UDN2944: Quad High-Current, High-Voltage Source Driver

Data Sheet
29309.10†
2944
QUAD HIGH-CURRENT,
HIGH-VOLTAGE SOURCE DRIVER
Capable of driving loads to 4 A at supply voltages to 60 V (inductive loads to 35 V), the UDN2944W is a quad high-current, highvoltage source driver. Each of the four power drivers can provide
space- and cost-saving interface between low-level signal-processing
circuits and high-power loads in harsh environments.
VS
Individual supply lines have been provided for each pair of drivers
so that different supplies can be used to drive multiple loads. The
controlling inputs are TTL or CMOS compatible. The outputs include
transient-suppression diodes for inductive loads.
T
C
.
U
Y
L
D
N
O
O
R
P E
C
D
E
N
E
U
N ER
I
T
F
N
E
O
R
C
S OR
I
D F
—
This quad Darlington array is designed to serve as an interface
between low-level circuitry and peripheral-power loads such as solenoids, motors, incandescent displays, heaters, and similar loads of up to
240 W per channel. The UDN2944W is an ideal complement to the
UDN2878W quad 4 A sink driver.
Dwg. No. A-13,054
ABSOLUTE MAXIMUM RATINGS
at +25°C Free-Air Temperature
Supply Voltage Range, VS ..... 10 V to 60 V
Output Current, IOUT
(continuous) ............................... -4.0 A
(peak) ......................................... - 5.0 A
Input Voltage, VIN ................................ 15 V
Package Power Dissipation,
PD ....................................... See Graph
Operating Temperature Range,
TA ................................ -20°C to +85°C
Storage Temperature Range,
TS .............................. -55°C to +150°C
For maximum power-handling capability, the UDN2944W driver
is supplied in a 12-pin single in-line, power-tab package that allows
efficient attachment of an external heat sink for maximum allowable
package power dissipation. An external heat sink is usually required
for proper operation of this device. The tab is at ground potential and
needs no insulation.
FEATURES
■
■
■
■
■
■
■
Output Current to 4 A
Output Voltage to 60 V
Loads to 960 W
Integral Output Suppression Diodes
TTL and CMOS Compatible Inputs
Plastic Single In-Line Package
Heat-Sink Tab
Output current rating will be limited by
ambient temperature, duty cycle, heat
sinking, air flow, and number of outputs
conducting. Under any set of conditions, do
not exceed the -5.0 A peak current or a
junction temperature of +150°C.
Always order by complete part number: UDN2944W .
2944
QUAD HIGH-CURRENT,
HIGH-VOLTAGE
SOURCE DRIVER
PARTIAL SCHEMATIC
Dwg. No. A-13,058
ALLOWABLE PACKAGE POWER DISSIPATION IN WATTS
10
TRUTH TABLE
RθJT = 2.0°C/W
8
3.0°C/W HEAT SINK
RθJA = 5.0°C/W
6
INPUT
ENABLE
OUTPUT
L
H
L
H
L
L
H
H
L
H
L
L
NOTE: Pin 3 must be connected to VS for
operation of input logic gates.
12°C/W HEAT SINK
RθJA = 14°C/W
4
2
FREE AIR, R θJA = 38°C/W
0
25
50
75
100
TEMPERATURE IN ° C
125
150
Dwg. GP-012B
115 Northeast Cutoff, Box 15036
W
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright © 1986, 2000 Allegro MicroSystems, Inc.
2944
QUAD HIGH-CURRENT,
HIGH-VOLTAGE
SOURCE DRIVER
ELECTRICAL CHARACTERISTICS at TA = +25°C, TJ ≤ +150°C, VS = 60 V, VENABLE = 0 V
(unless otherwise noted).
Characteristic
Symbol
Supply Voltage Range
VS
Output Leakage Current
ICEX
Min.
Limits
Max.
Units
10
60
V
VOUT = 0 V, VENABLE = 2.4 V
—
50
µA
Test Conditions
Output Sustaining Voltage
VCE(sus)
IOUT = -4 A, L = 3 mH
35
—
V
Output Saturation Voltage
VCE(SAT)
IOUT = -1 A, VIN = 2.4 V
—
1.8
V
IOUT = -4 A, VIN = 2.4 V
—
2.5
V
Logic 1
VIN(1) or VENABLE(1)
2.0
—
V
Logic 0
VIN(0) or VENABLE(0)
—
0.8
V
Logic 1
VIN(1) or VENABLE(1) = 2.4 V
—
220
µA
VIN(1) or VENABLE(1) = 12 V
—
1.5
mA
VIN(0) or VENABLE(0) = 0.8 V
—
50
µA
Input Voltage
Input Current
Logic 0
Total Supply Current
IS
All drivers on, All outputs open
—
25
mA
Clamp Diode Leakage Current
IR
VR = 60 V
—
50
µA
Clamp Diode Forward Voltage
VF
IF = 4 A
—
2.2
V
Turn-On Delay
tON
0.5 Ein to 0.5 Eout, RL = 15 Ω
—
2.0
µs
Turn-Off Delay
tOFF
0.5 Ein to 0.5 Eout, RL = 15 Ω
—
10
µs
NOTE: Negative current is defined as coming out of (sourcing) the device being tested.
TYPICAL APPLICATION
QUAD RELAY DRIVE
(Using 2 Voltage Sources
and Optional PWM Current Limiting)
www.allegromicro.com
2944
QUAD HIGH-CURRENT,
HIGH-VOLTAGE
SOURCE DRIVER
Dimensions in Inches
(controlling dimensions)
0.180
1.260
1.240
0.020
MAX
0.775
0.765
0.245
0.225
0.055
0.045
0.155 ø
0.145
0.140
0.365
INDEX
AREA
0.065
0.035
0.570
0.540
0.135
0.100
0.290 MIN
1
0.030
0.020
12
0.100
0.023
0.018
±0.010
0.080
0.070
Dwg. MP-007 in
NOTES: 1.
2.
3.
4.
5.
Lead thickness is measured at seating plane or below.
Lead spacing tolerance is non-cumulative.
Exact body and lead configuration at vendor’s option within limits shown.
Lead gauge plane is 0.030” below seating plane.
Supplied in standard sticks/tubes of 15 devices.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
2944
QUAD HIGH-CURRENT,
HIGH-VOLTAGE
SOURCE DRIVER
Dimensions in Millimeters
(for reference only)
32.00
31.49
0.51
4.57
MAX
19.69
19.45
6.22
5.71
1.40
1.14
3.94
ø
3.68
3.56
9.27
INDEX
AREA
1.65
0.89
14.48
13.71
3.43
2.54
7.36 MIN
1
0.76
0.51
12
2.54
±0.254
0.59
0.45
2.03
1.77
Dwg. MP-007 mm
NOTES: 1.
2.
3.
4.
5.
Lead thickness is measured at seating plane or below.
Lead spacing tolerance is non-cumulative.
Exact body and lead configuration at vendor’s option within limits shown.
Lead gauge plane is 0.762 mm below seating plane.
Supplied in standard sticks/tubes of 15 devices.
www.allegromicro.com
2944
QUAD HIGH-CURRENT,
HIGH-VOLTAGE
SOURCE DRIVER
The products described here are manufactured under one or more
U.S. patents or U.S. patents pending.
Allegro MicroSystems, Inc. reserves the right to make, from time to
time, such departures from the detail specifications as may be required
to permit improvements in the performance, reliability, or
manufacturability of its products. Before placing an order, the user is
cautioned to verify that the information being relied upon is current.
Allegro products are not authorized for use as critical components
in life-support devices or systems without express written approval.
The information included herein is believed to be accurate and
reliable. However, Allegro MicroSystems, Inc. assumes no responsibility for its use; nor for any infringement of patents or other rights of
third parties which may result from its use.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000