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