MP2489DN-LF-P

LED Driver IC Overview

The MP2489DN-LF-P is a high-efficiency buck converter designed for driving high-brightness white LEDs. It operates within a wide input voltage range of 6V to 60V and delivers an output current of 1A. The device utilizes a hysteresis control structure for precise LED current regulation without requiring external loop compensation. Key electrical parameters include a switching frequency of 600 kHz, a maximum power dissipation of 2.6 W, and a maximum supply current of 1 mA. It supports both PWM and analog dimming functions and includes built-in thermal overload protection.

LED Driver IC Feature Summary

• Hysteresis control architecture ensures stable operation with ultra-fast response times and eliminates the need for external loop compensation components.
• Integrated PWM and analog dimming capabilities allow for precise brightness control with a specified PWM dimming ratio of 1000:1.
• Built-in protection mechanisms include thermal shutdown and inherent safeguards against LED open-circuit and short-circuit conditions.

LED Driver IC Applications

• Industrial lighting systems requiring robust driver ICs
• Automotive interior and exterior illumination applications
• General-purpose high-brightness white LED driving circuits

LED Driver IC Procurement Notes

Verify that the suffix 'P' corresponds to the tape-and-reel packaging format as indicated by distributor listings. Confirm RoHS compliance status through official manufacturer documentation before integration. Ensure the selected variant matches the required operating temperature range for industrial or automotive environments. Cross-reference the specific part number with the latest datasheet to confirm pinout and package dimensions.

LED Driver IC Selection Notes

Select this component when a wide input voltage range up to 60V is required for LED applications. The integrated 60V power MOSFET simplifies design by reducing external component count. Choose this model for designs prioritizing efficiency greater than 95% and compact form factors using SOIC-8E or QFN-6 packages. Ensure the application benefits from the simplified hysteresis control topology over traditional PWM controllers.

LED Driver IC Part Context

The MP2489 series belongs to Monolithic Power Systems' portfolio of efficient step-down white LED drivers. This family is characterized by its ability to operate in continuous conduction mode across a broad input voltage spectrum. The MP2489DN-LF-P specifically denotes the SOIC-8E package variant within this series, offering a balance between performance and ease of surface-mount assembly.

LED Driver IC Replacement Considerations

Direct substitutes within the same series include MP2489DJ-LF-P and MP2489DQ-LF-P, which share identical electrical specifications but differ in package type (TSOT23-5 and QFN-6 respectively). Verify package compatibility and thermal requirements when substituting these variants.