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  4. 16 channels, 80mA/channel, LED driver MP3326A with independent PWM/analog dimming and digital interface (Monolithic Power Systems, Inc.)
16 channels, 80mA/channel, LED driver MP3326A with independent PWM/analog dimming and digital interface-MP3326A
16 channels, 80mA/channel, LED driver MP3326A with independent PWM/analog dimming and digital interface-Monolithic Power Systems, Inc.

16 channels, 80mA/channel, LED driver MP3326A with independent PWM/analog dimming and digital interface
Monolithic Power Systems, Inc.

About This Product

■Summary

The MP3326A is a 16-channel LED driver that operates over a wide input voltage (VIN) range of 4.5V to 16V. The MP3326A utilizes 16 internal current sources on each LED string terminal. The LED current (ILED) for each channel is set by an external current setting resistor. The maximum current for each channel is 80mA. The MP3326A integrates a digital interface with up to 10 configurable digital interface addresses via external resistors. This means the MP3326A can support up to 10 cascaded devices to drive LED arrays. Each channel can be enabled or disabled through the digital interface. The MP3326A employs both independent pulse width modulation (PWM) and analog dimming for each LED channel, as well as 12-bit PWM dimming and 6-bit analog dimming for each channel. Configurable ILED lamp rate and phase shift to reduce EMI. MP3326A can output refresh signal from RFSH/FLT pin. Here, the refresh signal frequency (fREFRESH) can be set via the serial interface. Extensive protection features include LED open protection, LED short circuit protection, and overtemperature protection (OTP). The device also has a fault indicator. When the protection is activated, the RFSH/FLT pin goes low and the corresponding fault register is set. The MP3326A is available in a QFN-24 (4mm x 4mm) package.

■Features and benefits

・Wide 4.5V to 16V input voltage (VIN) range ・16 channels, maximum 80mA/channel ・LED current (ILED) set via external resistor ・6-bit analog dimming for each channel ・12-bit pulse width modulation (PWM) dimming for each channel -Selectable configurable PWM dimming frequency (fPWM) of 220Hz, 250Hz, 280Hz, or 330Hz ・Refresh signal output ・Digital interface ・10 addresses configurable via external resistors ・Configurable ILED slew rate ・40μs phase shift ・Failure indicator ・LED open protection

  • Product

    16 channels, 80mA/channel, LED driver MP3326A with independent PWM/analog dimming and digital interface

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1 Models of 16 channels, 80mA/channel, LED driver MP3326A with independent PWM/analog dimming and digital 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 channels, 80mA/channel, LED driver MP3326A with independent PWM/analog dimming and digital interface-Part Number-MP3326A

MP3326A

Available upon quote

16

P-Dim, A-Dim

0.08

5

2

Twenty two

LED Driver with Current Source

Catalog

QFN-24 (4x4)

16

4.5

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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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LED Drivers　Monolithic Power Systems, Inc.
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