ST1155A SiTi, ST1155A Datasheet - Page 2

• Manufacturer Part Number: ST1155A
• Description: Low-voltage bi-directional Motor Driver
• Manufacturer: SiTi

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ST1155A
General Specifications
Features and Benefits
Pin Assignment
The device is a two-channel low-saturation bi-directional motor driver IC. The design is
optimal for stepper-motor applications, such as cameras, printers, FDDs, or other portable
devices.
ST1155A_A05.doc
Low voltage operation ( V
Low saturation voltage ( Upper transistor + low transistor residual voltage; 0.3V typ. at
400mA; 0.6V typ. at 750mA)
Parallel connection ( two-channel driver: Upper transistor + low transistor residual ; 0.4V
typ. at 800mA )
Separate control logic power supply and motor driver power supply
High output sinking and driving capability
Thin, highly reliable package (SOP-14)
點晶科技股份有限公司
SILICON TOUCH TECHNOLOGY INC.
Low-saturation, Low-voltage
Bi-directional Motor Driver
ENA1
DD min
VDD
GND
VS1
IN1
O1
O2
1
2
3
4
5
6
7
= V
Version: A.05
S1 min
ST1155A
= V
S2 min
13
12
11
10
14
9
8
= 1.5V )
GND
ENA2
O3
VS2
O4
IN2
NC
-1-
ST1155A