Datasheet > MP3372

MP3372

更新时间： 2024-11-22 17:01:11

品牌	Logo	应用领域
芯源 - MPS		驱动驱动器
页数	文件大小	规格书
31页	1544K
描述
8 通道同步 50V 升压 WLED 驱动器，带 I2C 接口和相移功能

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MP3372 数据手册

MP3372

8-Channel, 50V Sync-Boost

WLED Driver with I²C Interface

o Mixed Dimming Mode through External

PWM Input with 6.25%, 12.5%, 25%, or

50% Transfer Point, 14-Bit PWM Duty

Resolution

DESCRIPTION

The MP3372 is a synchronous boost converter

with eight current channels designed to drive

WLED arrays for LCD panels in tablets and

notebook backlighting applications.

o Mixed Dimming Mode through the I²C

interface with 6.25%, 12.5%, 25%, or

50% Transfer Point,14-Bit PWM Duty

Resolution

The MP3372 uses peak current mode and

pulse-width modulation (PWM) control to

regulate the boost converter. The device

employs a standard I²C digital interface to set

the operation mode, switching frequency, full-

scale current, synchronous or asynchronous

mode, dimming mode and duty, and various

protection thresholds.



Phase Shift Function during PWM Dimming

(including PWM Dimming during Mixed

Dimming Mode)

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

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

Unused LED Strings Auto-Disabled at Start-

LED Short, Open, OTP, OCP, Inductor or

Diode Short Protection

o 2.5V, 5V, 7.5V, or 10V LED Short

Threshold



The MP3372 features high efficiency due to the

low headroom voltage for LED regulation and

the switching MOSFET’s small on resistance.

The synchronous rectifier saves PCB size and

total BOM cost.

o 24V, 31V, 38V, or 46V OVP Threshold

o 1.8A or 2.5A Current Limit

Cascade Function to Share Power Stage

Available in a QFN-24 (4mmx4mm)

Package

The MP3372 is available in a QFN-24

(4mmx4mm) package.



FEATURES



8 Channels with Maximum 50mA/Channel

Synchronous Converter with 50V LS-

FET/HS-FET with 150m/230mΩ On

Resistance

APPLICATIONS



Tablets/Notebooks

Automotive Displays



3V to 30V Input Voltage Range

Maximum 2.5% Current Matching

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

1.2MHz, 1.8MHz, or 2.4MHz Selectable

Switching Frequency

A1 Pins for Two I²C Addresses

0mA to 50mA Full-Scale LED Current, 8-Bit,

0.196mA/Step

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.



Selectable Synchronous or Asynchronous

Mode

Multi-Dimming Operation Mode, including:

o Analog Dimming through External PWM

Input, 10-Bit Resolution

o Analog Dimming through the I²C

Interface, 10-Bit Resolution

o PWM Dimming through External PWM

Input, 14-Bit Resolution

o PWM Dimming through the I²C Interface,

14-Bit Resolution

MP3372 Rev. 1.0

8/20/2020

www.MonolithicPower.com

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

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与MP3372相关器件

型号	品牌	获取价格	描述	数据表
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,
MP3378GF	MPS	获取价格	LED Driver,

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