SN75439NE Datasheet, PDF (1/9 Pages) Texas Instruments – QUADRUPLE PERIPHERAL DRIVER

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• 1.3-A Current Capability Each Channel
• Saturating Outputs With Low On-State
Resistance
• Two Inverting and Two Noninverting Driver
Channels With Common Active-Low Enable
Input
• Key Application Is as a Complete Full-Step
4-Phase DC Stepper Motor Driver Using
Only Three Directly Connected Logic
Control Signal Lines From Standard
Microprocessors
• High-Impedance Inputs Compatible With
TTL or CMOS Levels
• Very Low Standby Power . . . 10 mW Typ
• 50-V Noninductive Switching Voltage
Capability
• 40-V Inductive Switching Voltage Capability
• Output Clamp Diodes for Inductive
Transient Protection
• 2-W Power Package
description
The SN75439 quadruple peripheral driver is
designed for use in systems requiring high
current, high voltage, and high load power. The
device features two inverting and two noninverting
open-collector outputs with a common-enable
input that, when taken high, disables all four
outputs. By pairing each inverting channel with a
corresponding noninverting channel (such as
channel 1 paired with channel 2 and channel 3
paired with channel 4), the device may be used as
a complete full-step 4-phase dc stepper-motor
driver using only two input logic control signals
plus the enable signal, as shown in Figure 3. Other
applications include driving relays, lamps,
solenoids, motors, LEDs, transmission lines,
hammers, and other high-power-demand loads.
The SN75439 is characterized for operation from
0°C to 70°C.
SN75439
QUADRUPLE PERIPHERAL DRIVER
SLRS013A − MAY 1988 − REVISED NOVEMBER 1989
NE PACKAGE
(TOP VIEW)
1Y 1
1, 2D 2
2Y 3
HEAT SINK
4
AND GND
5
3Y 6
3, 4D 7
4Y 8
16 1A
15 2A
14 G
13 HEAT SINK
12 ^{AND GND}
11 V_CC
10 3A
9 4A
logic symbol^†
14
G
16
1A
15
2A
10
3A
9
4A
EN
CLAMP
1 _1Y
3
2Y
2
1, 2D
6
3Y
8
4Y
7
3, 4D
† _{This symbol is in accordance with ANSI/IEEE Std 91-1984}
and IEC publication 617-12.
Function Tables
EACH CHANNEL 1 OR
CHANNEL 4 DRIVER
EACH CHANNEL 2 OR
CHANNEL 3 DRIVER
INPUTS
AG
OUTPUT
Y
INPUTS
AG
OUTPUT
Y
HL
L
LX
H
XH
H
LL
L
HX
H
XH
H
H = high level, L = low level X = irrelevant
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  1989, Texas Instruments Incorporated
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
• POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443
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