7

LTC1156

4-Phase Stepper Motor Driver with Short-Circuit Protection

Full H-Bridge Driver with Short-Circuit Protection and 16

µA Standby Current

Low Frequency Operation (<100Hz)

For more Typical Applications, see LTC1155 data sheet.

5V

0.1

µF

100k

0.05

Ω

1156 TA06

* STR101G TECHNO (818) 781-1642

** SOFTWARE (OR HARDWARE) DELAYS SHOULD BE PROVIDED TO AVOID

CROSS-CONDUCTION. ALL COMPONENTS SHOWN ARE SURFACE MOUNT.

**

CONTROL

LOGIC

OR

µP

+

10

µF

Si9956DY

Si9956DY

DS1

DS2

DS3

DS4

IN1

IN2

IN3

IN4

G1

G2

G3

G4

GND GND

LTC1156

0.1

µF

0.05

Ω

LOAD

100k

6V

DS1

DS2

DS3

DS4

IN1

IN2

IN3

IN4

G1

G2

G3

G4

CONTROL

LOGIC

+

10

µF

5V

0.01

µF

30k

0.05

Ω

A

B

C

D

1156 TA05

2A MAX

Si9956DY

Si9956DY

GND GND

* STR101G TECHNO (818) 781-1642

LTC1156

1N4001

1N4001

1N4001

1N4001

S

APPLICATI

TYPICAL

Information furnished by Linear Technology Corporation is believed to be accurate and reliable.

However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-

tation that the interconnection of circuits as described herein will not infringe on existing patent rights.