©

1997

DATA SHEET

MOS INTEGRATED CIRCUIT

MONOLITHIC DUAL H BRIDGE DRIVER CIRCUIT

DESCRIPTION

The

µPD16813 is a monolithic dual H bridge driver circuit which uses power MOS FETs in its driver stage. By

complementing the P channel and N channel of the output stage, the circuit current has been substantially inproved

as compared with that of conventional charge pump drivers.

The

µPD16813 is therefore ideal as the driver circuit of the 2-phase excitation, bipolar-driven stepping motor for

the head actuator of an FDD.

FEATURES

•

Low ON resistance (sum of ON resistors of top and bottom transistors)

Ω TYP.

•

µA MAX.

•

Noise reduction circuit that operates when INC is OFF.

•

Compact surface mount package: 16-pin plastic SOP (300 mil)

PIN CONFIGURATION (Top View)

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

1A

2A

INC

NC

1B

2B

SEL

NC

DGND

ORDERING INFORMATION

Part Number

Package

µPD16813GS

16-pin plastic SOP (300 mil)

Document No. S10590EJ2V0DS00 (2nd edition)

Date Published July 1997 N

Printed in Japan