LX1562IDM

Overview

The LX1562IDM is a second-generation power factor correction controller utilizing discontinuous conduction mode (DCM). It operates at a switching frequency of 1.7MHz and supports a supply voltage range of 11V to 25V. The device features a startup current of 200 µA and is housed in an 8-SOIC package. Designed for high-efficiency power management, it integrates control logic optimized for DCM operation to enhance power factor performance in AC-DC conversion applications.

Feature Summary

• Implements discontinuous conduction mode (DCM) topology for efficient power factor correction
• Operates with a fixed switching frequency of 1.7MHz for consistent electromagnetic interference profiles
• Features low startup current consumption of 200 µA to minimize standby power losses
• Integrated control architecture designed specifically for second-generation PFC performance optimization

Applications

• Power factor correction in AC-DC power supplies
• High-efficiency consumer electronics power adapters
• Industrial equipment power management systems
• LED driver power stages requiring DCM operation

Procurement Notes

Verify component authenticity through authorized Microsemi distributors or certified partners. Confirm the specific suffix IDM corresponds to the 8-SOIC package variant. Check manufacturing date codes against project requirements as availability may vary due to product lifecycle status. Ensure compliance with RoHS and REACH regulations for intended market deployment.

Selection Notes

Select this controller when discontinuous conduction mode is required for light-load efficiency improvements. The 1.7MHz frequency allows for smaller passive components compared to lower-frequency alternatives. Ensure input voltage ranges align with the 11V to 25V supply requirement. Consider thermal management solutions suitable for the 8-SOIC package footprint in dense PCB layouts.

Part Context

The LX1562 belongs to Microsemi's second-generation family of power factor correction controllers. This series focuses on optimizing discontinuous conduction mode operation for improved efficiency across varying load conditions. The IDM suffix denotes the surface-mount 8-SOIC package configuration, distinguishing it from other pinout or package variants within the broader LX15xx product line.

Replacement Considerations

No direct public substitute part numbers are confirmed for the LX1562IDM. Evaluate legacy Microsemi LX15xx series controllers for functional compatibility if available. Verify pin-to-pin equivalence and control loop characteristics before considering alternative DCM PFC controllers from other manufacturers.