MP3398AGF

Overview

The MP3398AGF-Z is a four-channel boost white LED controller from Monolithic Power Systems, designed for driving WLED arrays in display applications. It operates within an input voltage range of 5 V to 28 V and supports a fixed switching frequency of 540 kHz. The device provides up to 350 mA output current per channel and features PWM dimming capabilities alongside open LED protection. Packaged in a TSSOP-EP-16 format, it functions reliably across temperatures from -40°C to +125°C with a maximum supply current of 1.35 mA.

Feature Summary

• Four independent output channels configured for boost topology to drive white LED strings
• Integrated pulse-width modulation (PWM) dimming interface for precise brightness control
• Built-in open LED protection circuitry to detect and manage load disconnection faults

Applications

• White LED backlighting controllers for television displays
• Monitor panel illumination driver circuits
• Portable electronic device display lighting systems

Procurement Notes

Verify the specific suffix designation when ordering, as variants such as AGF-Z and AGF-P differ in switching frequency specifications and included protection features. Confirm package availability and moisture sensitivity level requirements prior to assembly. Ensure compatibility with the target system's thermal management and input voltage constraints before finalizing procurement decisions.

Selection Notes

Select this component for designs requiring multi-channel LED regulation with integrated fault detection. The fixed frequency variant suits applications prioritizing consistent electromagnetic interference profiles. Evaluate the need for inductor short protection, which is present in specific suffixes but absent in others, to determine the appropriate version for the intended safety and reliability standards.

Part Context

This part belongs to the MP3398A series of LED lighting drivers manufactured by Monolithic Power Systems. It serves as a specialized controller for high-brightness white LED arrays used in visual display technologies. The series focuses on providing robust channel management and diagnostic features for consumer electronics backlighting solutions.

FAQ

Does the MP3398AGF-Z include inductor short protection?

No, the MP3398AGF-Z variant does not include inductor short protection. This feature is available in the MP3398AGF-P variant.

What is the operating frequency of the MP3398AGF-Z?

The MP3398AGF-Z operates at a fixed switching frequency of 540 kHz.