KA8330 LOADING MOTOR DRIVER LOADING MOTOR DRIVER 10-SIP The KA8330 is a monolitic integrated circuit designed to perform bi-directional DC motor driving, braking and speed control for VCRs , CDPs, and Toys. The speed control can be achieved by adjusting the external voltage of the motor speed control pin. And it has two pins of logic inputs for controlling the direction such as forward/reverse and braking. FEATURES • Stable braking characteristics by built-in braking function • Built-in element to absorb dash current derived from changing motor direction and braking motor driving • Built-in external motor speed control pin • Stable driving direction change • CMOS logic level compatible input level TYPICAL APPLICATIONS • VCR • CDP • TOY ORDERING INFORMATION Device Package KA8330 10-SIP Operating Temperature Î ~ +75Î -25 BLOCK DIAGRAM DRIVER PRE 1 2 3 GND VOUT 1 VZ 1 LOGIC 4 5 6 VR FIN RIN 7 8 VCC 1 VCC 2 9 VZ 2 10 VOUT 2 1 KA8330 LOADING MOTOR DRIVER PIN DESCRIPTION Pin No. 1 2 3 4 5 6 7 8 9 10 Symbol GND VOUT 1 VZ 1 VR FIN RIN VCC 1 VCC 2 VZ 2 VOUT 2 I/O O I I I I I O Description Ground Motor drive output 1 Capacitor connection Motor speed control pin. Zener diode connection. Motor turning direction selection pin. CMOS logic input. Motor turning direction selection pin. CMOS logic input. Power supply pin for IC Power supply pin for driver circuit Capacitor connection Motor drive output 2 2 KA8330 LOADING MOTOR DRIVER ABSOLUTE MAXIMUM RATINGS Characteristics (Note 1 & 2) Symbol Supply Voltage Input Voltage Output Current Operating Temperature Range Storage Temperature Range Power Dissipation ESD Susceptibility (Note 4) Value Unit V V A 18 -0.3 to VCC 1.6 (Note3) -25 to + 75 - 55 to + 125 2.2 1,500 VCC VIN IOUT TOPR TSTG PD VESD Î Î W V ² Note 1 : ABSOLUTE MAXIMUM RATINGS are those values beyond which the device may be damaged permanently. Normal operation is not guaranteed at or above these extremes. Note 2 : All voltages are measured with respect to the GND voltage level unless otherwise specified. Note 3 : Duty 1/100, pulse width 500 Note 4 : 100pF discharged through a 1.5 resistor (Human body model). ¶ Ï RECOMMENDED OPERATING CONDITIONS (Ta = 25 Characteristics Supply Voltage Î) Symbol Min Typ Max Unit VCC 8 12 16 V ELECTRICAL CHARACTERISTICS (IC Specifications : VCC = 12V, GND = 0V, Ta = 25 Characteristics Symbol Î, unless otherwise specified.) Test Conditions ICCQ Pin 5, 6=GND, RL=î IIN1 Pin5=IIN1,Pin6=L, RL=î Minimum Input On Current 2 IIN2 Pin5=L,Pin6=IIN2, RL=î Input Threshold Voltage 1 VINTH1 Pin5=VINTH1,Pin6=L, RL=î Input Threshold Voltage 2 VINTH1 Pin5=L,Pin6=VINTH2, RL=î Output Leakage Current 1 IOL1 Pin5, 6=GND, RL=î Output Leakage Current 2 IOL2 Pin5, 6=GND, RL=î Zener Current 1 IZ1 Pin5=H,Pin 6=L, RL=î Zener Current 2 IZ2 Pin5=L,Pin 6=H, RL=î Output Voltage 1 VO1 Pin5=H,Pin 6=L, RL=60Ú Output Voltage 2 VO2 Pin5=L,Pin 6=H, RL=60Ú Saturation Voltage Pin 10-1 VCE10-1 ISINK=100 Pin5=H,Pin 6=L, RL,RC=î Saturation Voltage Pin 2-1 VCE2-1 ISINK=100 Pin5=L,Pin 6=H, RL,RC=î Saturation Voltage Pin 8-2 VCE8-2 ISOURCE=100 Pin5=H,Pin 6=L, RL,RC=î Saturation Voltage Pin 8-10 VCE8-10 ISOURCE=100 Pin5=L,Pin 6=H, RL,RC=î Quiescent Current Min Typ Max 3 5.5 10 10 1.3 1.3 10 50 50 2.0 2.0 1 1 1.5 1.5 Minimum Input On Current 1 Á Á Á Á 0.7 0.7 6.6 6.6 0.85 0.85 7.2 7.1 0.83 Unit Á À À V V Á Á Á Á 1.5 V V V 0.83 1.5 V 0.83 1.5 V 0.83 1.5 V Note 5 : Specifications are subject to change without notice. 3 KA8330 LOADING MOTOR DRIVER FUNCTIONAL DESCRIPTION - Forward & Reverse Control Logic If FIN (pin 5) = ?& RIN (pin 6) = ? load current (IL) flows from VOUT1(pin 2) to VOUT2 (pin 10), if FIN = ?& RIN = ? load current (IL) flows from VOUT2 to VOUT1. ý ý - Forced Stop Logic If FIN & RIN = ?or ? the device stops supplying power to motor while absorbing inverse electromotive force from the motor as a brake. ý - Rush Current Absorbing Circuit If a high voltage generated during reversing operating is applied across VOUT1 & VOUT2, an internal comparator activates the rush-current-absorbing-circuit. - Driving Stage In the forward mode, the driving stage supplies a load current to the motor from pin 2 to pin 10. In the reverse mode, it supplies the current from pin 10 to pin 2. The output voltage VOUT applied to the motor is given by the following method : VOUT(V) = VZD - VCE(SAT) VZD : Zener Voltage applied to pin 4. If pin 4 is left open, the output voltage is given by the following method : VOUT(V) = VCC1 - VCE(SAT PNP) - 2VBE -VCE(SAT) 4 KA8330 LOADING MOTOR DRIVER TEST CIRCUIT KA8330 GND VOUT 1 VZ 1 1 2 VR 3 FIN 4 RIN 5 VCC 1 VCC 2 6 7 8 VZ 2 VOUT 2 9 10 CD 0.1 A Ó RL 60Ú S4 S3 S1 S7 S2 A S5 ZD 7.4V A S A S6 RC 10Ú VIN VCC Table 1. Logic Truth Table FIN (Pin 5) L (Note 6) L H H Note 6 : Input Level Input Level RIN (Pin 6) L H L H VOUT 1(Pin 2) L L H L VOUT 2 (Pin 10) L H L L Note Braking Reverse Forward Braking ý?> 2.0V ?< 0.7V Note 7 : Under any condition, to prevent malfunction, note that VCC 2 (pin 8) should not be open(off) later than VCC 1(pin 7) after turnning on VCC 1 and VCC 2 . Anytime VCC 1 and VCC 2 are always on/off together. The following is a case of the fatal damage to KA8330: SW1 ON/OFF SW2 OFF SW3 H SW4 L SW5 ON SW6 ON SW7 ON OFF ON OFF ON â â â 5 KA8330 LOADING MOTOR DRIVER TYPICAL APPLICATION (6V Motor Connection) KA8330 GND VOUT 1 VZ 1 1 2 VR 3 4 FIN RIN 5 6 0.1 VCC 1 VCC 2 7 8 VZ 2 VOUT 2 9 10 Ó 10Ú ZD 6.8V VIN 1 VIN 2 VCC=12V M 6