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  4. 16-channel, 50mA/channel, LED driver MP3326 with independent PWM analog dimming and I2C interface (Monolithic Power Systems, Inc.)
16-channel, 50mA/channel, LED driver MP3326 with independent PWM analog dimming and I2C interface-MP3326
16-channel, 50mA/channel, LED driver MP3326 with independent PWM analog dimming and I2C interface-Monolithic Power Systems, Inc.

16-channel, 50mA/channel, LED driver MP3326 with independent PWM analog dimming and I2C interface
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

The MP3326 is a 16-channel white LED driver that can operate over a wide input voltage range of 4V to 16V. The MP3326 utilizes 16 internal current sources on each LED string terminal. The LED current for each channel is set by an external current setting resistor. The maximum current for each channel is 50mA (VIN ≥ 4.5V). The device integrates an I2C interface with up to 10 programmable I2C addresses via external resistors. This means the MP3326 can support up to 10 cascaded devices to drive LED arrays. Each channel can be enabled or disabled through I2C. The MP3326 employs independent pulse width modulation PWM dimming and analog dimming for each LED channel, and 12-bit resolution PWM dimming and 6-bit analog dimming for each channel. The ramp rate and phase shift of the LED current can be set to optimize EMI/EMC performance. The device can output a refresh signal from the RFSH/FLT pin, and the frequency of the refresh signal can be set by a register. LED open and short circuit protection, over temperature protection (OTP) are integrated into the device. When protection is triggered, the fault indicator goes low and the corresponding fault register is set. The MP3326 is available in a QFN-24 (4mm x 4mm) package.

■Advantages

・Independent pulse width modulation (PWM) and analog dimming for each channel ・Deep dimming mode, 12 bits for PWM dimming ・Phase shift and slew rate to reduce EMI ・Up to 10 addresses can be set

■Features and benefits

・Wide input voltage range from 4V to 16V ・16 channels, max. 50mA/channel (VIN ≥ 4.5V) ・LED current set by external resistor ・6-bit analog dimming for each channel ・12-bit PWM dimming for each channel - PWM dimming frequency selectable from 220Hz, 250Hz, 280Hz, or 330Hz ・Refresh signal output ・I2C interface ・10 addresses configurable via external resistors ・Configurable LED current slew rate ・40μs phase shift ・Failure indicator

  • Product

    16-channel, 50mA/channel, LED driver MP3326 with independent PWM analog dimming and I2C interface

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1 Models of 16-channel, 50mA/channel, LED driver MP3326 with independent PWM analog dimming and I2C interface

Image Part Number Price (excluding tax) Channels Dimming (Output) Ichannel (max) (A) Iq (mA) Ishutdown (µA) LEDx ABS Voltage (V) Topology Grade Package (mm) Input voltage (max) (V) Input voltage (min) (V)
16-channel, 50mA/channel, LED driver MP3326 with independent PWM analog dimming and I2C interface-Part Number-MP3326

MP3326

Available upon quote

16

P-Dim, A-Dim

0.05

4

2

18

LED Driver with Current Source

Catalog

QFN-24 (4x4)

16

4

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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　Monolithic Power Systems, Inc.
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