LT3750AEMS#TRPBF

Specialized ICS Overview

The LT3750AEMS#TRPBF is a flyback converter controller designed to rapidly charge large capacitors to user-adjustable target voltages. It utilizes a patented boundary mode control scheme to minimize transition losses and reduce transformer size. The device operates from a wide input voltage range of 3V to 24V and features primary-side sensing, eliminating the need for output voltage dividers. A low 78mV current sense accurately limits peak switch current to maximize efficiency. Typical applications include charging a 100µF capacitor to 300V in less than 300ms. The IC is housed in a 10-lead MSOP package.

Specialized ICS Feature Summary

• Patented boundary mode control minimizes transition losses and reduces transformer size
• Wide input voltage range: 3V to 24V
• Primary-side sensing eliminates the need for output voltage divider resistors
• Low 78mV current sense accurately limits peak switch current

Specialized ICS Applications

• Emergency warning beacons
• Professional photoflash systems
• Security and inventory control systems
• High voltage power supplies
• Electric fences

Specialized ICS Procurement Notes

Verify that the ordering suffix #TRPBF corresponds to the Tape and Reel packaging format as specified in the manufacturer's order information. Confirm the component grade meets the –40°C to 85°C operating temperature range requirements for the intended application environment before procurement.

Specialized ICS Selection Notes

Select external components based on the specific target output voltage and required charge current. Ensure the external NMOS transistor voltage rating exceeds VTRANS + VOUT/N. Use at least 1% tolerance resistors for RVOUT and RBG to maintain accurate voltage setting. Verify transformer selection aligns with the recommended primary inductance constraints to prevent overcharging.

Specialized ICS Part Context

The LT3750AEMS#TRPBF belongs to the LT3750A series of capacitor charger controllers manufactured by Analog Devices Inc. This series is specifically engineered for high-voltage, high-current capacitor charging applications requiring fast charge times and efficient energy transfer via flyback topology.

Specialized ICS Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult Analog Devices technical support or official distributor channels for verified cross-reference data.