TPIC0108B

PWM CONTROL INTELLIGENT H-BRIDGE

SLIS068 – NOVEMBER1998

1

POST OFFICE BOX 655303

Applications

Microcontroller Overhead

for High Noise Immunity

description

The TPIC0108B is a PWM control intelligent H-bridge designed specifically for dc motor applications. The

device provides forward, reverse, and brake modes of operation. A logic supply voltage of 5 V is internally

control inputs (IN1 and IN2) greatly simplify the microcontroller overhead requirement. The device has a low

quiescent supply current of 20

µA to suit a wide range of automotive and industrial battery-operated

applications.

The TPIC0108B provides protection against over-voltage, over-current, over-temperature, and cross

conduction faults. Fault diagnostics can be obtained by monitoring the STATUS1 and STATUS2 terminals and

the two input control lines. STATUS1 is an open-drain output suitable for wired-or connection. STATUS2 is a

push-pull output that provides a latched status output. Under-voltage protection ensures that the outputs, OUT1

The TPIC0108B is designed using TI’s LinBiCMOS

™ process. LinBiCMOS allows the integration of low power

CMOS structures, precision bipolar cells, and low impedance DMOS transistors.

The TPIC0108B is offered in a 20-pin thermally enhanced small-outline package (DWP) and is characterized

for operation over the operating case temperature of –40

°C to 125°C.

FUNCTION TABLE

IN1

IN2

OUT1

OUT2

MODE

0

0

Z

Z

Quiescent supply current mode

0

1

LS

HS

Motor turns clockwise

1

0

HS

LS

Motor turns counter clockwise

1

1

HS

HS

Brake, both HSDs turned on hard

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

LinBiCMOS is a trademark of Texas Instruments Incorporated.

1

2

3

4

5

6

7

8

9

10

20

19

18

17

16

15

14

13

12

11

GNDS

IN1

OUT1

OUT1

GND

IN2

GND

GNDS

GNDS

STATUS2

OUT2

OUT2

GND

STATUS1

GND

GNDS

DWP PACKAGE

(TOP VIEW)

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

Copyright

© 1998, Texas Instruments Incorporated