UDQ2549B Allegro MicroSystems, Inc., UDQ2549B Datasheet

UDQ2549B

Manufacturer Part Number

UDQ2549B

Description

Protected Quad Power Driver

Manufacturer

Allegro MicroSystems, Inc.

Datasheet

1.UDQ2549B.pdf (7 pages)

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Output Voltage, V

Over-Current Protected Output Voltage,

Output Current, I

Supply Voltage, V

Input Voltage, V

Package Power Dissipation,

Operating Temperature Range, T

Storage Temperature Range,

*Outputs are peak current limited at approximately

1.0 A per driver. See Circuit Description and

Applications for further information.

GROUND

OUT

Prefix ‘UDK’ . . . . . . .

Prefix ‘UDN’ . . . . . . . .

Prefix ‘UDQ’ . . . . . . . .

OUT

. . . . . . . . . . . . . . . . . . . . See Graph

. . . . . . . . . . . . . . . -55 C to +150 C

. . . . . . . . . . . . . . . . . . . . . . . 25 V

OUT

or V

. . . . . . . . . . . . . 1.0 A*

. . . . . . . . . . . . . . 7.0 V

. . . . . . . . . . . . . 60 V

. . . . . . . . . . 7.0 V

(DIP)

-40 C to +125 C

-20 C to +85 C

-40 C to +85 C

Dwg. PP-017-1

ENABLE

GROUND

2549

Always order by complete part number: a prefix to indicate operating

temperature range + the basic four-digit part number + a suffix to

indicate package style, e.g., UDK2549EB .

UDQ2549B and UDK/UDN/UDQ2549EB quad power drivers combine

AND logic gates and high-current bipolar outputs with complete output

protection. Each of the four outputs will sink 600 mA in the on state.

The outputs have a minimum breakdown voltage (load dump) of 60 V

and a sustaining voltage of 40 V. The inputs are compatible with TTL

and 5 V CMOS logic systems.

these devices and is activated at approximately 1 A. It protects each

output from short circuits with supply voltages up to 25 V. When an

output current trip point is reached, that output stage is driven linearly

resulting in a reduced output current level. If an over-current or short

circuit condition continues, the thermal limiting circuits will first sense

the rise in junction temperature and then the rise in chip temperature,

further decreasing the output current. Under worst-case conditions,

the six devices in this family will tolerate short-circuits on all outputs,

simultaneously.

incandescent lamps (without warming or limiting resistors) or inductive

loads such as relays, solenoids, or dc stepping motors.

devices are 28-lead power PLCCs for surface-mount applications.

Both packages are of batwing construction to provide for maximum

package power dissipation.

600 mA Output Current per Channel

Independent Over-Current Protection for Each Driver

Thermal Protection for Device and Each Driver

Low Output-Saturation Voltage

Integral Output Flyback Diodes

TTL and 5 V CMOS Compatible Inputs

Pin-Compatible With UDN2543B/EB

Providing improved output current limiting, the UDK/UDN/

Over-current protection for each channel has been designed into

These devices can be used to drive various loads including

The suffix ‘B’ devices are 16-pin power DIPs while the suffix ‘EB’

QUAD POWER DRIVER

PROTECTED

Related parts for UDQ2549B

UDQ2549B Summary of contents

Page 1

... A per driver. See Circuit Description and Applications for further information. 2549 Providing improved output current limiting, the UDK/UDN/ UDQ2549B and UDK/UDN/UDQ2549EB quad power drivers combine AND logic gates and high-current bipolar outputs with complete output protection. Each of the four outputs will sink 600 mA in the on state. IN ...

Page 2

... SUFFIX 'EB GROUND SUFFIX 'B Dwg. PP-019-1 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 Copyright © 1991, 2003 Allegro MicroSystems, Inc. K OUT N <<1 Dwg. FP-041 100 125 TEMPERATURE IN C Dwg. GP-004-1A ...

Page 3

Characteristic Output Leakage Current Output Sustaining Voltage Output Saturation Voltage Over-Current Trip Input Voltage Input Current Total Supply Current Clamp Diode Forward Voltage Clamp Diode Leakage Current Thermal Limit Typical Data is for design information only. Negative current is defined ...

Page 4

PROTECTED QUAD POWER DRIVER NOT TO SCALE T < 150 165 C J JUNCTION TEMP. LIMIT THERMAL GRADIENT SENSING V OUT(SAT) OUTPUT CURRENT, I OUT NORMAL LAMP IN-RUSH CURRENT NOT TO SCALE THERMAL GRADIENT SENSING ...

Page 5

MAX 0.015 MIN 16 7.11 6.10 1 1.77 1.15 5.33 MAX 0.39 MIN NOTES: 1. Exact body and lead configuration at vendor’s option within limits shown. 2. Lead spacing tolerance is non-cumulative 3. ...

Page 6

PROTECTED QUAD POWER DRIVER 0.013 0.021 0.219 0.191 0.050 BSC 0.219 0.191 0.331 0.533 5.56 4.85 1.27 BSC 5.56 4.85 NOTES: 1. Exact body and lead configuration at vendor’s option within limits shown. 2. Lead spacing tolerance is non-cumulative ...

Page 7

... QUAD POWER 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 ...

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