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  4. MP3371 8-channel, synchronous, 50V boost WLED driver with I2C interface (Monolithic Power Systems, Inc.)
MP3371 8-channel, synchronous, 50V boost WLED driver with I2C interface-MP3371
MP3371 8-channel, synchronous, 50V boost WLED driver with I2C interface-Monolithic Power Systems, Inc.

MP3371 8-channel, synchronous, 50V boost WLED driver with I2C interface
Monolithic Power Systems, Inc.

About This Product

■Summary

The MP3371 is a synchronous boost converter with eight current channels designed to drive white LED arrays for LCD panels in tablet and notebook backlight applications. The MP3371 uses peak current control mode and pulse width modulation (PWM) control to maintain regulation of the boost converter. The MP3371 adopts a standard I2C digital interface to set the operating mode, switching frequency, full-scale current of each channel, synchronous or asynchronous mode, dimming mode and duty, and various protection thresholds. The MP3371 has high efficiency due to low headroom voltage for LED regulation and low on-resistance of the switching MOSFET. Synchronous rectifiers save PCB size and total BOM cost. The MP3371 is available in a QFN-24 (4mm x 4mm) package.

■Advantages

・Save BOM cost and PCB size with advanced integration ・Various dimming methods and excellent dimming performance (10,000:1 dimming ratio at 100Hz) ・LED open/short circuit, inductor/diode short circuit, OTP, adjacent pin short protection ・Flexible application using I2C ・Reduction of audible noise by phase shift ・Auto switching function to increase efficiency during light loads (MP3372)

■Features and benefits

・8 channels, maximum 50mA, 45V output voltage, I2C interface ・Input voltage from 3V to 30V ・Up to 2.5% current matching ・A1 pin for 2PCS IC selection - Automatically disable unused LED strings at startup ・Adjacent pin short circuit test possible ・Provided in QFN-24 (4mm x 4mm) package ・10,000:1 PWM dimming ratio at 100Hz ・fSW selectable from 350kHz to 2.4MHz ・Selectable synchronous or asynchronous mode ・Analog and mixed dimming ・Linear and smooth dimming slope setting ・Phase shift function (MP3372) ・LED short/open, OTP, and OCP protection

■Available product numbers

・MP3371GR-xxxx-P MP3371GR-xxxx-Z ・Part numbers ending in P and Z are the same part. P and Z indicate reel size only

  • Product

    MP3371 8-channel, synchronous, 50V boost WLED driver with I2C interface

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1 Models of MP3371 8-channel, synchronous, 50V boost WLED driver with I2C interface

Image Part Number Price (excluding tax) Channels Dimming (Output) Ichannel (max) (A) Iq (mA) Ishutdown (µA) Isw Limit (A) LEDx ABS Voltage (V) Power MOSFET Rds (on) (mΩ) Topology Typical LCD Screen Sizes Vout (max) (V) Fsw (max) (kHz) Fsw (min) (kHz) Grade Package (mm) Input voltage (max) (V) Input voltage (min) (V)
MP3371 8-channel, synchronous, 50V boost WLED driver with I2C interface-Part Number-MP3371

MP3371

Available upon quote

8

P-Dim, A-Dim, Mix-Dim

0.05

3.2

1

2.5

50

Integrated

235HS155LS

Boost

Small (<10") , Medium (10" to 17")

45

1,200

350

Catalog

QFN-24 (4x4)

30

2.7

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About Company Handling This Product

Monolithic Power Systems, Inc.

Company Overview

Monolithic Power Systems (MPS), founded in 1997 and headquartered in San Jose, California, is a manufacturer o...

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