LT1952MPGN#TRPBF

Overview

The LT1952MPGN#TRPBF is a monolithic current mode PWM controller designed for forward and flyback converter topologies. It operates within an input voltage range of 15.75 V to 25 V, supporting output power up to 300 W. The device features a switching frequency range of 80 kHz to 560 kHz and includes shutdown functionality with a supply current of 5.2 mA and shutdown current of 240 µA. It is housed in a 16-pin SSOP package and supports an operating temperature range from -55°C to 125°C.

Feature Summary

• Supports forward and flyback converter topologies with isolation capability
• Current mode PWM control architecture for stable regulation
• Wide switching frequency range allows optimization for size and efficiency
• Integrated shutdown feature reduces standby power consumption

Applications

• Isolated DC-DC power supplies
• Forward converter designs
• Flyback converter applications
• Industrial power systems requiring wide temperature operation

Procurement Notes

Verify the specific suffix '#TRPBF' indicates tape and reel packaging when ordering. Confirm that the 'M' prefix denotes military-grade specifications if required for your application. Ensure the 16-SSOP package footprint matches your PCB design constraints. Cross-reference the datasheet revision date to ensure compatibility with latest design guidelines.

Selection Notes

Select this component when a current mode controller is needed for isolated forward or flyback converters. Consider the 80 kHz to 560 kHz frequency range for transformer sizing trade-offs. Verify the 15.75 V to 25 V input range fits your system requirements. Check the -55°C to 125°C operating range against environmental conditions.

Part Context

The LT1952 series serves as a high-performance PWM controller for isolated power conversion. The MPGN variant specifically targets ruggedized or military applications due to its extended temperature range and reliability standards. It complements other Linear Technology controllers by offering current mode control in a compact SSOP package.

Replacement Considerations

Check Analog Devices documentation for direct pin-compatible alternatives within the LT1952 family. Verify functional equivalence for forward and flyback topologies before substitution. Ensure thermal and electrical specifications match the original design requirements.