Datasheet

7
LTC1156
4-Phase Stepper Motor Driver with Short-Circuit Protection
Full H-Bridge Driver with Short-Circuit Protection and 16µA Standby Current
Low Frequency Operation (<100Hz)
For more Typical Applications, see LTC1155 data sheet.
5V
0.1µF
100k
0.05Ω
1156 TA06
* STR101G TECHNO [phone]
** SOFTWARE (OR HARDWARE) DELAYS SHOULD BE PROVIDED TO AVOID
CROSS-CONDUCTION. ALL COMPONENTS SHOWN ARE SURFACE MOUNT.
**
CONTROL
LOGIC
OR µP
+
10µF
Si9956DY
Si9956DY
V
S
V
S
DS1
DS2
DS3
DS4
IN1
IN2
IN3
IN4

G1
G2
G3
G4
GND
GND
LTC1156
0.1µF
0.05Ω
LOAD
100k
6V
V
S
V
S
DS1
DS2
DS3
DS4
IN1
IN2
IN3
IN4

G1
G2
G3
G4
CONTROL
LOGIC
+
10µF
5V
0.01µF
30k
0.05Ω
A
B
C
D
1156 TA05
2A MAX
Si9956DY
Si9956DY
GND
GND
* STR101G TECHNO [phone]
LTC1156
1N4001
1N4001
1N4001
1N4001
U
SA
O
PP
L
IC
AT
ITY
P
I
CA
L
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.