UTC AN6650 LINEAR INTEGRATED CIRCUIT
UTC UNISONIC TECHNOLOGIES CO., LTD. 1
QW-R109-002,A
MOTOR SPEED CONTROL
CIRCUIT
DESCRIPTION
The UTC AN6650 is a monolithic integrated circuit,
designed for the tape recorder.
FEATURES
*Wide operating supply voltage: Vcc=1.8V-7V
*Few external components
*Easy speed control mode

DIP-8
BLOCK DIAGRAM

Reference
Voltage
Start Circuit
214 3
658
7
VREF- VREF+ VCC
GND GNDPhase
Motor
Comp.
Input
10k Ω10k Ω
1k Ω
ABSOLUTE MAXIMUM RATINGS (Ta=25 °C)
PARAMETER SYMBOL VALUE UNIT
Supply Voltage V CC 7.5 V
Terminal Voltage Vn(n=1,2,3,4) -0.5 to 7.5 V
Terminal 8 Voltage V 8 -0.5 to 1 V
Supply Current I CC * 1000 mA
Terminal 7 Current I 7 1000 mA
Power Dissapation PD 750 mW
Operating Temperature T OPR -20 to 70 °C
Storage Temperature T STQ -40 to 150 °C
*Test Time<5 µs