ICs for Motor AN6652 Motor Control Circuit ■ Overview + 0.5 Unit : mm 3.8 ■ Features • Small four-lead plastic package for compact motor. 1.94 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 11.5max. 8.0 – 0.1 3.05 The 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. 15.0min. • 1 2 3 4 1.778 1.778 0.5±0.2 0.5±0.1 1.778 3.5max. 5.334 1 2 3 4 1.44 1.76 4-Lead SIP Package (SSIP004-P-0000) ■ Pin Descriptions Pin No. ■ Block Diagram VREF × 20 (K) COM 1 2 3 4 VCC Control GND Motor Pin Name 1 VCC 2 Control Pin 3 GND 4 Motor Pin ICs for Motor AN6652 ■ Absolute Maximum Ratings (Ta= 25˚C) Parameter Symbol Rating 22 Supply Current VCC ICC *2 Power Dissipation Supply Voltage Unit V 1500 mA PD *1 1300 mW Operating Ambient Temperature Topr –20 ~ + 75 ˚C Storage Temperature Tstg – 40 ~ +150 ˚C *1 Ta = 25˚C, With a 10 × 10mm bakelite printed circuit board (35µm Cu leaf) *2 t ≤ 5s ■ Electrical Characteristics (Ta = 25˚C) Parameter Symbol Condition Reference Voltage VREF VCC = 12V, Ra = 1kΩ Bias Current IBias VCC = 12V K Current Proportional Constant Vsat Saturation Voltage Voltage Characteristics (1) Voltage Characteristics (2) Current Characteristics (1) Current Characteristics (2) Temperature Characteristics (1) Temperature Characteristics (2) ∆VREF /VCC VREF ∆K /VCC K ∆VREF /I4 VREF ∆K /I4 K ∆VREF /Ta VREF ∆K /Ta K ■ Characteristics Curve min. typ. 1.15 18 VCC = 12V, DI4 = 20mA VCC = 8.0V, Ra = 18Ω max. Unit 1.25 1.40 V 0.1 1 mA 20 22 1 2 V VCC = 9V ~ 16V, Ra = 1kΩ – 0.6 – 0.02 0.6 %/V VCC = 9V ~ 16V, DI4 = 20mA – 0.7 0.2 0.7 %/V I4 = 10mA ~ 50mA – 0.1 – 0.03 0.1 %/mA I4 = 50mA ~ 100mA – 0.15 – 0.01 0.15 %/mA Ta = –20˚C + 75˚C, VCC = 12V, Ra = 1kΩ Ta = –20˚C + 75˚C, DI4 = 20mA 0.01 %/˚C 0.01 %/˚C ■ Application Circuit VCC 22µH RT PD –Ta 1.6 (1) With a 10 × 10mm bakelite printed circuit board (35µm Cu leaf) (2) Without heat sink Power Dissipatior PD (W) 1.4 1.2 M Ea Ra RS 2 10µF (1) 1.0 1 0.8 Micro Motor 330Ω AN6652 4 (2) 3 0.6 0.4 Motor Constants 0.2 0 –20 0 20 40 60 80 100 120 140 160 180 Ambient Temperature Ta (˚C) Ka : Generation constant=2.4mV/rpm Ra : Internal resistor=18Ω KT : Torque constant=200g · cm/A