SN754410
QUADRUPLE HALF-H DRIVER
SLRS007B – NOVEMBER 1986 – REVISED NOVEMBER 1995
Copyright 1995, Texas Instruments Incorporated
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443
• HOUSTON, TEXAS 77251–1443
• 1-A Output-Current Capability Per Driver
• Applications Include Half-H and Full-H
Solenoid Drivers and Motor Drivers
• Designed for Positive-Supply Applications
• Wide Supply-Voltage Range of 4.5 V to 36 V
• TTL- and CMOS-Compatible
High-Impedance Diode-Clamped Inputs
• Separate Input-Logic Supply
• Thermal Shutdown
• Internal ESD Protection
• Input Hysteresis Improves Noise Immunity
• 3-State Outputs
• Minimized Power Dissipation
• Sink/Source Interlock Circuitry Prevents
Simultaneous Conduction
• No Output Glitch During Power Up or
Power Down
• Improved Functional Replacement for the
SGS L293
description
The SN754410 is a quadruple high-current half-H
driver designed to provide bidirectional drive
currents up to 1 A at voltages from 4.5 V to 36 V.
The device is designed to drive inductive loads
such as relays, solenoids, dc and bipolar stepping
motors, as well as other high-current/high-voltage
loads in positive-supply applications.
All inputs are compatible with TTL-and low-level CMOS logic. Each output (Y) is a complete totem-pole driver
with a Darlington transistor sink and a pseudo-Darlington source. Drivers are enabled in pairs with drivers 1 and
2 enabled by 1,2EN and drivers 3 and 4 enabled by 3,4EN. When an enable input is high, the associated drivers
are enabled and their outputs become active and in phase with their inputs. When the enable input is low, those
drivers are disabled and their outputs are off and in a high-impedance state. With the proper data inputs, each
pair of drivers form a full-H (or bridge) reversible drive suitable for solenoid or motor applications.
A separate supply voltage (V
CC1
) is provided for the logic input circuits to minimize device power dissipation.
Supply voltage V
CC2
is used for the output circuits.
The SN754410 is designed for operation from –40°C to 85°C.
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
1,2EN
1A
1Y
2Y
2A
V
CC2
V
CC1
4A
4Y
HEAT SINK AND
GROUND
3Y
3A
3,4EN
HEAT SINK AND
GROUND
A
H
L
X
EN
H
H
L
Y
H
L
Z
INPUTS
†
OUTPUT
FUNCTION TABLE
(each driver)
H = high-level, L = low-level
X = irrelevant
Z = high-impedance (off)
†
In the thermal shutdown
mode, the output is in a high-
impedance state regardless
of the input levels.
NE 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.
