2540

2540 ALLEGRO

Document overview

• Manufacturer or author: Provided By www.digicamel.com(FREE DATASHEET DOWNLOAD SITE)
• PDF pages: 8

Technical content

Combining AND logic gates and inverting high-current bipolar outputs, the UDN2540B and A2540SLB quad Darlington power drivers provide interface between low-level signal-processing circuits and power loads totaling 360 W. Each of the four independent outputs can sink up to 1.8 A in the on state with peak inrush currents to 2.5 A. The four power outputs are each comprised of an open-collector Darlington driver and an internal flyback/clamp diode for switching inductive leads. They feature a minimum breakdown and sustaining voltage of 50 V. The logic inputs are compatible with TTL and 5 V CMOS logic systems. Typical applications include print heads, relays, solenoids, and dc stepping motors. These drivers can also be used to drive high- current incandescent lamps, LEDS, and heaters. A similar device, specifically intended for driving a unipolar stepper motor in the two-phase drive format, is the UDN2544B. The UDN2540B is supplied in a 16-pin batwing power DIP; the A2540SLB is supplied in a 20-lead batwing power SOIC for surface- mount applications. The batwing construction provides for maximum package power dissipation in a standard construction. At 25 °C, and with only 1 sq. in. of copper foil at the ground tabs, either package is capable of safely dissipating more than 2 W.

FEATURES

I 1.8 A Continuous Output Current I Output Voltage to 50 V I TTL and 5 V CMOS Compatible Inputs I Efficient Input/Output Pinning I Integral Transient-Suppression Diodes I Replaces L6221A and L6221CD Data Sheet 29317C UDN2540B ABSOLUTE MAXIMUM RATINGS at TA = 25°C Package Power Dissipation, Operating Temperature Range, Storage Temperature Range, 3 14 8 9 ENABLE GROUND GROUND OUT K GROUND GROUND OUT3 OUT4 K OUT1 V CC IN 1 Dwg. PP-017-2 IN4 IN3 IN 2 Always order by complete part number: Part Number Package UDN2540B 16-pin batwing DIP A2540SLB 20-lead batwing SOIC 2540

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000 2540 QUAD DARLINGTON POWER DRIVER TRUTH TABLE ENABLE IN N OUTN HH O N — L OFF L X OFF X = Don’t care. ENABLE GROUND GROUND OUT2 K GROUND GROUND OUT3 OUT4 K OUT1 VCC IN 1 IN 2 IN4 IN3 NO CONNECTION NO CONNECTION NCNC Dwg. PP-017-3 NO CONNECTION NO CONNECTION NCNC SUPPLY A2540SLB 50 75 100 125 150 ALLOWABLE PACKAGE POWER DISSIPATION IN WATTSTEMPERATURE IN °C Dwg. GP-049-3 R = 6.0°C/WθJT SUFFIX 'B', R = 43°C/WθJA SUFFIX 'LB', R = 60°C/WθJA Copyright © 1986, 1996 Allegro MicroSystems, Inc.

www.allegromicro.com Limits Characteristic Symbol Test Conditions Min. Typ. Max. Units Output Leakage Current I CEX VOUT = 50 V, VIN = 0.8 V, VEN = 2.4 V — <1.0 100 µA VOUT = 50 V, VIN = 2.4 V, VEN = 0.8 V — <1.0 100 µA Output Sustaining Voltage V CE(sus) IOUT = 1.8 A, L = 3.0 mH 50 —— V Output Saturation Voltage V CE(SAT) IOUT = 600 mA, VIN = VEN = 2.4 V — 0.9 1.0 V IOUT = 1.0 A, VIN = VEN = 2.4 V — 1.0 1.2 V IOUT = 1.8 A, VIN = VEN = 2.4 V — 1.3 1.6 V Input Voltage Logic 1 V IN(1) or VEN(1) 2.4 —— V Logic 0 V lN(0) or VEN(0) —— 0.8 V Input Current Logic 1 V IN(1) or VEN(1) = 2.4 V —— 10 µA Logic 0 V lN(0) or VEN(0) = 0.8 V —— -100 µA Total Supply Current I CC VIN* = VEN = 2.4 V, VCC = 5.0 V, — 14 20 mA Outputs Open V IN* = VEN = 0.8 V, VCC = 5.0 V — 0.4 2.0 mA Clamp Diode Forward Voltage V F IF = 1.0 A — 1.3 1.6 V IF = 1.8 A — 1.6 2.0 V Clamp Diode Leakage Current I R VR = 50 V — <1.0 100 µA Typical Data is for design information only. 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. *All inputs simultaneously, all other tests are performed with each input tested separately. ELECTRICAL CHARACTERISTICS at TA = 25°C, TJ ≤ 150°C, VCC = 4.75 V to 5.25 V.

Worcester, Massachusetts 01615-0036 (508) 853-5000 2540 QUAD DARLINGTON POWER DRIVER APPLICATIONS INFORMATION A typical application is shown for driving four high-current relays, solenoids, or print heads. A Zener diode is used to increase the flyback voltage, providing a much faster inductive load turn-off current decay, resulting in faster dropout (reduced relay contact arcing), and improved performance. The maximum Zener voltage, plus the load supply voltage, plus the flyback diode forward voltage must not exceed the device’s rated sustaining voltage. With external control circuitry, the ENABLE input can be used for chopper (PWM) applications. If the ENABLE input is not used, it should be tied high. All inputs will float high if open circuited. Dwg. WP-001 TYPICAL APPLICATION (QUAD RELAY DRIVER WITH ZENER FLYBACK) Dwg. EP-016 +5V 4IN ENABLE IN3 IN IN 1 +28 V K K 15V OUTPUT VOLTAGE OUTPUT CURRENT ZENER CLAMP DIODE CLAMP VCC VCE(SAT) I OUT I CEX V + VCC F V + V + VCC Z F

www.allegromicro.com NOTES: 1. Leads 1, 8, 9, and 16 may be half leads at vendor’s option. 2. Lead thickness is measured at seating plane or below. 3. Lead spacing tolerance is non-cumulative. 4. Webbed lead frame. Leads indicated are internally one piece. 5. Exact body and lead configuration at vendor’s option within limits shown. 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 UDN2540B Dimensions in Inches (controlling dimensions) 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 2540 QUAD DARLINGTON POWER DRIVER NOTES: 1. Webbed lead frame. Leads 5, 6, 15, and 16 are internally one piece. 2. Lead spacing tolerance is non-cumulative. 3. Exact body and lead configuration at vendor’s option within limits shown. 0° TO 8° 2 30.51 0.33 0.10 MIN. Dwg. MA-008-21A mm 1.27 BSC 0.32 0.23 1.27 0.40NOTE 1 NOTE 3 7.60 7.40 10.65 10.00 13.00 12.602.65 2.35 A2540SLB Dimensions in Inches (for reference only) 0° TO 8° 1 2 30.020 0.013 0.0040 MIN. 0.0125 0.0091 0.050 0.016 Dwg. MA-008-21A in 0.050 BSC 20 11 NOTE 1 NOTE 3 0.2992 0.2914 0.419 0.394 0.5118 0.49610.0926 0.1043 Dimensions in Millimeters (controlling dimensions)

www.allegromicro.com 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 2540 QUAD DARLINGTON POWER DRIVER 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 8X X – constant current – 6275 17 16 X X – constant current – 6276 100 20 8– – – saturated – 2595 30 32 X X – – – 5833 40 32 X X – saturated – 5832 50 8addressable decoder/driver DMOS – 6B259 50 8– X – DMOS – 6B273 50 8X X – DMOS – 6B595 250 50 8addressable decoder/driver DMOS – 6259 50 8– X – DMOS – 6273 50 8X X – DMOS – 6595 135 7 – – X – – 7003 300 45 1 – Hall sensor/driver X – X 5140 50 7 – – X – – 2003 50 8– – X – – 28 03 50 8– – X saturated – 2596 60 4 – – X saturated X 2557 95 7 – – X – – 2023 95 8– – X – – 28 23 350 50 4 – X X – – 5800 50 7 – – X – – 2004 50 8– – X – – 28 04 50 8– X X – – 58 01 50 8X X – – – 58 21 50 8X X X – – 58 41 50 8addressable decoder/driver DMOS – 6A259 50 8X X – DMOS – 6A595 80 8 X X – – – 5822 80 8 X X X – – 5842 95 7 – – X – – 2024 95 8– – X – – 28 24 450 30 28dual 4- to 14-line decoder/driver – – 68 17 600 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 3625 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.