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  4. 3 Channel, Up to 38V Output, Linear/Exponential Analog Dimming, Step-Up White LED Driver with I2C MP3313 (Monolithic Power Systems, Inc.)
3 Channel, Up to 38V Output, Linear/Exponential Analog Dimming, Step-Up White LED Driver with I2C MP3313-MP3313
3 Channel, Up to 38V Output, Linear/Exponential Analog Dimming, Step-Up White LED Driver with I2C MP3313-Monolithic Power Systems, Inc.

3 Channel, Up to 38V Output, Linear/Exponential Analog Dimming, Step-Up White LED Driver with I2C MP3313
Monolithic Power Systems, Inc.

About This Product

■Summary

The MP3313 is a step-up, white LED converter. The MP3313 uses peak current mode and 3-channel current sink to regulate LED current up to 25mA (100mA in flash mode) on each channel at input voltages from 2.7 to 5.5V. The MP3313 integrates a 300mΩ, 42V MOSFET and supports selectable overvoltage protection (17/23/30/38V). The MP3313 can drive up to 10 LEDs in series for LCD panels larger than 5 inches. The MP3313 achieves ultra-high resolution analog dimming by converting a pulse width input signal or internal register code to an 11-bit brightness code. The MP3313 is designed with two types of LED current dimming mapping: linear mapping and exponential mapping. An automatic switching frequency function is integrated to optimize efficiency performance. Extensive protection features include LED open and short protection, cycle-by-cycle current limit protection, and thermal shutdown. An I2C interface allows internal registers to be set to program the MP3313 for flexible applications such as dimming mode, LED current slope, and protection thresholds. The MP3313 is available in a small WLCSP-12 (1.3mm x 1.7mm) package.

■Features and benefits

・2.7~5.5V input voltage ・300mΩ, 42V built-in MOSFET ・3-channel current sink, each channel individually enabled/disabled ・Up to 25mA LED current in backlight mode ・Up to 100mA LED current in flash mode ・250μA to 25mA LED current with ±3% accuracy - Typical current matching of ±1% ・Linear or exponential analog dimming ・11-bit dimming resolution ・Selectable switching frequency: 500kHz or 1MHz (-12% shift optional) ・Automatic switching frequency (250kHz, 500kHz, 1MHz) ・High-speed I2C interface (1.2MHz) ・Address can be externally selected via I2C (A0 pin) ・Internal soft start (SS) to reduce inrush current ・Current limit protection (0.75 / 1 / 1.25 / 1.5A)

  • Product

    3 Channel, Up to 38V Output, Linear/Exponential Analog Dimming, Step-Up White LED Driver with I2C MP3313

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1 Models of 3 Channel, Up to 38V Output, Linear/Exponential Analog Dimming, Step-Up White LED Driver with I2C MP3313

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)
3 Channel, Up to 38V Output, Linear/Exponential Analog Dimming, Step-Up White LED Driver with I2C MP3313-Part Number-MP3313

MP3313

Available upon quote

3

A-Dim

0.025

2.4

1

1.5

40

Integrated

300

Boost

Small (<10")

38

1,000

500

Catalog

WLCSP-12 (1.3x1.7)

5.5

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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