MP3398AGS-Z

Overview

The MP3398AGS-Z is a four-channel boost white LED controller from Monolithic Power Systems, designed for LCD panel backlighting. It operates within an input voltage range of 5 V to 28 V and delivers up to 350 mA per channel. The device utilizes a fixed switching frequency of 540 kHz with peak current mode control. It supports independent PWM and analog dimming modes. The component is housed in a 16-SOIC package and functions across a temperature range of -40°C to +125°C.

Feature Summary

• Supports independent PWM and analog dimming for flexible brightness control
• Features internal current sources ensuring high matching accuracy between LED strings
• Includes comprehensive protection mechanisms such as overcurrent, overtemperature, and open/short circuit detection

Applications

• Large LCD panel backlighting systems
• Television display modules
• Computer monitor backlight units

Procurement Notes

Verify the specific suffix Z indicates RoHS compliance and halogen-free status according to manufacturer declarations. Confirm the SOIC-16 package dimensions match PCB footprint requirements. Ensure input voltage specifications align with system power rails before integration.

Selection Notes

Select this model for applications requiring four independent LED channels with precise current matching. It is suitable for designs needing both analog and digital dimming capabilities without external multiplexers. Consider thermal dissipation requirements due to the SOIC-16 package constraints under maximum load conditions.

Part Context

This component belongs to the MP3398 family of WLED controllers. Variants like MP3398HGS-Z offer higher output voltages, while MP3398BGF-Z provides latch-off overcurrent protection. The AGS-Z variant specifically targets standard voltage ranges with robust protection features for general display applications.

Replacement Considerations

MP3398AGS-P is listed as a direct substitute by distributors.