MP3398BGF-P

Overview

The MP3398BGF-P is a four-channel boost white LED controller from Monolithic Power Systems, designed for TV and monitor backlighting. It operates within an input voltage range of 5 V to 28 V and supports a switching frequency between 150 kHz and 621 kHz. Each channel delivers up to 350 mA output current with open-drain outputs. The device features inductor short protection and overcurrent latch-off functionality. It is housed in a TSSOP-EP-16 package and functions reliably across a temperature range of -40°C to +125°C.

Feature Summary

• Four independent channels providing individual control for white LED arrays
• Integrated inductor short circuit protection mechanism
• Overcurrent latch-off protection for enhanced system safety
• Programmable switching frequency for EMI optimization

Applications

• TV backlight systems
• Monitor display backlighting
• White LED array controllers

Procurement Notes

Verify the specific suffix GF against the official datasheet to confirm the TSSOP-EP-16 package and latch-off variant. Ensure compatibility with the required input voltage range and thermal dissipation requirements for the target application environment before finalizing procurement.

Selection Notes

Select this component when designing high-reliability backlight drivers requiring independent channel control and robust fault protection. The integrated inductor short protection and overcurrent latch-off distinguish it from standard controllers, making it suitable for applications where system durability under fault conditions is critical.

Part Context

This part belongs to the MP3398B series of LED lighting driver ICs. It serves as an OCP latch-off version of the MP3398A, offering enhanced protection mechanisms while maintaining similar electrical characteristics for driving multiple white LEDs in series configurations.

Replacement Considerations

MP3398AGS-P: Similar 4-channel boost controller but lacks the specific overcurrent latch-off feature found in the B-series.