MP3376

MP3376

8-Channel, Synchronous, Boost, WLED Driver with I2C Interface

Datasheet

Description

The MP3376 is a synchronous boostconverter with eight current channels designed to drive WLED arrays for LCD panels in tablets and notebook backlighting applications.
The MP3376 uses peak-current-mode and pulse-width modulation (PWM) control to maintainboost converter regulation. The MP3376 employs a standard I2C digital interface to set the operation mode,switching frequency, full-scale current for each channel, sync or non-sync mode, dimming mode and duty, and various protection thresholds.
The MP3376 features high efficiency with a small on resistance of the switching MOSFET. The synchronous rectifier saves PCB size and total BOM cost.
The MP3376 is available in a QFN-24 (4mmx4mm) package.

Features & Benefits

8Channels with Max50mA/Channel
Synchronous Converter with LS-FET/HS-FET 160mΩ/260mΩOn Resistance
3V to 30V Input Voltage Range
Up to 36V Output Voltage
Max 2.5% Current Matching
350kHz/500kHz/650kHz/800kHz/950kHz/1.2MHz/1.8MHz/2.4MHz Selectable Switching Frequency
A0, A1 Pins for FourI2C Addresses
0mA to 50mA Full-Scale Current Set, 8-Bit,0.196mA/Step
Selectable Sync or Non-Sync Mode
Multi-Dimming Operation Mode Including:

Analog Dimming ModethroughExternal PWM Input
Analog Dimming Modethrough I2C Interface
Mixed Dimming Mode throughExternal PWM Input with 6.25%/12.5%/25%/50%Transfer Point
MixedDimming Mode through I2C Interface with 6.25%/12.5%/25%/50% Transfer Point

Customizable Default Register Values
Linear Smooth Dimming with 2/4/8/16/32/64/128µs for Per-StepSlope Set
Unused LED String Auto-Disable during Start-Up
LED Short/Open, OTP, OCP, Inductor or Diode Short Protection

2.5 / 5 / 7.5 / 10V LED Short Threshold
24/31/36V OVP Threshold
1.8 /2.5A Cycle-by-Cycle Current Limit

Free for Adjacent Pin Short Test
Available in a QFN-24(4mmx4mm)Package

Active Part Numbers:

MP3376GR-xxxx-P MP3376GR-xxxx-Z

Meaning of P & Z

Evaluation Tools

EV3376-R-00A Evaluation Kit 8-Channel, Synchronous, Boost, WLED Driver with I²C Interface

The MP3376 is a synchronous boost converter with 8 current channels designed to drive WLED arrays for LCD-panel in tablet and notebook backlighting applications.

The MP3376 uses peak-current mode and PWM control to maintain boost converter regulation. The MP3376 employs a standard I²C digital interface to set operation mode, switching frequency, full-scale current for each channel, sync or non-sync mode, dimming mode and duty, and various protection thresholds.

MP3376 features high efficiency with small on resistance of switching MOSFET. In addition, the synchronous rectifier saves PCB size and total BOM cost.

The MP3376 is available in QFN24 (4mmX4mm) package.

$100.00
+ tax

Design Resources

Symbol, Footprint & 3D Model

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