2543

2543 ALLEGRO

Document overview

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Technical content

Providing interface between low-level logic and power loads to

100 W, the UDx2543B and UDx2543EB quad power drivers combine

AND logic gates and high-current bipolar outputs. Each of the four independent outputs can sink up to 700 mA in the ON state. The outputs have a minimum breakdown voltage (load dump) of 60 V and a sustaining voltage of 35 V. The inputs are compatible with most TTL, DTL, LSTTL, and 5 V CMOS and PMOS logic systems. Over-current protection has been designed into each channel of the UDx2543B/EB and typically occurs at 1 A. It protects any one channel from output short circuits with supply voltages up to 25 V. When the maximum output current is reached, that output stage is driven linearly. If the over-current condition continues, that output’s thermal limiting will operate, limiting that output’s power dissipation to approximately 2.4 W. The outputs also include diodes for voltage clamping with inductive loads such as relays, solenoids, or dc stepper motors. These devices are supplied in a 16-pin power DIP of batwing construction (suffix ‘B’) to provide for maximum package power dissi- pation. They are also available in a 28-lead PLCC (suffix ‘EB’) for surface-mount applications. All devices are rated for continuous operation over the temperature range of -20 °C to +85°C (UDN2543B/ EB) or for use in automotive applications over an extended tempera- ture range as the UDQ2543B/EB.

FEATURES

I 700 mA Output Current per Channel I Low Output-Saturation Voltage I Integral Output Transient-Suppression Diodes I TTL, CMOS, PMOS, NMOS Compatible Inputs I Independent Over-Current Protection for Each Output Data Sheet29317.2B 3 14 8 9 ENABLE GROUND GROUND OUT K GROUND GROUND OUT3 OUT4 K OUT1 V CC IN 1 Dwg. PP-017-1 IN4 IN3 IN 2 UDN/UDQ2543B ABSOLUTE MAXIMUM RATINGS at TA = 25°C Over-Current Protected Output Voltage, Package Power Dissipation, Operating Temperature Range, T A (UDN2543B/EB) . . . . -20 °C to +85°C (UDQ2543B/EB) . . . . -40 °C to +85°C Storage Temperature Range, *Outputs are peak current limited at approxi- mately 1.0 A per driver. See Circuit Description and Applications for further information. Always order by complete part number: Part Number Package Operating Temperature UDN2543B 16-Pin DIP -20 °C to +85°C UDN2543EB 28-Lead PLCC -20 °C to +85°C UDQ2543B 16-Pin DIP -40 °C to +85°C UDQ2543EB 28-Lead PLCC -40 °C to +85°C 2543

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000 FUNCTIONAL BLOCK DIAGRAM (1 OF 4 CHANNELS) NOTE: These devices do not include an absolute thermal shutdown. Package power dissipation under fault conditions (2.4 W in the faulted channel) must therefore be evaluated at maximum operating temperature. VCC <<1 Ω OUT Dwg. FP-041 N IN N THERMAL LIMIT ENABLE K GROUND GROUND GROUND GROUND Dwg. PP-019-1 K NO CONNECTION ENABLESUPPLY NC NC CCV OUT1 OUT2OUT3 OUT 4 IN4 IN3 IN2 IN1 NO CONNECTION K UDN/UDQ2543EB 50 75 100 125 150 ALLOWABLE PACKAGE POWER DISSIPATION IN WATTSTEMPERATURE IN °C R = 6°C/WθJT Dwg. GP-004-1A SUFFIX 'EB', R = 36°C/WθJA SUFFIX 'B', R = 43°C/WθJA Copyright © 1986, 1993, Allegro MicroSystems, Inc.

ELECTRICAL CHARACTERISTICS at TA = +25°C (UDN2543B/EB) or over operating temperature range (UDQ2543B/EB only), VCC = 4.75 V to 5.25 V Limits Characteristic Symbol Test Conditions Min. Max. Units Output Leakage Current I CEX VOUT = 60 V, VIN = 0.8 V, VEN = 2.0 V — 100 µA VOUT = 60 V, VIN = 2.0 V, VEN = 0.8 V — 100 µA Output Sustaining Voltage V OUT(SUS) IOUT = 100 mA, VIN = VEN = 0.8 V 35 — V Output Saturation Voltage V OUT(SAT) IOUT = 100 mA, VIN = VEN = 2.0 V — 200 mV IOUT = 400 mA, VIN = VEN = 2.0 V — 400 mV IOUT = 700 mA, VIN = VEN = 2.0 V — 600 mV Input Voltage Logic 1 V IN(1) or VEN(1) 2.0 — V Logic 0 V IN(0) or VEN(0) — 0.8 V Input Current Logic 1 V IN(1) or VEN(1) = 2.0 V — 20 µA Logic 0 V IN(0) or VEN(0) = 0.8 V — -10 µA Total Supply Current I CC IOUT = 700 mA*, VIN† = VEN = 2.0 V — 65 mA Outputs Open, VIN† = 0.8 V, VEN = 2.0 V — 15 mA Clamp Diode Forward Voltage V F IF = 1.0 A — 1.6 V IF = 1.5 A — 2.0 V Clamp Diode I R VR = 60 V, VIN = VEN = 2.0 V, — 50 µA D1 + D2 or D3 + D4 Leakage Current Negative current is defined as coming out of (sourcing) the specified terminal. As used here, -100 is defined as greater than +10 (absolute magnitude convention) and the minimum is implicitly zero. * Pulse test, allowable package power dissipation will be exceeded at increased ambient temperatures. † All inputs simultaneously, all other tests are performed with each input tested separately.

Worcester, Massachusetts 01615-0036 (508) 853-5000 TYPICAL OUTPUT BEHAVIOR CIRCUIT DESCRIPTION AND APPLICATION INCANDESCENT LAMP DRIVER For incandescent lamp applications, the UDx2549B/EB or UDx2559B/EB, with improved shortcircuit protection and thermal limiting, are recommended. INDUCTIVE LOAD DRIVER Bifilar (unipolar) stepper motors, relays, or solenoids can be driven directly. The internal flyback diodes prevent damage to the output transistors by suppressing the high-voltage spikes that occur when turning OFF an inductive load. For rapid current decay (fast turn-OFF speeds), the use of Zener diodes will raise the flyback voltage and improve performance. However, the peak voltage must not exceed the specified minimum sustaining voltage (V SUPPLY + VZ + VF ≤ VOUT(SUS)). FAULT CONDITIONS In the event of a shorted load, the load current will attempt to increase. As described above, the drive current to the affected output stage is diverted, causing the output stage to go linear, limiting the peak output current to approximately 1 A. As the power dissipation of that output stage increases, a thermal gradient sensing circuit will become operational, further decreasing the drive current to the af- fected output stage and reducing the output current to a value depen- dent on supply voltage (I OUT ≈ 2.4/VSUPPLY). If the fault condition is corrected, the output stage will return to its normal saturated condition. Due to the independent operation of the four channels, only a single channel should be shorted at a time. Multiple overload conditions may be tolerated provided rated package power dissipation is not exceeded. NORMAL LOAD TIME Dwg. WP-013-1 NOT TO SCALE OUTPUT CURRENT CURRENT LIMIT (12 V SUPPLY) SHORT CIRCUIT CURRENT LIMIT (24 V SUPPLY)

NOTES: 1. Exact body and lead configuration at vendor ’s option within limits shown. 2. Lead spacing tolerance is non-cumulative 3. Lead thickness is measured at seating plane or below. 4. Webbed lead frame. Leads 4, 5, 12, and 13 are internally one piece. UDN2543B and UDQ2543B Dimensions in Inches (controlling dimensions) Dimensions in Millimeters (for reference only) 0.020 0.008 0.300 BSC Dwg. MA-001-17A in 0.430 MAX 1 8 0.280 0.240 0.210 MAX 0.070 0.045 0.015 MIN 0.022 0.014 0.100 BSC 0.005 MIN 0.150 0.115 0.775 0.735 NOTE 4 0.508 0.204 7.62 BSC Dwg. MA-001-17A mm 10.92 MAX 1 8 7.11 6.10 5.33 MAX 1.77 1.15 0.39 MIN 0.558 0.356 2.54 BSC 0.13 MIN 3.81 2.93 19.68 18.67 NOTE 4

Worcester, Massachusetts 01615-0036 (508) 853-5000 UDN2543EB and UDQ2543EB Dimensions in Inches (controlling dimensions) Dimensions in Millimeters (for reference only) NOTES: 1. Exact body and lead configuration at vendor ’s option within limits shown. 2. Lead spacing tolerance is non-cumulative 3. Webbed lead frame. Leads 5 through 11 and 19 through 25 are internally one piece. 18 12 0.020 MIN 0.050 BSC 128 INDEX AREA Dwg. MA-005-28A in 0.026 0.032 0.013 0.021 19 11 0.165 0.180 0.495 0.485 0.456 0.450 0.495 0.485 0.456 0.450 0.219 0.191 0.219 0.191 0.51 MIN 4.57 4.20 1.27 BSC 12.57 12.32 11.582 11.430 128 INDEX AREA Dwg. MA-005-28A mm 0.812 0.661 0.331 0.533 12.57 12.32 18 12 11.58 11.43 5.56 4.85 5.56 4.85

The products described here are manufactured under one or more 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 responsi- bility for its use; nor for any infringement of patents or other rights of third parties which may result from its use.

Worcester, Massachusetts 01615-0036 (508) 853-5000 POWER SINK DRIVERS IN ORDER OF 1) OUTPUT CURRENT, 2) OUTPUT VOLTAGE, 3) NUMBER OF DRIVERS Output Ratings * Features Serial Latched Diode Internal mA V # Input Drivers Clamp Outputs Protection Part Number † 75 17 8 X X – constant current – 6275 17 16 X X – constant current – 6276 100 20 8 – – – saturated – 2595 30 32X X – – – 5833 40 32X X – saturated – 5832 50 8 addressable decoder/driver DMOS – 6B259 50 8 – X – DMOS – 6B273 50 8 X X – DMOS – 6B595 250 50 8 addressable decoder/driver DMOS – 6259 50 8 – X – DMOS – 6273 50 8 X X – DMOS – 6595 135 7 – – X – – 7003 300 45 1 – Hall sensor/driver X – X 5140 50 7 – – X – – 2003 50 8 – – X – – 2803 50 8 – – X saturated – 2596 60 4 – – X saturated X 2557 95 7 – – X – – 2023 95 8 – – X – – 2823 350 50 4 – X X – – 5800 50 7 – – X – – 2004 50 8 – – X – – 2804 50 8 – X X – – 5801 50 8 X X – – – 5821 50 8 X X X – – 5841 50 8 addressable decoder/driver DMOS – 6A259 50 8 X X – DMOS – 6A595 80 8 X X – – – 5822 80 8 X X X – – 5842 95 7 – – X – – 2024 95 8 – – X – – 2824 450 30 28 dual 4- to 14-line decoder/driver – – 6817 600 60 4 – – – saturated X 2547 60 4 – – X saturated X 2549 700 60 4 – – X saturated X 2543 and 2559 750 50 8 – – X saturated – 2597 900 14 2– Hall sensor/driver X saturated X 362 5 26 2 – Hall sensor/driver X saturated X 3626 1000 46 4 stepper motor controller/driver MOS – 7024 and 7029 1200 46 4 microstepping controller/driver MOS – 7042 1250 50 4 stepper motor translator/driver – X 5804 50 4 – – X – – 2064 and 2068 1500 80 4 – – X – – 2065 and 2069 1800 50 4 – – X – – 2544 50 4 – – X – – 2540 3000 46 4 stepper motor controller/driver MOS – 7026 46 4 microstepping controller/driver MOS – 7044 4000 50 4 – – X – – 2878 80 4 – – X – – 2879 * 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.