UDQ2559B Allegro Microsystems Inc, UDQ2559B Datasheet

UDQ2559B

Manufacturer Part Number

UDQ2559B

Description

Manufacturer

Allegro Microsystems Inc

Datasheet

1.UDQ2559B.pdf (8 pages)

Specifications of UDQ2559B

Operating Supply Voltage (typ)

Operating Temperature (min)

-40C

Operating Temperature (max)

85C

Operating Temperature Classification

Industrial

Package Type

PDIP

Pin Count

Mounting

Through Hole

Operating Supply Voltage (min)

4.75V

Operating Supply Voltage (max)

5.25V

Lead Free Status / Rohs Status

Not Compliant

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

UDQ2559B-T

Manufacturer:

THAILAND

Quantity:

6 218

Current page: 1 of 8
Download datasheet (485Kb)

Features and Benefits

▪ 700 mA output current per channel

▪ Independent overcurrent 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

Packages:

Not to scale

29317.14H

with exposed thermal tabs

(B package)

16-pin DIP

with internally fused pins

16-pin SOICW

(LB package)

(Package EB)

28-pin PLCC

Functional Block Diagram

(1 of 4 Channels)

Protected Quad Power Driver

Description

Providing improved output current limiting, the UDK,

UDN, and UDQ2559B, EB, and LB quad power drivers

combine AND logic gates and high-current bipolar outputs

with complete output protection. Each of the four outputs

sink 700 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.

Overcurrent protection for each channel has been designed

into 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, these devices will tolerate short circuits on all

outputs, simultaneously.

These devices can be used to drive various loads including

incandescent lamps (without warming or limiting resistors)

or inductive loads such as relays, solenoids, or dc stepping

motors.

The packages offer fused leads for enhanced thermal dissipation.

Package B is a 16-pin power DIP with exposed tabs, EB is a

28-lead power PLCC, and LB is a 16-lead power wide-body

SOIC for surface-mount applications. The lead (Pb) free

versions have 100% matte tin leadframe plating.

2559

Related parts for UDQ2559B

UDQ2559B Summary of contents

Page 1

... Protected Quad Power Driver Description Providing improved output current limiting, the UDK, UDN, and UDQ2559B, EB, and LB quad power drivers combine AND logic gates and high-current bipolar outputs with complete output protection. Each of the four outputs sink 700 mA in the on state. The outputs have a minimum breakdown voltage (load dump and a sustaining voltage ...

Page 2

... DIP, exposed tabs UDN2559EB-T Yes 28-lead PLCC UDN2559EBTR-T Yes 28-lead PLCC UDN2559LB-T Yes 16-lead SOIC UDN2559LBTR-T Yes 16-lead SOIC UDQ2559B-T Yes 16-pin DIP, exposed tabs UDQ2559LB-T Yes 16-lead SOIC UDQ2559LBTR-T Yes 16-lead SOIC UDK2559B – 16-pin DIP, exposed tabs UDK2559B-T ...

Page 3

Package B 1 OUT OUT 3 4 GROUND 5 GROUND OUT OUT 8 1 GROUND GROUND Protected Quad Power Driver Pin-out Diagrams ENABLE 13 ...

Page 4

Thermal Characteristics Characteristic Symbol Package Thermal Resistance *Additional thermal information available on the Allegro website Protected Quad Power Driver Test Conditions* Package B, 2-layer PCB with 0.5 in. R Package EB, 1-layer PCB ...

Page 5

ELECTRICAL CHARACTERISTICS at T temperature range (preﬁ x ‘UDK’ or ‘UDQ’), V 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 ...

Page 6

TYPICAL OUTPUT CHARACTERISTIC TYPICAL OUTPUT BEHAVIOR Protected Quad Power Driver CIRCUIT DESCRIPTION AND APPLICATION INCANDESCENT LAMP DRIVER High incandescent lamp turn-ON/in-rush currents can contribute to poor lamp reliability and destroy semiconductor lamp drivers. Warming or cur- rent-limiting resistors protect ...

Page 7

1.27 MIN +0.25 1.52 –0.38 with internally fused pins 5 through 11 and 19 through 25 12.45±0.13 11.51±0.08 0.74±0.08 28X 0.10 C 0.43±0.10 B Package, 16-pin DIP with internally fused pins 4, 5, 12, and ...

Page 8

16X 0.10 C 1.27 0.41 ±0.10 For Reference Only Pins 4 and 5, and 12 and 13 internally fused Dimensions in millimeters (reference ...

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