Si9987CY-T1-E3

Si9987DY-T1-E3

Si9987CY

Si9987DY

Temperature Range

0 °C to 70 °C

- 40 °C to 85 °C

0 °C to 70 °C

- 40 °C to 85 °C

0 °C to 70 °C

- 40 °C to 85 °C

Package

Tape and reel

Lead free Tape and reel

Bulk (tubes)

Document Number: 70864

www.vishay.com

S11-0800-Rev. E, 25-Apr-11

1

This document is subject to change without notice.

THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

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