Datasheet UDN2559LB, UDN2559EB, UDN2559B, UDQ2559LB, UDQ2559EB Datasheet (Allegro)

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UDx2559LB

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.

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

GROUND

OUT

ENABLE

GROUND

Dwg. PP-017-1

ABSOLUTE MAXIMUM RATINGS

at TA = 25°C

Output Voltage, V Over-Current Protected Output Voltage,

. . . . . . . . . . . . . . . . . . . 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

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 .

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2559

PROTECTED QUAD POWER DRIVER

FUNCTIONAL BLOCK DIAGRAM

(1 of 4 Channels)

GROUND

ENABLE

UDx2559EB

OUT

CONNECTION

OUT

THERMAL

LIMIT

<<1 Ω

Dwg. FP-041

ENABLE

GROUND

SUPPLY

Dwg. PP-019-1

SUFFIX 'EB', R = 36°C/W

θJA

SUFFIX 'B', R = 43°C/W

SUFFIX 'LB', R = 63°C/W

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

OUTn

x I

Dwg. GP-004-2A

x dc)

OUTn

115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000

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2559

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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

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

OUT

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

OUT

= 100 mA, VIN = VEN = 0.8 V 40 —— V

OUT

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

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

Thermal Limit T

PHL

PLH

IF = 1.0 A ——1.7 V

= 1.5 A ——2.1 V

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

= 500 mA ——20 µs

OUT

= 500 mA ——20 µs

OUT

——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.

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TYPICAL OUTPUT

CHARACTERISTIC

THERMAL

GRADIENT

SENSING

NOT TO SCALE

OUT

T = 165°C

JUNCTION

OUTPUT VOLTAGE, V

TEMP. LIMIT

T < 150°C

OUT(SAT)

OUTPUT CURRENT, I

TYPICAL OUTPUT BEHAVIOR

NORMAL LAMP IN-RUSH CURRENT

TRIP

Dwg. GP-013

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 current-limiting resistors protect both driver and lamp but use significant power either when the lamp is OFF or when the lamp is ON, respectively. Lamps with steady-state current ratings up to 700 mA can be driven by these devices without the need for warming (parallel) or current-limiting (series) resistors.

When an incandescent lamp is initially turned ON, the cold filament is at minimum resistance and would normally allow a 10x to 12x in-rush current. With these drivers, during turn-ON, the high in-rush current is sensed by the internal low-value sense resistor. Drive current to the output stage is then diverted by the shunting transistor, and the load current is momentarily limited to approximately 1.0 A. During this short transition period, the output current is reduced to a value dependent on supply voltage and filament resistance. During lamp warmup, the filament resistance increases to its maximum value, the output stage goes into saturation and applies maximum rated voltage to the lamp.

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.

LAMP CURRENT

For rapid current decay (fast turn-OFF speeds), the use of Zener diodes

NOT TO SCALE

will raise the flyback voltage and inprove performance. However, the peak voltage must not exceed the specified minimum sustaining voltage (V VZ + VF ≤ V

OUT(SUS)

SUPPLY

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 reduced, causing the output stage to go linear, limiting the peak output current to approximately 1 A. As the power dissipation of that

THERMAL GRADIENT SENSING

TRIP

CURRENT LIMIT

output stage increases, a thermal gradient sensing circuit will become operational, further decreasing the drive current to the affected output stage and reducing the output current to a value dependent on supply voltage and load resistance.

Continuous or multiple overload conditions causing the chip

TIM

Dwg. WP-008

temperature to reach approximately 165°C will result in an additional reduction in output current to maintain a safe level.

If the fault condition is corrected, the output stage will return to its normal saturated condition.

115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000

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0.280

0.240

UDx2559B

Dimensions in Inches

(controlling dimensions)

NOTE 4

2559

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QUAD POWER DRIVER

0.020

0.008

0.300

BSC

0.430

MAX

0.210

MAX

7.11

6.10

0.015

MIN

0.070

0.045

1.77

1.15

0.022

0.014

0.100

0.775

0.735

BSC

Dimensions in Millimeters

(for reference only)

NOTE 4

2.54

19.68

18.67

BSC

0.005

MIN

0.150

0.115

Dwg. MA-001-17A in

0.508

0.13

MIN

0.204

7.62

BSC

10.92

MAX

5.33

MAX

0.39

MIN

0.558

0.356

3.81

2.93

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.

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Dwg. MA-001-17A mm

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PROTECTED QUAD POWER DRIVER

UDx2559EB

Dimensions in Inches

(controlling dimensions)

18 12

0.219

0.191

0.219

0.191

0.013

0.021

0.050

BSC

0.331

0.533

0.020

MIN

0.165

0.180

0.026

0.032

0.456

0.450

0.495

0.485

Dimensions in Millimeters

(for reference only)

18 12

0.495

0.485

128

0.456

0.450

INDEX AREA

Dwg. MA-005-28A in

5.56

4.85

5.56

4.85

1.27

BSC

0.51

MIN

4.57

4.20

12.57

12.32

0.812

0.661

11.58

11.43

12.57

12.32

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 5–11, and 19–25 are internally one piece.

115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000

128

11.582

11.430

INDEX AREA

Dwg. MA-005-28A mm

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UDx2559LB

Dimensions in Inches

(for reference only)

2559

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QUAD POWER DRIVER

0.2992

0.2914

0.020

0.013

0.0926

0.1043

16 9

1 2

0.0040

MIN.

0.4133

0.3977

Dimensions in Millimeters

(controlling dimensions)

0.0125

0.0091

0.419

0.394

0.050

0.016

0.050

BSC

0° TO 8°

Dwg. MA-008-17A in

0.32

0.23

7.60

7.40

0.51

0.33

2.65

2.35

0.10

MIN.

10.50

10.10

1.27

BSC

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 4, 5, 12, and 13 are internally one piece.

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10.65

10.00

0° TO 8°

1.27

0.40

Dwg. MA-008-17A mm

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2559

PROTECTED 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.

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 responsibility for its use; nor for any infringement of patents or other rights of third parties which may result from its use.

115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000