TA7247AP

TA7247AP TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC TA7247AP DC MOTOR DRIVER The TA7247AP is a 3 phase Bi−directional supply−voltage−controlled motor driver IC providing all the active functions necessary for switching−regulator−controlled FAN MOTOR of electrical Air conditioner. It’s designed for especially energy saving air conditioner applications and suitable for use any other motor driver applications. It contains 3 phase Bi−directional power driver, CW / CCW control circuit, comparator and oscillator for switching regulator, and protect circuits. FEATURES l Voltage Controlled 3 Phase Bi−Directional Motor Power Driver. l Output Current Up to 1.5 A. Weight: 8.19 g (Typ.) l High Sensitivity of Position Sensing Inputs : VH = 40 mV (Typ.) l Built in Over Current, Over Voltage, Low Voltage and Thermal Protect Circuit. l More Power−up Applications with Additional Power Transistors. l Recommended Supply Voltage : VCC1 (opr.) = 0~30 V VCC2 (opr.) = 4.5~5.5 V 1 2001-08-27 BLOCK DIAGRAM TA7247AP PIN FUNCTION PIN No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 SYMBOL VOUT VCC2 RSC La− La+ Lb− Lb+ Lc− Lc+ VCC1 GND Hc− Hc+ Hb− Hb+ Ha− Ha+ F/R CR C+ FUNCTIONAL DESCRIPTION PWM Output terminal Power supply input terminal Output current detection terminal a−phase lower drive output terminal a−phase upper drive output terminal b−phase lower drive output terminal b−phase upper drive output terminal c−phase lower drive output terminal c−phase upper d...