UTC AN6652 LINEAR INTEGRATED CIRCUIT MOTOR CONTROL CIRCUIT DESCRIPTION The UTC AN6652 is an IC designed for the rotating speed control of a compact DC motor, which is used for a tape recorder, record player, etc. FEATURES *Small four-lead plastic package for compact motor. Fewer external parts. *Stable low reference voltage (1.25V typ.), wide motor speed setting *Highly stable operation over a wide range of supply voltage and torque supply voltage, Vcc=6V~20V *Reverse voltage protection circuit is built-in. 1 TO-126B 1: Vcc 2: Control 3: GND 4: Motor BLOCK DIAGRAM VREF ×20 (K) COM 1 2 3 4 Vcc Control GND Motor ABSOLUTE MAXIMUM RATINGS (Ta=25℃) PARAMETER SYMBOL RATINGS Supply Voltage Vcc 22 Supply Current Icc *2 1.5 Power Dissipation PD *1 1.3 -20～+75 Operating Temperature Topr -40～+150 Storage Temperature Tstg *1. Ta = 25°C, With a 10×10mm bakelite printed circuit board (35µm Cu leaf) *2. t≤5s UTC UNIT V A W °C °C UNISONIC TECHNOLOGIES CO., LTD. 1 QW-R109-011,,A UTC AN6652 LINEAR INTEGRATED CIRCUIT ELECTRICAL CHARACTERISTICS (Ta=25℃) PARAMETER SYMBOL Reference Voltage Bias Current Current Proportional Constant Saturation Voltage Voltage Characteristics (1) TEST CONDITIONS VREF IBias K Vsat △VREF Vcc VREF Voltage Characteristics (2) △K K Vcc MIN TYP MAX UNIT Vcc=12V,Ra=1kΩ Vcc=12V Vcc=12V, DI4=20mA Vcc=8.0V, Ra=18Ω 1.15 1.25 0.1 20 1 1.40 1 22 2 V mA Vcc=9V~16V, Ra=1kΩ -0.6 -0.02 0.6 %/V Vcc=9V~16V, DI4=20mA -0.7 0.2 0.7 %/V %/mA 18 V Current Characteristics (1) △VREF I4 VREF I4=10 mA ~50mA -0.1 -0.03 0.1 Current Characteristics (2) △K I4 K I4=50mA~100mA -0.15 -0.01 0.15 %/mA Ta=-20℃~+75℃, Vcc=12V,Ra=1kΩ 0.01 %/℃ Ta=-20℃~+75℃, DI4=20mA 0.01 %/℃ Temperature Characteristics (1) △VREF Ta VREF Temperature Characteristics (2) △K Ta K APPLICATION CIRCUIT RT 330Ω Micro M Motor Ea Ra 22μH Vcc Rs 2 UTC 1 AN6652 10μF 4 3 Motor Constants UTC Ka:Generation constant=2.4mV/rpm Ra:Internal resistor = 18Ω KT:Torque constant=200g．cm/A UNISONIC TECHNOLOGIES CO., LTD. 2 QW-R109-011,,A UTC AN6652 LINEAR INTEGRATED CIRCUIT CHARACTERISTICS CURVE PD -Ta 1.6 (1) With a 10×10mm bakelite printed circuit board (35μm Cu leaf) (2) Without heat sink 1.4 Power Dissipatior, PD (W) 1.2 (1) 1.0 0.8 (2) 0.6 0.4 0.2 0 -20 0 20 40 60 80 100 120 140160 180 Ambient Temperature, Ta (℃) UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UTC UNISONIC TECHNOLOGIES CO., LTD. 3 QW-R109-011,,A