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  4. Low EMI, 6-channel, 15,000:1 boost WLED driver with dimming ratio and I2C interface MPQ3367A-AEC1 (Monolithic Power Systems, Inc.)
Low EMI, 6-channel, 15,000:1 boost WLED driver with dimming ratio and I2C interface MPQ3367A-AEC1-MPQ3367A-AEC1
Low EMI, 6-channel, 15,000:1 boost WLED driver with dimming ratio and I2C interface MPQ3367A-AEC1-Monolithic Power Systems, Inc.

Low EMI, 6-channel, 15,000:1 boost WLED driver with dimming ratio and I2C interface MPQ3367A-AEC1
Monolithic Power Systems, Inc.

About This Product

■Summary

MPQ3367A is a boost converter with 6 channel current sources. Designed to drive white LED (WLED) arrays as backlights for small or medium-sized liquid crystal display (LCD) panels. This device uses peak current mode as a pulse width modulation (PWM) control architecture to stabilize a boost converter. A 6-channel current source is applied to the LED cathode to adjust the LED brightness. The MPQ3367A regulates the current in each LED string to a value set by an external current setting resistor, with 2.5% current matching between strings. Low on-resistance MOSFETs and low headroom voltage improve efficiency. For ease of use, the MPQ3367A features a standard I2C digital interface. The switching frequency (fSW) can be set via a resistor, I2C interface, or external clock. MPQ3367A features analog dimming, PWM dimming, and mixed dimming modes with PWM input. Dimming mode can be selected by I2C interface or MIX/AD pin. It also has a phase shift function to remove noise during PWM dimming. Fully integrated protection features include overcurrent protection (OCP), overvoltage protection (OVP), and overtemperature protection (OTP). The LED current will automatically decrease at high temperatures. MP3367A is available in a QFN-24 (4mm x 4mm) package.

■Multiple dimming modes with pulse width modulation (PWM) input

・Direct PWM dimming ・Analog dimming ・Mix dimming at 25% or 12.5% ​​transition point

■Features and benefits

・Wide operating input voltage (VIN) range from 5V to 36V ・6 channels at maximum 150mA per channel ・100mΩ, 50V internal MOSFET ・Configurable switching frequency (fSW) from 300kHz to 2MHz ・External synchronization SW function ・When fPWM is 200Hz or less, dimming ratio during PWM dimming is 15,000: 1 ・Dimmer ratio during analog dimming by PWM dimming signal input 200:1 ・Excellent EMI characteristics ・Frequency spread spectrum (FSS) ・I2C interface, 3 selectable IC addresses

  • Product

    Low EMI, 6-channel, 15,000:1 boost WLED driver with dimming ratio and I2C interface MPQ3367A-AEC1

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1 Models of Low EMI, 6-channel, 15,000:1 boost WLED driver with dimming ratio and I2C interface MPQ3367A-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)
Low EMI, 6-channel, 15,000:1 boost WLED driver with dimming ratio and I2C interface MPQ3367A-AEC1-Part Number-MPQ3367A-AEC1

MPQ3367A-AEC1

Available upon quote

6

P-Dim, A-Dim, Mix-Dim

0.15

3

50

Integrated

Boost, SEPIC

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

45

2,200

200

Automotive

QFN-24 (4x4)

36

3.5

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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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