ST1153A SITI [Silicon Touch Technology Inc.], ST1153A Datasheet - Page 6

• Manufacturer Part Number: ST1153A
• Description: Low-saturation, Low-voltage Bi-directional Multi-Channels Motor Driver
• Manufacturer: SITI [Silicon Touch Technology Inc.]

Application Notes
To increase system stability, it is suggestion to connect a resistor R
battery power and driver's VDD pin as shown on application circuit.
The IC supports 3 channels operating separately or the parallel connection of two channels.
For 3th motor application, the power supply for 3th motor is from both VS1 and VS2 pins.
In multiple power supply application, although power supply of control logic and motor
driver are separated, the voltage of VDD pin must be lager than or equal to the voltage of
VS1 and VS2 pin.
The power dissipated by the IC varies widely with the supply voltage, the output current, and
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:
ST1153A_A05.doc
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SILICON TOUCH TECHNOLOGY INC.
900
800
700
600
500
400
300
200
100
0
0
Power Dissipation-Temperature
25
Ambient Temperature ( ℃ )
50
Version
75
：
A.05
100
125
VDD
about 470Ω between
-5-
ST1153A