ST1116B SITI [Silicon Touch Technology Inc.], ST1116B Datasheet - Page 2

• Manufacturer Part Number: ST1116B
• Description: Variable Speed Double Coil DC Brushless Motor Driver
• Manufacturer: SITI [Silicon Touch Technology Inc.]

ST1116B
General Specifications
Features and Benefits
The device is a driver with variable speed control for two-phase unipolar driver of DC
brushless fan motor applications. The device is intended to be used as an interface between a
HALL effect latch and a double coil load. The device has functions such as driving, rotation
detecting, lock protection, self-restart and speed control.
An open-drain FG pin outputs the pulses, of which the frequency is proportional to the fan
speed. With suitable output pull up, this fan tachometer output can be used directly with
bipolar or MOS logic for motor speed monitoring/control.
SP-ST1116B-A.003
Variable fan speed control
Motor starts at low speed
Lock protection and automatic self-restart
Tachometer output
High output sinking current capability
Connectable direct to a HALL Latch IC
Thin, highly reliable package ( SOP-8 )
點晶科技股份有限公司
SILICON TOUCH TECHNOLOGY INC.
Variable Speed Double Coil
DC Brushless Motor Driver
Version
：
A.003
Page
ST1116B
：
1