A6284-1 datasheet(9/24 Pages) ALLEGRO

Part #	A6284-1

Description	Linear Current Regulator and Controller for Automotive LED Arrays

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Manufacturer	ALLEGRO [Allegro MicroSystems]

Direct Link	http://www.allegromicro.com

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9 / 24 page

Linear Current Regulator and Controller

for Automotive LED Arrays

A6274, A6274-1

A6284, A6284-1

9

Allegro MicroSystems, LLC

115 Northeast Cutoff

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

1.508.853.5000; www.allegromicro.com

Figure 3: Typical Start Sequence with ENx

VIN

EN1 = EN 2

VBIAS

VOUT

FFn

VBIASSTART

VLEDx(NORMAL)

ILEDx(NORMAL)

ILEDx(DISABLED)

VLEDx(DISABLED)

ILEDx(TOTAL)

AB

CD

FULL MODE

DIM MODE

tLEDdet

EF

VLEDreg

ILEDsrc

VLEDx(NULL)

ILED(PEAK) total

ILEDsrc

ILED(PEAK) / Channel

> VLEDx(NULL)

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