TA8440H/F

2001-08-29

1

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 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.)

BLOCK DIAGRAM

TA8440H/TA8440F

TA8440F: 3, 6, 8, 10, 11, 12, 19, 20 pin is No Connection.

TA8440H

TA8440F (Under development)

Weight

HZIP12-P-1.78B: 4.04 g (Typ.)

HSOP20-P-450-1.00: 0.79 g (Typ.)