MP24830HS-LF

LED Driver IC Overview

The MP24830HS-LF-Z is a white LED driver IC from Monolithic Power Systems, designed for buck-boost applications. It supports an input voltage range of 4.5V to 90V and operates at a switching frequency of 356 kHz. The device features analog and PWM dimming capabilities via a single control pin. It is housed in a 14-pin SOIC package and functions within a temperature range of -40°C to +125°C. The component includes protections such as thermal shutdown, cycle-by-cycle peak-current limiting, open-string protection, and output short-circuit protection.

LED Driver IC Feature Summary

• Supports unique step-up/down operation suitable for both step-down and inverting step-up/down applications
• Incorporates both DC and PWM dimming onto a single control pin for simplified interface
• Features separate input reference ground pin allowing direct enable or dimming control for positive-to-negative power conversion
• Provides comprehensive fault protection including thermal shutdown, cycle-by-cycle over-current protection, open-string detection, and output short-circuit protection

LED Driver IC Applications

• TV LED backlight systems
• General lighting applications requiring wide input voltage ranges
• Automotive grade lighting solutions

LED Driver IC Procurement Notes

Verify the specific suffix (LF-Z) against the manufacturer's current datasheet to confirm package type and compliance status. Confirm availability as some distributors list this part as discontinued. Ensure the selected variant matches the required operating temperature range and pinout configuration for the target PCB design.

LED Driver IC Selection Notes

Select this component when a buck-boost topology is required for white LED driving with an input voltage up to 90V. It is suitable for designs needing programmable current limits and fast transient response. Consider the 14-pin SOIC package constraints and verify that the external component count aligns with space limitations. Ensure compatibility with analog or PWM dimming requirements.

LED Driver IC Part Context

The MP24830 belongs to MPS's partial power buck-boost WLED driver series. It is distinct from variants like the MP24830-C470 which are specifically optimized for backlight applications. The HS-LF-Z designation indicates a lead-free version in a SOIC-14 package. This family focuses on minimizing external components while maintaining stable operation with low ESR ceramic capacitors.

LED Driver IC Replacement Considerations

Direct substitutes include other MPS buck-boost LED drivers with similar input ranges and pinouts. Verify electrical parameters such as switching frequency and maximum output current before substitution. Check for package compatibility if replacing with QFN versions.