M51660L MITSUBISHI | Alldatasheet
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SERVO MOTOR CONTROL FOR RADIO CONTROL M 51660L MITSUBISHI <CONTROL / DRIVER IC> PIN C O N FIG URAT IO N TO P VIEW DES CRIPT IO N The M51660L is a semiconductor integrated circuit for use in servo motor control in radio control applications. Housed in a 14-pin molded plastic zig-zag inline package (ZIP), the M51660L contributes to the miniaturization of the set. The built-in voltage regulating circuit, and the differential comparator used in the comparator circuit provide the M51660L with extremely stable power supply voltage fluctuation characteristics and temperature change characteristics. FEAT URES l Small circuit current 3.5mA typ. (When output is off) l Excellent power supply and temperature stability l Simple setting of dead band l Includes protection circuit for continuous “H” level input APP LICAT IO N Digital proportional system for radio control, and servo motor control circuit, etc. REC O M M ENDE D O PERA TIN G C O NDITIO N S Supply voltage range 3.5–7 V R ated supply voltage 4.8V B LOC K D IAGR A M Outline 14P5A Servo position voltage M51660L Timing capacitor Timing resistor External PNP transistor drive (1) Input Output (1) GND Error pulse output Output (2) Stretcher input External PNP transistor drive (2) Regulatedvoltage output Supply Supply 4.8V GND Inpu t Control logic circuit Flip-flop Output drive circuit Stretcher input Error pulse output Timing capacitance Servo position voltage input One-shot multivibrator Pulse stretcher Voltage regulating circuit External PNP transistor drive Output (1) Output (2) External PNP transistor drive Regulatedvoltage output V CC Timing resistor
SERVO MOTOR CONTROL FOR RADIO CONTROL M 51660L MITSUBISHI <CONTROL / DRIVER IC> Supply voltageVCC ABS O LUT E M AXIM UM RA TING S (Ta = 25°C, unless otherwise noted) Symbol Ratings UnitParameter Conditions 7.5 V TYPICAL CHARAC TER ISTIC S (Ta = 25°C, unless otherwise noted) IO SINK IO SOURSE Pd Kq Topr Tstg Output sink current Output source current Power dissipation Thermal derating range Operating temperature Storage temperature range Ta ‡ 25°C 500 200 550 5.5 -20 – +75 -40 – +125 mA mA mW mW/ °C mA EL ECT R ICAL CHARACT ERISTICS (Ta = 25°C and VCC = 4.8V, unless otherwise noted) Limits Min. Typ. Max.Symbol Test conditions UnitParameter ICC Circuit current When output is OFF 3.5 5 VVOL Output voltage “L” IO SINK = 100mA 0.1 0.2 IO SINK = 400mA 0.4 0.7 VVOH IO SOURCE = 100mA 3.8 mAIPNP Drive current VVReg Internal regulated supply voltage 2.45 2.6 mAIReg Internal regulated supply output current 3.0 msTDB Minimum dead band width 3.4 2.3 R DB = 510W , CS = 0.1mF 1.5 When output is ON External PNP transistor Output voltage “H” Circuit current vs. supply voltage When output is OFF Circuit current ICC (mA) Supply voltage VCC (V) 02 46 8 Thermal derating (maximum rating) 1000 800 600 400 200 0 25 50 75 100 125 Internal power dissipation Pd (mW) Ambient temperature Ta (°C)
SERVO MOTOR CONTROL FOR RADIO CONTROL M 51660L MITSUBISHI <CONTROL / DRIVER IC> APP LICAT IO N EXA M PLE Servo m otorcontrolcircuitforradio-controlled Deadband width vs.deadband resistance Deadband width TDB (ms) Deadband resistance RDB (W ) 01 k 2k Stretcher capacitance C S = 0.1mF Internal regulated supply voltage vs. supply voltage Internal regulated supply voltage VReg (V) Supply voltage VCC (V) 02 468 Output voltage “L” VOL (mV) Output sink current ISINK (mA) Output voltage “L” vs. output sink current 1000 100 3 7 10 53 7 100 53 7 1000 VCC = 4.8V 13119531 12108642 M VCC 10m 2SA6952SA695 0.1m 560k M5 1660L 180k 0.1m 2.2m 0.03m Input 0.1m 18k Unit Resistance Capacitance : W : F
SERVO MOTOR CONTROL FOR RADIO CONTROL M 51660L MITSUBISHI <CONTROL / DRIVER IC> TECHNI CAL APP LICAT IO N NO TES PIN D ESCRIPT IO N 1. Servo Position Voltage InputPin(Pin ) Connect the potentiometer terminal for position detection that follows the output axis. Compare this voltage with the voltage of the triangular wave of pin and drive the motor. A capacitor of approximately 0.1mF should be connected for noise prevention. 2. Tim ing C apacitorPin (Pin ) Connect a capacitor that will generate a triangular wave by constant current charging. A typical value is 0.1mF. Also connect a feedback resistor from the output here. 3. Tim ing R esistor (Pin ) Connect a resistor that will determine the value of the constant current of pin . A resistor of 18kW will yield a current of 1.0mA. A capacitor of approximately 0.03mF should be connected in parallel with the resistor to increase stability. 4. ExternalPN P TransistorD rive (Pin ) Connect to the base of the external PNP transistor. 5. Input Pin (Pin ) Operate with a positive pulse of peak value 3V or greater. 6. Ou tput Pin (Pin ) Connect a feedback resistor between this pin and pin . 7. G round (pins and ) 8. Error Pulse O utput pin (Pin ) Connect a resistor between this pin and pin . The dead band will change according to the value of this resistor. 9. Ou tput pin (Pin ) This is the output pin. 10.StretcherInputPin(Pin ) Connect the capacitor and resistor of the pulse stretcher section. 11.ExternalPN P TransistorD rive (Pin ) Connect to the base of the external PNP transistor. 12.R egulated Voltage O utputPin(Pin ) This is the output of the internal regulated supply voltage. Make connections from this pin to a potentiometer or pulse stretcher resistor. Connect a capacitor of approximately 2.2mF for stability. 13.Supply Voltage (Pin ) The supply voltage exhibits uniform characteristics from 3.5V to 7V. Connect a capacitor of approximately 10mF. 7 8