Datasheet > MP1048EY-LF-Z

MP1048EY-LF-Z

更新时间： 2024-02-16 07:47:43

品牌	Logo	应用领域
芯源 - MPS		光电二极管
页数	文件大小	规格书
12页	216K
描述
Liquid Crystal Driver, 1-Segment, PDSO28, LEAD FREE, MO-013AE, SOIC-28

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MP1048EY-LF-Z 数据手册

MP1048

Full Bridge

CCFL Controller

The Future of Analog IC Technology

DESCRIPTION

FEATURES

The MP1048 is a fixed operating frequency

inverter controller that controls four external

N-Channel power MOSFETs in a full-bridge

configuration. The inverter is designed to power

up to 6 cold cathode fluorescent lamps (CCFLs)

to backlight liquid crystal displays. Its full-bridge

architecture converts unregulated DC input

voltages to the nearly pure sine waves required

to ignite and operate CCFLs.

•

Capable of Driving up to 6 Lamps

Controls Four External, Low Cost, N-Channel

MOSFETs

•

Fixed Operating Frequency

Input Voltage Range of 10V to 22V

Lamp Current and Voltage Regulation

Full-Wave Sense Amp

Analog and Burst Mode Dimming Control

Integrated Burst Mode Oscillator and Modulator

Soft-On and Soft-Off Burst Envelope

Open Lamp Protection

Secondary Over-Current Protection

Dual-Mode Fault Timer

Available in TSSOP28 and SOIC28 Packages

For reliable lamp ignition, the operating

frequency is set by an external resistor and

during startup is temporarily swept toward the

unloaded resonant frequency of the tank. Burst

mode or analog mode dimming are controlled

with an external analog signal. Built-in fault

management features include an open lamp

regulator, a transformer secondary peak current

regulator and a dual-mode fault timer. The

secondary over-current timeout can be

shortened with external components. The

MP1048 is available in TSSOP28 and SOIC28

packages.

APPLICATIONS

•

Desktop LCD Flat Panel Displays

Monitors

“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of

Monolithic Power Systems, Inc.

The MP1048 is covered by US Patents 6,683,422, 6,316,881, and 6,114,814.

Other Patents Pending.

TYPICAL APPLICATION

PGL

LGL

GND

VCCL

OUTL

UGL

COMP

BTL

LCS

LCC

BRC

BRS

DBRT

ABRT

PRL

PGR

LGR

VCCR

OUTR

UGR

BTR

DBRT

ABRT

PRR

MP1048 Rev. 0.9

9/24/2007

www.MonolithicPower.com

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

12 3 4 5 6 7...12

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