LX27901IDW

LED Driver IC Overview

The LX27901IDW is a linear LED driver IC from Microsemi Corporation, housed in a 16-pin SOIC package. It operates as a current mode PWM controller with a switching frequency of 151.2 kHz. The device supports a supply voltage range of 7.5 V to 27 V and draws a supply current of approximately 10 mA. It features two output interfaces and functions within an operating temperature range of -40°C to 85°C. This component is designed for backlight applications and complies with RoHS standards.

LED Driver IC Feature Summary

• Offers three selectable drive modes to support a wide range of circuit topologies
• Provides an optimized solution specifically for off-PFC LED drive applications
• Integrates linear dimming capabilities within a compact surface-mount package

LED Driver IC Applications

• LED backlighting systems
• Off-PFC LED drive circuits
• General lighting control modules

LED Driver IC Procurement Notes

Verify the specific suffix (e.g., ID vs. ID-TR) to confirm packaging type, as tape-and-reel variants exist. Confirm availability status, as this part may be discontinued or limited in stock at major distributors. Ensure the supplier provides valid datasheets matching the Microsemi Corporation specifications before purchase.

LED Driver IC Selection Notes

Select this component when a linear LED driver with PWM control is required for off-PFC architectures. Ensure the input voltage stays within the 7.5 V to 27 V range. Consider the 16-SOIC footprint for PCB layout constraints. Verify thermal management requirements given the linear regulation nature of the device.

LED Driver IC Part Context

This part belongs to the LX2790x series of LED drivers by Microsemi. It shares functional similarities with other models like the LX27906 but differs in specific pinout or configuration details. The series targets efficient LED driving solutions where power factor correction is handled externally or not required.

LED Driver IC Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult Microsemi's official obsolescence notices or authorized distributor cross-reference tools for potential alternatives.