MP1528DK-LF-Z

LED Driver IC Overview

The MP1528DK-LF-Z is a boost converter LED driver IC from Monolithic Power Systems, designed to drive up to nine series-connected white LEDs from a single lithium-ion cell. It operates with an input voltage range of 2.7V to 36V and delivers an output current of 20mA. The device utilizes a QFN-6 (3mm x 3mm) package and supports both analog and digital PWM dimming. Key electrical parameters include a maximum operating temperature of +85°C and a minimum of -40°C.

LED Driver IC Feature Summary

• Integrates a low on-resistance power MOSFET for high efficiency
• Supports analog and digital PWM brightness control
• Includes open-load protection to prevent device damage
• Features soft-start and internal current limiting

LED Driver IC Applications

• Single-cell lithium-ion battery powered LED lighting
• Automotive interior illumination systems
• Portable electronic device backlighting
• High-brightness LED string drivers

LED Driver IC Procurement Notes

Verify the specific suffix 'Z' indicates lead-free compliance and reel packaging configuration as per MPS standards. Confirm that the QFN-6 package dimensions match your PCB footprint requirements. Ensure the design accounts for the 20mA output current limit when sizing external components. Cross-reference the datasheet revision date to confirm compatibility with current manufacturing processes.

LED Driver IC Selection Notes

Select this component when driving multiple series LEDs from a single-cell source is required. The boost topology is essential for maintaining constant current above the battery voltage. Consider the small QFN-6 package for space-constrained designs. Evaluate the need for PWM dimming capabilities if system-level brightness control is necessary for the application.

LED Driver IC Part Context

This part belongs to the MP1528 family of LED drivers. Variants such as MP1528DQ-LF-P share similar electrical characteristics but differ in package type, specifically using MSOP-8 instead of QFN-6. The DK suffix typically denotes a specific tape and reel configuration within the product line.

LED Driver IC Replacement Considerations

MP1528DQ-LF-P offers identical electrical performance but uses an MSOP-8 package. MP1528DG-LF-Z provides alternative packaging options. Verify pinout compatibility and thermal dissipation requirements when substituting between QFN and MSOP packages.