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  3. LED Drivers
  4. 4-channel, up to 150mA/channel, boost WLED driver with 15,000:1 dimming ratio and I2C MPQ3364-AEC1 (Monolithic Power Systems, Inc.)
4-channel, up to 150mA/channel, boost WLED driver with 15,000:1 dimming ratio and I2C MPQ3364-AEC1-MPQ3364-AEC1
4-channel, up to 150mA/channel, boost WLED driver with 15,000:1 dimming ratio and I2C MPQ3364-AEC1-Monolithic Power Systems, Inc.

4-channel, up to 150mA/channel, boost WLED driver with 15,000:1 dimming ratio and I2C MPQ3364-AEC1
Monolithic Power Systems, Inc.

Monolithic Power Systems, Inc.'s Response Status

Response Rate

100.0%

Response Time

15.6hours

Relatively Fast Response

About This Product

■Summary

MPQ3364 is a step-up converter with 4 channels of current sources. This device is designed to drive a white LED array as a backlight for small or medium-sized LCD panels. The device uses peak current mode as the PWM control architecture to regulate the boost converter. A four-channel current source is applied to the LED cathode to adjust the LED brightness. The MPQ3364 adjusts the current in each LED string to a value set by an external current setting resistor. String-to-string current regulation accuracy is 2.5%. It features a low on-resistance MOSFET and headroom voltage to improve efficiency. MPQ3364 has a standard I2C digital interface. Switching frequency (fSW) is programmable via a resistor, I2C interface, or external clock. MPQ3364 offers analog, PWM, and mixed dimming modes with PWM input. Dimming mode is selectable via I2C interface or MIX/AD pin. The device also features a phase shift function to eliminate noise during PWM dimming. Robust protection features are built in to ensure safe operation of the device. Protection modes include overcurrent protection (OCP), overvoltage protection (OVP), overtemperature protection (OTP), LED short circuit, and open protection. MPQ3364 can automatically reduce LED current at high temperatures. The MPQ3364 is available in a QFN-24 (4mm x 4mm) package.

■Features and benefits

・3.5V to 36V input voltage (VIN) range ・4 channels, maximum 150mA per channel ・Internal 100mΩ, 50V MOSFET ・fSW configurable up to 2.2MHz ・External synchronization SW function Multi-dimming operation via PWM input, including direct PWM dimming, analog dimming, and mixed dimming with 25% or 12.5% ​​transition points ・15,000:1 dimming ratio with PWM dimming when fPWM ≦ 200Hz ・200:1 dimming ratio during analog dimming through PWM dimming signal input ・Excellent EMI performance, frequency spectrum spread ・I2C interface with 3 selectable IC addresses ・Phase shift function for PWM dimming ・2.5% current consistency

  • Product

    4-channel, up to 150mA/channel, boost WLED driver with 15,000:1 dimming ratio and I2C MPQ3364-AEC1

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1 Models of 4-channel, up to 150mA/channel, boost WLED driver with 15,000:1 dimming ratio and I2C MPQ3364-AEC1

Image Part Number Price (excluding tax) Channels Dimming (Output) Ichannel (max) (A) Isw Limit (A) LEDx ABS Voltage (V) Power MOSFET 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)
4-channel, up to 150mA/channel, boost WLED driver with 15,000:1 dimming ratio and I2C MPQ3364-AEC1-Part Number-MPQ3364-AEC1

MPQ3364-AEC1

Available upon quote

4

P-Dim, A-Dim, Mix-Dim

0.15

5.5

50

Integrated

Boost/SEPIC

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

45

2,200

200

Catalog

QFN-24 (4x4)

36

3.5

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About Company Handling This Product

Monolithic Power Systems, Inc.

Response Rate

100.0%

Response Time

15.6hrs

Company Overview

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

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LED Drivers
LED Drivers　Monolithic Power Systems, Inc.
Monolithic Power Systems, Inc.

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