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| ICs for Motor AN6652 Motor Control Circuit s Overview 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. 8.0 - 0.1 3.05 + 0.5 Unit : mm 3.8 1.94 1234 1.778 1.778 5.334 1234 s 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 0.50.2 1.778 3.5max. 15.0min. * 11.5max. 0.50.1 1.44 1.76 4-Lead SIP Package (SSIP004-P-0000) s Pin Descriptions Pin No. 1 2 3 4 VCC Control Pin GND Motor Pin Pin Name s Block Diagram VREF x 20 (K) COM 1 VCC 2 Control 3 GND 4 Motor AN6652 s Absolute Maximum Ratings (Ta= 25C) Parameter Supply Voltage Supply Current Power Dissipation Operating Ambient Temperature Storage Temperature Symbol VCC ICC *2 PD *1 Topr Tstg Rating 22 1500 1300 -20 ~ + 75 - 40 ~ +150 ICs for Motor Unit V mA mW C C *1 Ta = 25C, With a 10 x 10mm bakelite printed circuit board (35m Cu leaf) *2 t 5s s Electrical Characteristics (Ta = 25C) Parameter Reference Voltage Bias Current Current Proportional Constant Saturation Voltage Voltage Characteristics (1) Voltage Characteristics (2) Current Characteristics (1) Current Characteristics (2) Temperature Characteristics (1) Temperature Characteristics (2) Symbol VREF IBias K Vsat VREF /VCC VREF K /VCC K VREF /I4 VREF K /I4 K VREF /Ta VREF K /Ta K Condition VCC = 12V, Ra = 1k VCC = 12V VCC = 12V, DI4 = 20mA VCC = 8.0V, Ra = 18 VCC = 9V ~ 16V, Ra = 1k VCC = 9V ~ 16V, DI4 = 20mA I4 = 10mA ~ 50mA I4 = 50mA ~ 100mA Ta = -20C + 75C, VCC = 12V, Ra = 1k Ta = -20C + 75C, DI4 = 20mA - 0.6 - 0.7 - 0.1 - 0.15 18 min. 1.15 typ. 1.25 0.1 20 1 - 0.02 0.2 - 0.03 - 0.01 0.01 0.01 max. 1.40 1 22 2 0.6 0.7 0.1 0.15 V %/V %/V %/mA %/mA %/C %/C Unit V mA s Characteristics Curve PD -Ta 1.6 1.4 Power Dissipatior PD (W) 1.2 1.0 0.8 0.6 0.4 0.2 0 -20 0 (2) (1) With a 10 x 10mm bakelite printed circuit board (35m Cu leaf) (2) Without heat sink (1) s Application Circuit VCC 22H RT 330 Micro Motor M Ea Ra RS 2 10F 1 AN6652 3 4 Motor Constants 20 40 60 80 100 120 140 160 180 Ambient Temperature Ta (C) Ka : Generation constant=2.4mV/rpm Ra : Internal resistor=18 KT : Torque constant=200g * cm/A |
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