LT3825EFE#TRPBF

LT3825 is an isolated switching regulator controller designed for medium power flyback topologies. A typical application is 10W to 60W with input voltage limited only by external power path components. A third transformer winding provides output voltage feedback. It is a current mode controller that regulates output voltage based on sensing secondary voltage via a transformer winding during flyback. This allows for tight output regulation without the use of an opto-isolator, improving dynamic response and reliability. Synchronous rectification increases converter efficiency and improves output cross regulation in multiple output converters. It operates in forced continuous conduction mode which improves cross regulation in multiple winding applications. It is used in application such as isolated telecom, medical converters, instrumentation power supplies, isolated power over Ethernet supplies etc.

• Maximum switch duty cycle is 88% typical
• Synchronous driver for high efficiency
• Input voltage limited only by external power components
• Accurate output regulation without user trims
• Synchronizable, load compensation
• Programmable undervoltage lockout
• Supply current is 6.4mA typical
• Switching frequency is 100KHz typical
• Operating junction temperature is -40°C to 125°C
• Package style is 16-lead plastic TSSOP

Noter

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party