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. 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 This page intentionally left blank 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 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. www.allegromicro.com 2944 QUAD HIGH-CURRENT, HIGH-VOLTAGE SOURCE DRIVER POWER SOURCE DRIVERS IN ORDER OF 1) OUTPUT CURRENT, 2) OUTPUT VOLTAGE, 3) NUMBER OF DRIVERS Output Ratings * mA -25 V 60 60 # 8 10 Serial Input – X Features Latched Diode Saturated Drivers Clamp Outputs X – – X active pull-down – Internal Protection – – † Part Number 5815 5810-F and 6809/10 60 12 X X active pull-down – – 5811 and 6811 60 20 X X active pull-down – – 5812-F and 6812 60 32 X X active pull-down – – 5818-F and 6818 85 8 – – – – – 6118 -120 -25 8 – – X X – 2585 30 8 – – X X – 2985 50 8 X X X X – 5895 -350 35 8 – – X – X 2987 50 8 – – X – – 2981 and 2982 50 8 X X X – – 5891 -50 8 – – X – – 2580 80 8 – – X – – 2983 and 2984 80 8 X X X – – 5890 -80 8 – – X – – 2588 -500 6 1 – – – MOSFET X 2525 and 2535 6 2 – – – MOSFET X 2526 and 2536 -4000 60 4 – – X – – 2944 * 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. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000