LT3752IFE#PBF

Overview

The LT3752IFE#PBF is a current mode PWM controller optimized for active clamp forward converter topologies. It features an integrated DC/DC housekeeping controller, eliminating the need for auxiliary windings. The device supports a switching frequency range of 100 kHz to 500 kHz and offers a maximum duty cycle of 95%. It operates with a supply voltage between 6.5 V and 100 V. The component is housed in a 38-lead TSSOP package with an exposed pad and functions within a temperature range of -40°C to +125°C.

Feature Summary

• Integrated DC/DC housekeeping controller eliminates auxiliary winding requirements
• Optimized for active clamp forward converter topology with synchronous rectification control
• Current mode PWM architecture provides fast transient response

Applications

• Active clamp forward power supplies
• Isolated DC/DC conversion systems
• Industrial power management modules

Procurement Notes

Verify the specific suffix '#PBF' indicates lead-free RoHS compliance when sourcing. Confirm the 38-TSSOP-EP package dimensions match your PCB footprint design. Ensure the input voltage range aligns with your system's operational requirements before finalizing procurement.

Selection Notes

Select this controller for applications requiring high efficiency in forward converter designs without auxiliary windings. Consider the 100 V maximum supply limit and the 38-pin package size. Evaluate thermal performance due to the exposed pad requirement for proper heat dissipation during operation.

Part Context

This part belongs to the LT3752 series from Analog Devices, designed specifically for isolated power conversion. It differs from standard controllers by including an internal housekeeping regulator. The family focuses on simplifying transformer design and improving reliability in medium-power applications.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.