LT3574IMS#PBF - 

制造商：

LINEAR TECHNOLOGY LINEAR TECHNOLOGY

制造商产品编号：

LT3574IMS#PBF

仓库库存编号：

1898625

技术数据表：

(EN)

The LT3574IMS#PBF is an Isolated Flyback Converter without an opto-coupler specifically designed for the isolated flyback topology. No third winding or opto-isolator is required for regulation. The part senses the isolated output voltage directly from the primary-side flyback waveform. A 0.65A, 60V NPN power switch is integrated along with all control logic. The LT3574 operates with input supply voltages from 3 to 40V and can deliver output power up to 3W with no external power devices. The LT3574 utilizes boundary mode operation to provide a small magnetic solution with improved load regulation. The output voltage is easily set with two external resistors and the transformer turns ratio. Off-the-shelf transformers are available for many applications.

• 0.65A, 60V Integrated NPN power switch
• Boundary mode operation
• No transformer third winding or opto-isolator required for regulation
• Improved primary-side winding feedback load regulation
• VOUT set with two external resistors
• BIAS pin for internal bias supply and power NPN driver
• Programmable soft-start
• Programmable power switch current limit