A6261KLYTR-T datasheet(2/15 Pages) ALLEGRO

Part #	A6261KLYTR-T

Description	The A6261 is a linear, programmable current regulator providing up to 100 mA from each of four outputs to drive arrays of high brightness LEDs.

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Manufacturer	ALLEGRO [Allegro MicroSystems]

Direct Link	http://www.allegromicro.com

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2 / 15 page

Protected LED Array Driver

A6261

2

Allegro MicroSystems, Inc.

115 Northeast Cutoff

Worcester, Massachusetts 01615-0036 U.S.A.

1.508.853.5000; www.allegromicro.com

Absolute Maximum Ratings1

Characteristic

Symbol

Notes

Rating

Unit

Load Supply Voltage

VIN

–0.3 to 50

V

Pin EN

–0.3 to 50

V

Pins LA[1:4]

–0.3 to 50

V

Pin FF

–0.3 to 50

V

Pins IREF, THTH

–0.3 to 6.5

V

Ambient Operating Temperature

Range2

TA

E temperature range

–40 to 85

°C

K temperature range

–40 to 125

°C

Maximum Continuous Junction

Temperature

TJ(max)

150

°C

Transient Junction Temperature

TtJ

Over temperature event not exceeding 10 s, lifetime duration

not exceeding 10 h, guaranteed by design characterization

175

°C

Storage Temperature Range

Tstg

–55 to 150

°C

1With respect to GND.

2Limited by power dissipation.

Selection Guide

Part Number

Ambient Operating

Temperature, TA (°C)

Packing

Package

A6261ELPTR-T

–40 to 85

4000 pieces per 13-in. reel

16-pin TSSOP with exposed thermal pad,

4.4 × 5 mm case

A6261KLPTR-T

–40 to 125

4000 pieces per 13-in. reel

A6261KLYTR-T

–40 to 125

4000 pieces per 13-in. reel

10-pin MSOP with exposed thermal pad,

3 × 3 mm case

Thermal Characteristics*may require derating at maximum conditions, see application information

Characteristic

Symbol

Test Conditions*

Value

Unit

Package Thermal Resistance

(Junction to Ambient)

RθJA

LP package

On 4-layer PCB based on JEDEC standard

34

ºC/W

On 2-layer PCB with 3.8 in.2 of copper area each side

43

ºC/W

LY package

On 4-layer PCB based on JEDEC standard

48

ºC/W

On 2-layer PCB with 2.5 in.2 of copper area each side

48

ºC/W

Package Thermal Resistance

(Junction to Pad)

RθJP

2

ºC/W

*To be verified by characterization. Additional thermal information available on the Allegro® website.

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