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  4. 3 Channel, 38VOUT, Step-Up White LED Driver with IC with Linear/Exponential Dimming MP3318 (Monolithic Power Systems, Inc.)
3 Channel, 38VOUT, Step-Up White LED Driver with IC with Linear/Exponential Dimming MP3318-MP3318
3 Channel, 38VOUT, Step-Up White LED Driver with IC with Linear/Exponential Dimming MP3318-Monolithic Power Systems, Inc.

3 Channel, 38VOUT, Step-Up White LED Driver with IC with Linear/Exponential Dimming MP3318
Monolithic Power Systems, Inc.

About This Product

■Summary

The MP3318 is a white LED step-up converter with three current sinks and a 2.7 to 5.5V power input. MP3318 uses peak current mode to adjust the LED current set by internal registers. The MP3318 has an integrated 250mΩ, 42V MOSFET. The maximum voltage of LED is up to 38V. The MP3318 can drive 10 LEDs in series for LCD panel applications larger than 5 inches. The MP3318 supports both linear and exponential analog dimming with 11-bit ultra-high resolution and precisely adjusts the dimming current. Automatic frequency switching feature allows you 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 MP3318 with dimming modes, LED current ramps, protection thresholds, etc. for flexible applications. The MP3318 is available in a small WLCSP-12 (1.3mm x 1.7mm) package.

■Features and benefits

・Input voltage from 2.7V to 5.5V ・42V, 250mΩ internal MOSFET ・3-channel current sink, each channel individually enabled/disabled ・Up to 25mA LED current in backlight mode ・Linear or exponential analog dimming ・Up to 50mA LED current in flash mode ・11-bit dimming resolution ・Excellent LED current accuracy ・Excellent LED string current matching ・Switching frequency of 500kHz / 1MHz (optional -12% shift) ・Automatic switching frequency (250kHz, 500kHz, 1MHz) ・High-speed I2C interface (1.2MHz) ・Internal soft start to reduce inrush current ・Current limit protection (0.75A, 1A, 1.25A, 1.5A) ・LED open protection (17V, 23V, 30V, 38V) ・LED short circuit protection (2V, 3V, 5V) ・Provided in WLCSP-12 (1.3mm x 1.7mm) package

■Available product numbers

・MP3318GC-P MP3318GC-Z ・Part numbers ending in P and Z are the same part. P and Z indicate reel size only

  • Product

    3 Channel, 38VOUT, Step-Up White LED Driver with IC with Linear/Exponential Dimming MP3318

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1 Models of 3 Channel, 38VOUT, Step-Up White LED Driver with IC with Linear/Exponential Dimming MP3318

Image Part Number Price (excluding tax) Channels Dimming (Output) Ichannel (max) (A) 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, 38VOUT, Step-Up White LED Driver with IC with Linear/Exponential Dimming MP3318-Part Number-MP3318

MP3318

Available upon quote

3

A-Dim

0.025

1

1.5

40

Integrated

250

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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