Allegro UDN2559LB, UDN2559EB, UDN2559B, UDQ2559LB, UDQ2559EB Datasheet

UDx2559LB

1

UDx2559B

Data Sheet

29317.14A

2559

PROTECTED

QUAD POWER DRIVER

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.

16

Each of the four outputs will 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.

OUT

OUT

GROUND

GROUND

OUT

OUT

1

4

2

K

3

3

4

5

6

2

7

K

8

1

16

IN

15

IN

14

ENABLE

13

GROUND

12

GROUND

V

11

CC

10

IN

IN

9

Dwg. PP-017-1

4

3

2

1

ABSOLUTE MAXIMUM RATINGS

at TA = 25°C

Output Voltage, V
Over-Current Protected Output Voltage,

V

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

OUT

Output Current, I

Supply Voltage, VCC .. . . . . . . . . 7.0 V

Input Voltage, VIN or V
Package Power Dissipation,

PD . . . . . . . . . . . . . . . . See Graph

Operating Temperature Range, T

Prefix ‘UDK’ . . . . -40°C to +125°C

Prefix ‘UDN’ . . . . . -20°C to +85°C

Prefix ‘UDQ’ . . . . . -40°C to +85°C

Storage Temperature Range,

TS . . . . . . . . . . . . -55°C to +150°C

*Outputs are peak current limited at
approximately 1.0 A per driver. See
Circuit Description and Application for
further information.

. . . . . . . . . 60 V

OUT

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

OUT

. . . . . . 7.0 V

EN

A

Over-current 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 short­circuit 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 suffix ‘B’ devices are 16-pin power DIPs, the suffix ‘EB’
devices are 28-lead power PLCCs and suffix ‘LB’ devices are 16-lead
power SOICs for surface-mount applications. All three packages are
of batwing construction to provide for maximum package power
dissipation.

FEATURES

■ 700 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 UDQ2543B/EB and UDK2549B/EB

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., UDK2559LB .

2559

PROTECTED
QUAD POWER DRIVER

FUNCTIONAL BLOCK DIAGRAM

(1 of 4 Channels)

GROUND

GROUND

ENABLE

5

6

7

8

9

10

11

IN

N

UDx2559EB

2

OUT

4

12

3

OUT

1

OUT

NO

K

2

14

4

OUT

1

NC

NC

15

NO

3

13

K

1

IN

CONNECTION

28

16

4

IN

CONNECTION

V

CC

K

OUT

N

THERMAL

LIMIT

<<1 Ω

Dwg. FP-041

5

2

ENABLE

IN

26

27

GROUND

25

24

23

22

21

20

GROUND

19

V

CC

18

17

3

IN

SUPPLY

Dwg. PP-019-1

4

SUFFIX 'EB', R = 36°C/W

θJA

3

SUFFIX 'B', R = 43°C/W

2

1

SUFFIX 'LB', R = 63°C/W

0

25

ALLOWABLE PACKAGE POWER DISSIPATION IN WATTS

PD = (V

50 75 100 125 150

TEMPERATURE IN °C

OUT1

x I

x dc) + … + (V

OUT1

+ (VCC x ICC) = (TJ - TA)/R

R = 6°C/W

θJT

θJA

θJA

θJA

OUTn

x I

Dwg. GP-004-2A

x dc)

OUTn

115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 [phone]

Copyright © 1995, 2000 Allegro MicroSystems, Inc.

2559

PROTECTED

QUAD POWER DRIVER

ELECTRICAL CHARACTERISTICS at TA = +25°C (prefix ‘UDN’) or over operating
temperature range (prefix ‘UDK’ or ‘UDQ’), VCC = 4.75 V to 5.25 V

Limits

Characteristic Symbol Test Conditions Min. Typ. Max. Units

Output Leakage Current I

Output Sustaining Voltage V

Output Saturation Voltage V

Over-Current Trip I

CEX

OUT(SUS)

OUT(SAT)

TRIP

Input Voltage Logic 1 V

Logic 0 V

Input Current Logic 1 V

Logic 0 V

Total Supply Current I

CC

V

= 50 V, VIN = 0.8 V, VEN = 2.0 V — <1.0 100 µA

OUT

V

= 50 V, VIN = 2.0 V, VEN = 0.8 V — <1.0 100 µA

OUT

I

= 100 mA, VIN = VEN = 0.8 V 40 —— V

OUT

All Devices, I

All Devices, I

‘B’ & ‘EB’ Packages Only, I

= 100 mA ——300 mV

OUT

= 400 mA ——500 mV

OUT

= 600 mA ——700 mV

OUT

— 1.0 — A

IN(1)

IN(0)

IN(1)

IN(0)

or V

or V

or V

or V

EN(1)

EN(0)

= 2.0 V ——40 µA

EN(1)

= 0.8 V ——-10 µA

EN(0)

2.0 —— V

——0.8 V

All Outputs ON, VIN* = VEN = 2.0 V ——80 mA

All Outputs OFF ——5.0 mA

Clamp Diode Forward Voltage V

Clamp Diode Leakage Current I

Turn-On Delay t

t

Thermal Limit T

F

R

PHL

PLH

J

IF = 1.0 A ——1.7 V

I

= 1.5 A ——2.1 V

F

VR = 50 V, D1 + D2 or D3 + D

I

= 500 mA ——20 µs

OUT

I

= 500 mA ——20 µs

OUT

4

——50 µA

— 165 — °C

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.

www.allegromicro.com