Datasheet > MP3371

MP3371

更新时间： 2024-11-26 17:01:27

品牌	Logo	应用领域
芯源 - MPS		驱动驱动器
页数	文件大小	规格书
25页	1456K
描述
集成 I2C 接口的 8 通道同步 50V WLED 升压驱动器

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MP3371 数据手册

MP3371

8-Channel, Synchronous, 50V

Boost WLED Driver with I²C Interface

DESCRIPTION

FEATURES

The MP3371 is a synchronous boost converter

with eight current channels designed to drive

WLED arrays for LCD panels in tablets and

notebook backlighting applications.

 8 Channels with Max 50mA/Channel

 Synchronous Converter with 50V LS-FET/HS-

FET 155m/235mΩ On Resistance

 3V to 30V Input Voltage Range

 470mV LED Regulation Voltage at 20mA

 Max 2.5% Current Matching

 350kHz, 500kHz, 650kHz, 800kHz, 950kHz,

or 1.2MHz Selectable Switching Frequency

 A1 Pins for Two I²C Addresses

The MP3371 uses peak current control mode

and pulse-width modulation (PWM) control to

maintain boost converter regulation. The

MP3371 employs a standard I²C digital interface

to set the operation mode, switching frequency,

full-scale current for each channel, sync or non-

sync mode, dimming mode and duty, and

various protection thresholds.

 0mA to 50mA Full-Scale LED Current, 8 Bits,

0.196mA/Step

 Selectable Sync or Non-Sync Mode

 Multi-Dimming Operation Mode Including:

o Analog Dimming through External PWM

Input or I²C Interface, 10-Bit Resolution

o PWM Dimming through External PWM

Input or I²C Interface, 14-Bit Resolution

o Mixed Dimming Mode through External

PWM Input or I²C Interface with 6.25%,

12.5%, 25%, or 50% Transfer Point, 14-

Bit PWM Duty Resolution

The MP3371 features high efficiency due to low-

headroom voltage for LED regulation and a small

on resistance of the switching MOSFET. The

synchronous rectifier saves PCB size and total

BOM cost.

The MP3371 is available in a QFN-24

(4mmx4mm) package.

 Linear Smooth Dimming with 2µs, 4µs, 8µs,

16µs, 32µs, 64µs, or 128µs Step-Slope Set

 LED Short/Open, OTP, OCP, Inductor, or

Diode Short Protection

o 2.5V/5V/7.5V/10V LED Short Threshold

o 24V/31V/37.5V/45V OVP Threshold

o 1.8A/2.5A Current Limit

 Cascade Function to Share Power Stage

 Available in a QFN-24 (4mmx4mm) Package

APPLICATIONS

 Tablets/Notebooks

 Automotive Displays

All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive.

For MPS green status, please visit the MPS website under Quality

Assurance. “MPS”, the MPS logo, and “Simple, Easy Solutions” are

trademarks of Monolithic Power Systems, Inc. or its subsidiaries.

MP3371 Rev. 1.0

4/14/2020

www.MonolithicPower.com

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

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与MP3371相关器件

型号	品牌	获取价格	描述	数据表
MP3372	MPS	获取价格	8 通道同步 50V 升压 WLED 驱动器，带 I2C 接口和相移功能
MP3373	MPS	获取价格	8 路、每路 350mA、WLED 升压控制器，搭载移相和外部灌电流 BJT
MP3373GM	MPS	获取价格	LED Driver,
MP3373GM-C755	MPS	获取价格	LED Driver,
MP3373GY	MPS	获取价格	LED Driver
MP3376	MPS	获取价格	集成 I2C 接口的 8 路同步 WLED 升压驱动器
MP3376A	MPS	获取价格	集成 I2C 接口的 8 路同步 WLED 升压驱动器
MP3376AGR-XXXX-Z	MPS	获取价格	Switching Regulator,
MP3378	MPS	获取价格	4 路 WLED 控制器和高效率降压变换器
MP3378EGF	MPS	获取价格	LED Driver,

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