Analog Devices MAX17690

Description

The MAX17690 is a peak current mode, fixed-frequency switching controller specifically designed for the isolated flyback topology operating in Discontinuous Conduction Mode (DCM). The device senses the isolated output voltage directly from the primary-side flyback waveform during the off time of the primary switch. No auxiliary winding or optocoupler is required for output-voltage regulation.The MAX17690 is designed to operate over a wide supply range from 4.5V to 60V. The switching frequency is programmable from 50kHz to 250kHz.

Features

● 4.5V to 60V Input Voltage Range● No Optocoupler or Third Winding Required to Derive Feedback Signal Across Isolation Boundary● 2A/4A Peak Source/Sink Gate Drive Currents● 50kHz to 250kHz Programmable Switching Frequency● Input EN/UVLO Feature● Input Overvoltage Protection● Programmable Soft-Start● Hiccup-Mode Short-Circuit Protection● Thermal Shutdown Protection● -40°C to 125°C Operating Temperature Range● Space-Saving, 16-Pin 3 x 3 TQFN Package

Typical applications

• Isolated Flyback Converters
• Industrial and Telecom Applications, PLC I/O modules
• Isolated Flyback Converters, Wide-Range DC-Input Isolated Power Supplies
• PLC I/O modules

More information

• Datasheet
• IC product information