TA8440F

TA8440H/F TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC TA8440H,TA8440F DC MOTOR FULL BRIDGE DRIVER F TYPE: UNDER DEVELOPMENT The TA8440H is a full−bridge driver for selecting the forward and reverse running of a motor with brushes and is able to control 4 modes of forward, reverse, stop and braking. The motor driving unit and the control unit have a separate power supply line, independently and the TA8440H is also usable as a stepping motor driver. TA8440H FEATURES l Output current is as large as 1.5A (AVE) and 3.0A (PEAK). l 4 modes of forward, reverse, stop, and braking are available and a counter−electromotive force absorbing diode has been built−in. l Thermal shutdown circuit incorporated. l Input is compatible with CMOS. l Built−in input pull−up resistor. BRAKE = 200 kΩ (Typ.) l Built−in input pull−down resistor. IN, ENABLE = 100 kΩ (Typ.) TA8440F (Under development) BLOCK DIAGRAM Weight HZIP12-P-1.78B: 4.04 g (Typ.) HSOP20-P-450-1.00: 0.79 g (Typ.) TA8440F: 3, 6, 8, 10, 11, 12, 19, 20 pin is No Connection. 1 TA8440H/TA8440F 2001-08-29 PIN FUNCTION Pin No. HF 12 24 35 4 FIN 57 69 71 8 13 9 15 10 14, 17 11 16 12 18 SYMBOL ENABLE IN BRAKE SG CHOP VCC VS OUTA PG COMMON PG OUT A FUNCTIONAL DESCRIPTION ENABLE terminal Forward rotation / reverse rotation switch terminal BRAKE terminal Signal GND PWM signal input terminal Power voltage supply terminal for control Power voltage supply terminal for motor driver Output terminal Power GND COMMON terminal...