RT6908 datasheet(1/22 Pages) RICHTEK

Part #	RT6908

Description	PMIC for TFT LCD TV Panels

PDF	22 Pages

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Manufacturer	RICHTEK [Richtek Technology Corporation]

Direct Link	http://www.richtek.com

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RT6908

®

DS6908-01

March 2013

www.richtek.com

Copyright

is a registered trademark of Richtek Technology Corporation.

©

1

Pin Configurations

(TOP VIEW)

WQFN-40L 5x5

Ordering Information

Note :

Richtek products are :

RoHS compliant and compatible with the current require-

ments of IPC/JEDEC J-STD-020.

Suitable for use in SnPb or Pb-free soldering processes.

General Description

The RT6908 provides a complete set of programmable

multi-functional power solution for TFT LCD panel. The

RT6908 contains a step-up converter for main power and

step-down controllers to provide the logic voltages for the

system. Moreover, a positive charge pump regulator

provides the adjustable gate-high voltage, VGH; a negative

charge pump regulator provides the gate-low voltage, VGL.

AVDD, VGH and VGL outputs and power sequence can be

programmable through I2C interface.

With its high current capabilities, the device is ideal for

large screen monitor panels and LCD TV applications with

12V supply voltage. The RT6908 is available in a WQFN-

40L 5x5 package.

PMIC for TFT LCD TV Panels

Applications

TFT LCD TV Panel

Features

9V to 16V Input Supply Voltage

4.4A Boost Regulator for AVDD with 12.7V to 19V

Programmable Output

1-CH Sync. Buck Converter for VI/O

1-CH Sync. Buck Controller for VCORE

Negative Charge Pump Regulator for VGL with

−−−−−8.1V to −−−−−1.8V Programmable Output

Positive Charge Pump Regulator for VGH with 24.5V

to 40V Programmable Output

Programmable Sequencing

Voltage Detection Output

Over Temperature Protection

I2C Compatible Interface for Register Control

Thin 40-Lead WQFN Package

RoHS Compliant and Halogen Free

RT6908

Package Type

QW : WQFN-40L 5x5 (W-Type)

Lead Plating System

Z : ECO (Ecological Element with

Halogen Free and Pb free)

Marking Information

PGND

RSTB

COMP1

LXI

GD

AVDD

VDET

SDA

SCL

FBB1

BOOT2

NC

DHB2

DRVN

CRST

COMP2

FBB2

DLB2

ILIMIT2

LXB2

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41

PGND

RT6908ZQW : Product Number

YMDNN : Date Code

RT6908

ZQW

YMDNN

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