Data Sheet MOTOR CONTROL CIRCUIT AM6651B General Description Features The AM6651B is a monolithic integrated circuit that provides motor speed control, reverse voltage protection, and stable reference voltage. This IC is specially designed for tape recorder and recorder player. · · · · · Small 4-lead Plastic Package for Compact Motor Few External Components Stable Low Reference Voltage (1.0V, Typ) Wide Motor Speed Control Highly Stable Operation over a Wide Range of Supply Voltage, VCC=3.5V to 14.4V · Reverse Voltage Protection Circuit Built-in The AM6651B is available in plastic TO-126B package. Applications · · Tape Recorder Recorder Player TO-126B Figure 1. Package Type of AM6651B Mar. 2007 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 1 Data Sheet MOTOR CONTROL CIRCUIT AM6651B Pin Configuration U Package (TO-126B) 4 3 OUT GND 2 CON 1 VCC Figure 2. Pin Configuration of AM6651B (Top View) Pin Description Pin Number Pin Name Function 1 VCC Supply voltage 2 CON Control pin 3 GND Ground 4 OUT Output Mar. 2007 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 2 Data Sheet MOTOR CONTROL CIRCUIT AM6651B Functional Block Diagram CON 2 VREF 4 VCC OUT 1 COM 3 GND Figure 3. Functional Block Diagram of AM6651B Mar. 2007 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 3 Data Sheet MOTOR CONTROL CIRCUIT AM6651B Ordering Information AM6651B - Circuit Type E1: Lead Free Blank: Tin Lead Package U: TO-126B Blank: Tube Part Number Marking ID Package Temperature Range Tin Lead Lead Free Tin Lead Lead Free TO-126B 0 to 70 ℃ AM6651BU AM6651BU-E1 AM6651BU AM6651BU-E1 Packing Type Tube BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant. Absolute Maximum Ratings (Note 1) Parameter Symbol Value Unit Supply Voltage VCC 16 V Supply Current ICC 500 (Note 2) mA Power Dissipation PD 1300 mW TSTG -40 to 150 ℃ Storage Temperature Range Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum Ratings" for extended periods may affect device reliability. Note 2: The transient startup/shutdown current is allowed to exceed 1.0A. Recommended Operating Conditions Parameter Supply Voltage Operating Temperature Symbol Min Max Unit VCC 3.5 14.4 V TA 0 70 ℃ Mar. 2007 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 4 Data Sheet MOTOR CONTROL CIRCUIT AM6651B Electrical Characteristics (VCC=6V, TA=25oC, unless otherwise specified.) Parameter Symbol Conditions Min Typ Max Unit 0.90 1.0 1.10 V 0.9 1.8 mA Reference Voltage VREF VCC=6V, RA=1kΩ (Figure 6) Bias Current IBIAS VCC=6V (Figure 5) Current Coefficient K VCC=6V, ∆I4=40mA (Figure 4) (Note 3) Saturation Voltage VSAT VCC=4.2V, RA=5Ω 1.06 35 45 2 V Voltage Characteristic of Reference Voltage (∆VREF/VREF)/ ∆VCC VCC=3.5 to 14V, RA=1kΩ -0.02 %/V Voltage Characteristic of Current Coefficient (∆K/K)/∆VCC VCC=3.5 to 14V, ∆I4=40mA 0.39 %/V Current Characteristic of Reference Voltage (∆VREF/VREF)/∆I4 I4=50 to 200mA -0.06 %/mA Current Characteristic of Current Coefficient (∆K/K)/∆I4 I4=50 to 200mA -0.01 %/mA Temperature Characteristic of Reference Voltage (∆VREF/VREF)/∆TA 0.01 %/ ℃ Temperature Characteristic of Current Coefficient (∆K/K)/∆TA 0.01 %/ ℃ VCC=6V, RA=1kΩ TA=0 to 70 ℃ VCC=6V, ∆I4=40mA TA=0 to 70 ℃ Note 3: I4 is the motor driver current, please see Figures 4 and 5. Mar. 2007 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 5 Data Sheet MOTOR CONTROL CIRCUIT AM6651B Test Circuits VCC VCC I2 I4 I2 2 1 AM I4 1 AM 6651B 4 6651B 3 RT 180Ω 2 RA 1kΩ 4 3 Figure 4. Test Circuit 1 (K = ∆I4/∆I2) Figure 5. Test Circuit 2 (IBIAS=I2-I4/K) VCC VREF RT 200Ω RA V RS 240Ω 2 1 AM 6651B 4 3 V VSAT Figure 6. Test Circuit 3 Mar. 2007 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 6 Data Sheet MOTOR CONTROL CIRCUIT AM6651B Typical Application 22µH RT 180Ω VCC M Motor (6V DC Motor) constants KA: Electromotive force constant = 1.1mV/rpm RA: Internal resistor = 5Ω KT: Torque constant = 100g.cm/A 10µF RS R 2 1 AM 6651B 4 3 Figure 7. Typical Application of AM6651B Mar. 2007 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 7 Data Sheet MOTOR CONTROL CIRCUIT AM6651B Mechanical Dimensions TO-126B 3.000(0.118) 3.400(0.134) 3.700(0.146) 3.900(0.154) 7.800(0.307) 8.200(0.323) 10.800(0.425) 11.200(0.441) Unit: mm(inch) 1.500(0.059) 1.900(0.075) φ2.900(0.114) 3.100(0.122) 0.600(0.024) 0.800(0.031) 0.900(0.035) 1.100(0.043) 1.717(0.068) 1.917(0.075) 15.300(0.602) 15.700(0.618) 0.600(0.024) 0.800(0.031) 0.500(0.020) 0.700(0.028) 1.778(0.070) TYP 5.234(0.206) 5.434(0.214) Mar. 2007 Rev. 1. 3 0.450(0.018) 0.600(0.024) BCD Semiconductor Manufacturing Limited 8 http://www.bcdsemi.com IMPORTANT NOTICE BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifications herein. 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