A8603KESTR-R datasheet(5/42 Pages) ALLEGRO

部件名	A8603KESTR-R

功能描述	Multiple-Output Regulator for Automotive LCD Displays

PDF	42 Pages

Scroll/Zoom	100%

制造商	ALLEGRO [Allegro MicroSystems]

网页	http://www.allegromicro.com

标志

5 / 42 page

Multiple-Output Regulator for

Automotive LCD Displays

A8603

Allegro MicroSystems, LLC

115 Northeast Cutoff

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

1.508.853.5000; www.allegromicro.com

Functional Block Diagram

VIN

(3 to 10 V)

VOUT

PGND

OUT

AVDD

LDO

Boost

Control

VIN

BIAS

FSET/SYNC

COMP

AGND

Ext. Sync.

Ext. Enable

Enable

2.8 V

BIAS

Regulator

Osc with

Dithering

Enable

AVDD_ON

VCOM_ON

VGH_OFF

VGL_OFF

VGH_ON

VGL_ON

Enable

I C

Interface

Bank

VGL/VGH

Interlock

D2A

Converters

Regulation

Targets

Ref 1–4

SDA

SCL

ADDR

BIAS

FSET

VIN

FAULT

Fault

OVP

UVP

OCP

TSD

...

VGL

VGL > 90%

VGH

VGH < 30%

Ref3

OFF

Inverter

Charge

Pump

Using 2 External

Diodes

VGL

CP22

CP21

VGL

–12 V

VGL

CP22

CP21

VGL

–8 V

Optional 3× Conﬁguration

VGH3

VGH

CP12

CP11

VGH (3×)

27 V

Ref4

OFF

VGH3

VGH

CP12

CP11

VGH (2×)

18 V

2×/3×

Charge

Pump

GNDVCOM

VCOM

3 to 7.5 V

Ref2

Ref1

AVDD

10 V

(Output voltages shown

for typical LCD panel.)

A8603KESTR-R 数据表(PDF) 5 Page - Allegro MicroSystems

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