ST1155A Datasheet, PDF (2/7 Pages) List of Unclassifed Manufacturers – Low-saturation, Low-voltage bi-directional Motor Driver

點晶科技股份有限公司
SILICON TOUCH TECHNOLOGY INC.
ST1155A
ST1155A
Low-saturation, Low-voltage
Bi-directional Motor Driver
General Specifications
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.
Features and Benefits
Low voltage operation ( V_{DD min} = V_{S1 min} = V_{S2 min} = 1.5V )
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)
Pin Assignment
VDD
1
ENA1
2
O1
3
VS1
4
O2
5
IN1
6
GND
7
ST1155A
14 GND
13 ENA2
12 O3
11 VS2
10 O4
9
IN2
8
NC
ST1155A_A05.doc
Version: A.05
-1-