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2944 QUAD HIGH-CURRENT, HIGH-VOLTAGE SOURCE DRIVER

QUAD HIGH-CURRENT, HIGH-VOLTAGE SOURCE DRIVER

2944 QUAD HIGH-CURRENT, HIGH-VOLTAGE SOURCE DRIVER
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. 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. 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. 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.
Data Sheet 29309.10
Dwg. No. A-13, 054
FEATURES
ABSOLUTE MAXIMUM RATINGS at +25°C Free-Air Temperature
Supply Voltage Range, VS ... 10 V to 60 V Output Current, IOUT (dc) ........................ - 4 A (peak) ...................... - 5 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
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 and a junction temperature of +150°C.
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
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
TRUTH TABLE
NOTE: Pin 3 must be connected to VS for operation of input logic gates.
0 25 50 75 100 TEMPERATURE IN °C 125 150
Dwg. GP-012B
2944 QUAD HIGH-CURRENT, HIGH-VOLTAGE SOURCE DRIVER
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)
2944 QUAD HIGH-CURRENT, HIGH-VOLTAGE SOURCE DRIVER
Dimensions in Inches
(controlling dimensions)
INDEX AREA
0.290 MIN
Dwg. MP-007 in
NOTES: 1. 2. 3. 4.
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)
INDEX AREA
7.36 MIN
Dwg. MP-007 mm
NOTES: 1. 2. 3. 4.
2944 QUAD HIGH-CURRENT, HIGH-VOLTAGE SOURCE DRIVER
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115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000
2944 QUAD HIGH-CURRENT, HIGH-VOLTAGE SOURCE DRIVER
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2944 QUAD HIGH-CURRENT, HIGH-VOLTAGE SOURCE DRIVER
POWER SOURCE DRIVERS SELECTION GUIDE
IN ORDER OF 1) OUTPUT CURRENT, 2) OUTPUT VOLTAGE, 3) NUMBER OF DRIVERS
Serial Input Latched Drivers
Features
Diode Clamp Saturated Outputs Internal Protection
Active Pull-Down Active Pull-Down Active Pull-Down Active Pull-Down
Part Number 5815 5810-F and 6809 / 10 5811 and 6811 5812-F and 6812 5818-F and 6818 6118 2585 2985 5895 2987 2981 and 2982 5891 2580 2983 and 2984 5890 2588
Current is maximum specified test condition, voltage is maximum rating. See specification for sustaining voltage limits or over-current protection voltage limits. Complete part number includes additional characters to indicate operating temperature range and package style.
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 design of its products. The information included herein is believed to be accurate and reliable. However, Allegro MicroSystems, Inc. assumes no responsibility for its use nor for any infringements 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