TA8440H Datasheet | Toshiba

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. 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 patible 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.) TA8440H/TA8440F TA8440F: 3, 6, 8, 10, 11, 12, 19, 20 pin is No Connection. 2001-08-29 TA8440H/F PIN FUNCTION Pin No. H 1 2 3 4 5 6 7 8 9 10 11 12 F 2 4 5 FIN 7 9 1 13 15 14, 17 16 18 SYMBOL ENABLE IN BRAKE 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 MON terminal Power GND Output terminal SG CHOP VCC VS OUTA PG MON PG OUT A TA8440F: 3, 6, 8, 10, 11, 12, 19, 20 pin is No Connection. FUNCTION INPUT IN H L (- ) (- ) H L BRAKE OUTPUT ENABLE H H L H H H CHOP L L (- ) (- ) H H OUTA H L ∞ L ∞ L OUT A L H ∞ L L ∞ MODE MOTOR CW / CCW CCW / CW Stop Brake Chop Chop H H (- ) L H H - : Don’t care ∞: High impedance MAXIMUM RATING (Ta =...