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Formerly TLP298
2-A Output Current Capability Per Full-H
Driver
Applications Include Half-H and Full-H
Solenoid Drivers and Motor Drivers
Wide Range of Output Supply Voltage
5 V to 46 V
Separate Input-Logic Supply Voltage
Thermal Shutdown
Internal Electrostatic Discharge Protection
High Noise Immunity
3-State Outputs
Minimized Power Dissipation
Sink/Source Interlock Circuitry Prevents
Simultaneous Conduction
Improved Functional Replacement for the
SGS L298
The TPIC0298 is a dual high-current full-H driver
designed to provide bidirectional drive currents of
up to 2 A at voltages from 5 V to 46 V. It is designed
to drive inductive loads such as relays, solenoids,
dc motors, stepping motors, and other high-
current or high-voltage loads in positive-supply
applications. All inputs are TTL compatible. Each
output (Y) is a complete totem-pole drive with a
Darlington transistor sink and a pseudo-
Darlington source. Each full-H driver is enabled
separately. Outputs 1Y1 and 1Y2 are enabled by
1EN and outputs 2Y1 and 2Y2 are enabled by
2EN. When an EN input is high, the associated
channels are active. When an EN input is low, the
associated channels are off (i.e., in the high-
impedance state).
Each half of the device forms a full-H reversible
driver suitable for solenoid or motor applications.
The current in each full-H driver can be monitored
by connecting a resistor between the sense output
terminal 1E and GND and another resistor
between sense output terminal 2E and GND.
KV PACKAGE
(TOP VIEW)
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
The tab is electrically connected to GND.
2E
2Y2
2Y1
2A2
2EN
2A1
V
CC1
GND
1A2
1EN
1A1
V
CC2
1Y2
1Y1
1E
logic symbol
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1A1
1EN
1A2
2A1
2EN
2A2
5
6
7
10
11
12
EN
EN
X
EN
X
EN
2
1
3
13
15
14
1Y1
1E
1Y2
2Y1
2E
2Y2
description
鈥?This symbol is in accordance with ANSI/IEEE Std 91-1984
and IEC Publication 617-12.
FUNCTION TABLE
INPUTS
A
H
L
X
EN
H
H
L
OUTPUT
Y
H
L
Z
H = high-level ,
L = low-level
X = irrelevant
Z = high-impedance (off)
External high-speed output-clamp diodes should be used for inductive transient suppression. To minimize
device power dissipation, a V
CC1
supply voltage, separate from V
CC2
, is provided for the logic inputs.
The TPIC0298 is designed for operation from 0擄C to 70擄C.
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
漏
1990, Texas Instruments Incorporated
POST OFFICE BOX 655303
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DALLAS, TEXAS 75265
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