Monolithic Power Systems MP3371
The MP3371 is a synchronous boost converter with eight current channels designed to drive WLED arrays for LCD panels in tablets and notebook backlighting applications. The MP3371 uses peak current control mode and pulse-width modulation (PWM) control to maintain boost converter regulation. The MP3371 employs a standard I2C digital interface to set the operation mode, switching frequency, full-scale current for each channel, sync or nonsync mode, dimming mode and duty, and various protection thresholds.| Part No. | MP3371 |
|---|---|
| Datasheet | MP3371 Download |
| Manufacturer |  Monolithic Power Systems |
| Description | Boost WLED Driver |
| Buy | Stock & Price |
DESCRIPTION
The MP3371 features high efficiency due to lowheadroom voltage for LED regulation and a small on resistance of the switching MOSFET. The synchronous rectifier saves PCB size and total BOM cost. The MP3371 is available in a QFN-24 (4mmx4mm) package.FEATURES
● 8 Channels with Max 50mA/Channel● Synchronous Converter with 50V LS-FET/HS- FET 155m/235mΩ On Resistance
● 3V to 30V Input Voltage Range
● 470mV LED Regulation Voltage at 20mA
● Max 2.5% Current Matching
● 350kHz, 500kHz, 650kHz, 800kHz, 950kHz, or 1.2MHz Selectable Switching Frequency
● A1 Pins for Two I2C Addresses
● 0mA to 50mA Full-Scale LED Current, 8 Bits, 0.196mA/Step
● Selectable Sync or Non-Sync Mode
● Multi-Dimming Operation Mode Including: o Analog Dimming through External PWM Input or I2C Interface, 10-Bit Resolution o PWM Dimming through External PWM Input or I2C Interface, 14-Bit Resolution o Mixed Dimming Mode through External PWM Input or I2C Interface with 6.25%, 12.5%, 25%, or 50% Transfer Point, 14B...
