ICs for Motor AN6650, AN6650S Motor Control Circuits Overview AN6650 8 2 7 3 6 4 2.54 9.40.3 Features * Wide range of operating voltage : VCC (opr) =1.8V ~ 7V 1 0.50.1 1.20.25 Unit : mm The AN6650 and the AN6650S are the electronic governors suitable for a low-voltage and compact DC motor which is used for a tape recorder, etc. 5 AN6650 : VCC (opr) =1.8V ~ 7V AN6650S : VCC (opr) =1.8V ~ 3.6V * 2 package types * Fewer external parts * Speed control in steps with linear fine control 0.51min. 6.30.3 3.80.25 7.620.25 3 ~ 15 (3.45) + 0.1 0.05 0.15 - 8-Lead DIP Package (DIP008-P-0300B) AN6650S 8 2 7 3 6 4 5 5.00.3 1 0.3 4.20.3 6.50.3 0.15 0.65 0.10.1 1.50.2 1.27 0.60.3 0.40.25 Unit : mm 8-Lead SOP Package (SOP008-P-0225A) Block Diagram VCC 4 1 2 3 Ref. Voltage 1k + Start Circuit - 10k 7 8 5 6 GND GND ICs for Motor AN6650, AN6650S Pin Descriptions Pin No. Pin Name Pin No. Pin Name 1 VREF - 5 GND 2 VREF + 6 GND 3 VCC 7 Motor Pin 4 Comparator Input 8 Phase Compensation Absolute Maximum Ratings (Ta= 25C) Parameter Symbol AN6650 Supply Voltage Rating VCC AN6650S AN6650 Unit 7.5 V 4 Vn - 5, 6 (n = 1, 2, 3, 4) - 0.5 7.5 - 0.5 4 Circuit Voltage Vn - 5, 6 - 0.5 Supply Current ICC * Circuit Current I7 Circuit Voltage AN6650S AN6650 Power Dissipation AN6650 Operating Ambient Temperature AN6650 mA 750 mW 360 -20 ~ + 75 C -20 ~ + 60 - 40 ~ +150 Tstg AN6650S V mA 1000 Topr AN6650S Storage Temperature 1 1000 PD AN6650S V C - 40 ~ +125 * AN6650 : t 5s, AN6650S : t 1s Electrical Characteristics (Ta = 25C) Parameter Symbol Condition mA V Supply voltage in which 30mA current flows to Ra 1.0 1.2 V VCC = 1.8V, Ra = 4.7 0.2 0.5 V -1.25 0.1 1.25 %/V -1.2 0.1 1.2 %/V - 0.2 0.01 0.2 %/mA Vref VCC = 3V, V2-1>10k Starting Voltage VCC (S) Saturation Voltage Vsat Voltage Characteristics 2 AN6650 AN6650S AN6650S Va /VCC Va Unit 1.35 Reference Voltage Voltage Characteristics 1 max. 1.28 VCC = 3V, Vref /VCC Vref typ. 3 ICC AN6650 min. 2 Supply Current VCC = 1.8V ~ 7.0V VCC = 1.8V ~ 3.6V VCC = 1.8V ~ 7.0V VCC = 1.8V ~ 3.6V Current Characteristics Vref /I7 Vref I7 = 1mA ~ 20mA Temperature Current Characteristics Vref /Ta Vref Ta = -20C ~ + 60C, VCC = 3.0V 1.20 0.01 %/C Note) Operating Supply Voltage Range : VCC (opr) = 1.8V ~ 3.6V PD - Ta Power Dissipation PD (W) 0.8 AN6650 0.7 0.6 (1) Epoxy substrate mounted (55mm x 20mm x 0.7mm) AN6650S 0.5 0.4 0.36 0.3 In case of AN6650S (2) Single unit (1) (2) 0.2 0.1 0 -20 0 20 40 60 80 100 120 140 160 Ambient Temperature Ta (C) ICs for Motor AN6650, AN6650S Application Circuit Speed Control Circuit with 3V Core Motor N-T 3000 M 0.1F 8 7 6 5 Rotational Frequency N (rpm) Motor Ra = 4 AN6650 AN6650S 1 2 3 4 1000pF 9.1k (2000ppm/C) 1F 10V VR 1kB 1000 + VCC 0.4 (3900ppm/C) Motor Constants Ra : Internal resistor = 4 Ka : Electromotive force constant = 0.4mV/rpm KT : Torque constant = 30g * cm/A VCC=2.1V - 510 3 VCC=3V 2000 0 0 10 20 Load Torque T (g - cm) 30