Capable driving loads supply voltages (inductive loads UDN2944W quad h

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Capable driving loads supply voltages (inductive loads UDN2944W quad h

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QUAD HIGH-CURRENT, HIGH-VOLTAGE SOURCE DRIVER
Capable driving loads supply voltages (inductive loads UDN2944W quad high-current, highvoltage source driver. Each four power drivers provide space- cost-saving interface between low-level signal-processing circuits high-power loads harsh environments.
Data Sheet 29309.10
ABSOLUTE MAXIMUM RATINGS +25°C Free-Air Temperature
Supply Voltage Range, Output Current, IOUT (continuous) -4.0 (peak) Input Voltage, Package Power Dissipation, Graph Operating Temperature Range, -20°C +85°C Storage Temperature Range, -55°C +150°C Output current rating will limited ambient temperature, duty cycle, heat sinking, flow, number outputs conducting. Under conditions, exceed -5.0 peak current junction temperature +150°C.
Dwg. A-13,054
Individual supply lines have been provided each pair drivers that different supplies used drive multiple loads. controlling inputs CMOS compatible. outputs include transient-suppression diodes inductive loads. This quad Darlington array designed serve interface between low-level circuitry peripheral-power loads such solenoids, motors, incandescent displays, heaters, similar loads channel. UDN2944W ideal complement UDN2878W quad sink driver. maximum power-handling capability, UDN2944W driver supplied 12-pin single in-line, power-tab package that allows efficient attachment external heat sink maximum allowable package power dissipation. external heat sink usually required proper operation this device. ground potential needs insulation.
FEATURES
Output Current Output Voltage Loads Integral Output Suppression Diodes CMOS Compatible Inputs Plastic Single In-Line Package Heat-Sink
Always order complete part number: UDN2944W
2944 QUAD HIGH-CURRENT, HIGH-VOLTAGE SOURCE DRIVER
PARTIAL SCHEMATIC
Dwg. A-13,058
ALLOWABLE PACKAGE POWER DISSIPATION WATTS
TRUTH TABLE
2.0°C/W
INPUT
ENABLE
OUTPUT
3.0°C/W HEAT SINK 5.0°C/W
12°C/W HEAT SINK 14°C/W
NOTE: must connected operation input logic gates.
FREE AIR, 38°C/W
TEMPERATURE
Dwg. GP-012B
Northeast Cutoff, 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 Copyright 1986, 2000 Allegro MicroSystems, Inc.
2944 QUAD HIGH-CURRENT, HIGH-VOLTAGE SOURCE DRIVER
ELECTRICAL CHARACTERISTICS +25°C, +150°C, VENABLE (unless otherwise noted).
Characteristic Supply Voltage Range Output Leakage Current Output Sustaining Voltage Output Saturation Voltage Symbol ICEX VCE(sus) VCE(SAT) VOUT VENABLE IOUT IOUT IOUT Input Voltage Logic Logic Input Current Logic VIN(1) VENABLE(1) VIN(0) VENABLE(0) VIN(1) VENABLE(1) VIN(1) VENABLE(1) Logic Total Supply Current Clamp Diode Leakage Current Clamp Diode Forward Voltage Turn-On Delay Turn-Off Delay tOFF VIN(0) VENABLE(0) drivers outputs open Eout, Eout, Test Conditions Min. Limits Max. Units
NOTE: Negative current defined coming (sourcing) device being tested.
TYPICAL APPLICATION
QUAD RELAY DRIVE (Using Voltage Sources Optional Current Limiting)
www.allegromicro.com
2944 QUAD HIGH-CURRENT, HIGH-VOLTAGE SOURCE DRIVER
Dimensions Inches
(controlling dimensions)
1.260 1.240 0.020 0.775 0.765 0.245 0.225
0.180
0.055 0.045 0.155 0.145 0.135 0.100
0.140 0.365 0.570 0.540
INDEX AREA
0.290
0.065 0.035
0.030 0.020
0.100
±0.010
0.023 0.018
0.080 0.070
Dwg. MP-007
NOTES:
Lead thickness measured seating plane below. Lead spacing tolerance non-cumulative. Exact body lead configuration vendor's option within limits shown. Lead gauge plane 0.030" below seating plane. Supplied standard sticks/tubes devices.
Northeast Cutoff, 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000
2944 QUAD HIGH-CURRENT, HIGH-VOLTAGE SOURCE DRIVER
Dimensions Millimeters
(for reference only)
32.00 31.49 0.51 19.69 19.45 6.22 5.71
4.57
1.40 1.14 3.94 3.68 3.43 2.54
3.56 9.27 14.48 13.71
INDEX AREA
7.36
1.65 0.89
0.76 0.51
2.54
±0.254
0.59 0.45
2.03 1.77
Dwg. MP-007
NOTES:
Lead thickness measured seating plane below. Lead spacing tolerance non-cumulative. Exact body lead configuration vendor's option within limits shown. Lead gauge plane 0.762 below seating plane. Supplied standard sticks/tubes devices.
www.allegromicro.com
2944 QUAD HIGH-CURRENT, HIGH-VOLTAGE SOURCE DRIVER
products described here manufactured under more U.S. patents U.S. patents pending. Allegro MicroSystems, Inc. reserves right make, from time time, such departures from detail specifications required permit improvements performance, reliability, manufacturability products. Before placing order, user cautioned verify that information being relied upon current. Allegro products authorized critical components life-support devices systems without express written approval. information included herein believed accurate reliable. However, Allegro MicroSystems, Inc. assumes responsibility use; infringement patents other rights third parties which result from use.
Northeast Cutoff, 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000

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