MP3385GF-P

Overview

The MP3385GF-P is a four-channel white LED (WLED) boost controller designed for LCD panel backlighting applications. It operates with an input voltage range of 4.5 V to 33 V and supports a maximum output voltage of 80 V per channel. The device delivers up to 300 mA output current per channel with a current matching accuracy of 1.8%. It features a programmable switching frequency between 100 kHz and 900 kHz and integrates an I2C interface for configuration. The component is housed in a TSSOP-EP-20 package and functions within a temperature range of -40°C to +125°C.

Feature Summary

• Integrates an I2C digital interface for flexible control of dimming modes, current settings, and protection thresholds.
• Supports multiple dimming methods including direct PWM, internal fixed-frequency PWM, analog, and hybrid modes.
• Features automatic detection and disabling of unused LED strings during startup to prevent overvoltage conditions.
• Provides comprehensive protection mechanisms including overcurrent, overtemperature, undervoltage, and short-circuit protection.

Applications

• LCD panel backlighting systems
• White LED array drivers for display modules

Procurement Notes

Verify the specific suffix 'GF-P' against the manufacturer's latest documentation to confirm pinout and packaging details. Note that this part number may be marked as Not Recommended for New Designs (NRND); consult official sources for active alternative recommendations such as the MP3385A series before finalizing procurement plans.

Selection Notes

Select this component for designs requiring precise multi-channel WLED regulation with digital control capabilities. Ensure the application demands an input voltage compatible with the 4.5 V to 33 V range and utilizes an I2C bus for system integration. Verify that the TSSOP-EP-20 package fits the thermal and spatial constraints of the target PCB layout.

Part Context

This device belongs to the MP3385 family of LED lighting driver ICs from Monolithic Power Systems. It serves as a specialized solution for driving high-voltage white LED strings in display applications, offering integrated power stage control and advanced diagnostic features via its digital interface.

Replacement Considerations

The MP3385A is documented as an alternative for new designs. Verify compatibility regarding pinout and feature set before substitution.