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SLIS068A − NOVEMBER1998 − REVISED APRIL 2002
DWP PACKAGE
(TOP VIEW)
D
D
D
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D
D
Low Quiescent Supply Current of 20 µA
Optimized for Low-Power/Battery-Operated
Applications
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
GNDS
GNDS
Two Input Control Lines for Reduced
Microcontroller Overhead
V
V
CC
IN1
CC
STATUS2
Internal Current Shutdown of 5 A
40 V Load Dump Rating
V
V
CC
OUT1
CC
OUT2
OUT2
GND
OUT1
GND
IN2
Integrated Fault Protection and Diagnostics
CMOS Compatible Schmitt Trigger Inputs
for High Noise Immunity
STATUS1
GND
GND
GNDS
GNDS
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
derived from V
.
CC
The TPIC0108B has an extremely low r
, 280 mΩ typical, to minimize system power dissipation. The
DS(on)
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
and OUT2, will be disabled when V
is less than the under-voltage detection voltage V
.
CC
(UVCC)
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
0
IN2
0
OUT1
Z
OUT2
Z
MODE
Quiescent supply current mode
Motor turns clockwise
0
1
LS
HS
LS
1
0
HS
HS
Motor turns counter clockwise
Brake, both HSDs turned on hard
1
1
HS
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.
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Copyright 2002, Texas Instruments Incorporated
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1
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