ST1155A SiTi, ST1155A Datasheet - Page 6

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

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Application Notes
ST1155A_A05.doc
To increase system stability, it is suggestion to connect a resistor R
In multiple power supply application, although power supply of control logic and motor
The power dissipated by the IC varies widely with the supply voltage, the output current, and
battery power and driver's VDD pin as shown on application circuit.
driver are separated, the voltage of VDD pin must be lager than or equal to the voltage of
VS1 and VS2 pin.
loading. It is important to ensure the application does not exceed the allowable power
dissipation of the IC package. The recommended motor driver power dissipation versus
temperature is depicted as follows:
點晶科技股份有限公司
SILICON TOUCH TECHNOLOGY INC.
900
800
700
600
500
400
300
200
100
0
0
25
Power Dissipation-Temperature
Ambient Temperature ( ℃ )
Version: A.05
50
75
100
125
VDD
about 470Ω between
-5-
ST1155A