LTC3765IMSE#PBF

Power Supply Controllers, Monitors Overview

The LTC3765IMSE#PBF is a secondary-side controller for isolated DC/DC converters, featuring the Direct Flux Limit topology. It operates within an input voltage range of 7.7V to 14.5V and draws a maximum supply current of 1.7 mA. The device supports forward converter topologies with a fixed switching frequency of 430 kHz and a maximum duty cycle of 79%. It provides an output voltage of 8.5 V and an output current capability of 35 uA. Designed for surface-mount installation in a 16-TFSOP package with an exposed pad, it functions reliably across a temperature range of -40°C to +125°C.

Power Supply Controllers, Monitors Feature Summary

• Implements Direct Flux Limit technology for secondary-side control
• Supports forward converter topologies with active clamp control
• Includes integrated gate driver functionality

Power Supply Controllers, Monitors Applications

• Secondary-side control in isolated DC/DC converters
• Active clamp flyback power supplies
• Forward converter designs requiring precise flux balancing

Power Supply Controllers, Monitors Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or certified partners. Confirm the specific suffix matches the required package variant. Review the latest datasheet for any engineering change notices regarding the MSOP epoxy modification. Ensure compatibility with existing thermal management solutions due to the exposed pad requirement.

Power Supply Controllers, Monitors Selection Notes

Select this controller for applications requiring secondary-side regulation in isolated topologies. It is suitable for designs utilizing forward or active clamp flyback architectures. Consider the 16-TFSOP package constraints for PCB layout. Evaluate the 430 kHz fixed frequency against system noise requirements. Verify that the 7.7V minimum operating voltage aligns with the auxiliary power supply design.

Power Supply Controllers, Monitors Part Context

This component belongs to the LTC3765 series from Analog Devices, specialized for secondary-side control in isolated power conversion systems. The series utilizes Direct Flux Limit technology to manage transformer flux balance without primary-side sensing. The IMSE#PBF designation indicates the industrial temperature grade and lead-free packaging within the 16-MSOP form factor.

Power Supply Controllers, Monitors Replacement Considerations

Consult official documentation for direct pin-compatible substitutes within the same family. Cross-referencing with similar secondary-side controllers requires verifying topology support and control logic compatibility.