Datasheet > MPQ3386DR

MPQ3386DR

更新时间： 2022-02-26 12:03:46

品牌	Logo	应用领域
芯源 - MPS		/
页数	文件大小	规格书
15页	593K
描述
50V, 6 String White LED Driver AEC-Q100 Qualified

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MPQ3386DR 数据手册

MPQ3386-AEC1

50V, 6 String White LED Driver

AEC-Q100 Qualified

DESCRIPTION

FEATURES

The MPQ3386 is a step-up converter with 6-

channel current sources designed for driving the

white LED arrays for large size LCD panel

backlighting applications.

•

Guaranteed Industrial/Automotive Temp

Range Limits

•

4.5V to 25V Input Voltage Range

50V Maximum Step-up Voltage

Balanced Driver for 6 Strings of WLED

3% Current Matching Accuracy Between

Strings

Selectable Switching Frequency: 1.25MHz or

625kHz

PWM or DC Input Burst PWM Dimming

Programmable Over-voltage Protection

Threshold

Under Voltage Lockout

Open and Short LED Protection

Thermal Shutdown

Small QFN24 (4x4mm) Package

Available in AEC-Q100 Qualified Grade 1

The MPQ3386 uses current mode, fixed frequency

architecture. The switching frequency can be

selected at 1.25MHz or 625kHz. It generates an

output voltage up to 50V from a 4.5V to 25V input

supply. The MPQ3386 regulates the current in

each LED string to the user programmed value set

by an external current setting resistor.

•

The MPQ3386 applies 6 internal current sources

in each LED string terminal to get current

balance. And the current matching achieves 3%

regulation accuracy between strings. Its low

600mV regulation voltage on LED current sources

reduces power loss and improves efficiency.

•

The MPQ3386 features external PWM dimming

or DC input PWM dimming, which allows the

flexible control of the backlighting luminance

under wide range of the ambient brightness, and

also avoids the possibility of PWM dimming

audible noise. The dimming PWM signal can be

generated internally, and the dimming frequency

is programmed by an external setting capacitor.

APPLICATIONS

•

Notebook & Netbook PC

Small LCD TV

Portable Terminals Display

Automotive System and Tablet Computer

All MPS parts are lead-free and adhere to the RoHS directive. For MPS green

status, please visit MPS website under Products, Quality Assurance page.

“MPS” and “The Future of Analog IC Technology” are registered trademarks of

Monolithic Power Systems, Inc.

TYPICAL APPLICATION

MPQ3386 Rev. 1.0

5/24/2016

www.MonolithicPower.com

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

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