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UH477_15 Datasheet, PDF (2/6 Pages) Unisonic Technologies – SINGLE PHASE DC MOTOR DRIVE IC
UH477
Preliminary
LINEAR INTEGRATED CIRCUIT
 PIN DESCRIPTION
PIN NO.
1
2
3
4
PIN NAME
DESCRIPTION
VCC IC Power Supply
NO Coil driver output is low state during the N magnetic field.
SO Coil driver output is low state during the S magnetic field.
GND IC Ground
 BLOCK DIAGRAM
1
Temperature
2
Voltage
Hall
Compensated
Latch
Regulator
Element
Current
Circuit
Amplifier
Hysteresis
Control
Pre-Driver
Sensitivity
Control
3
Thermal
Shutdown
4
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 6
QW-R109-028.b