ADP1071-2ARWZ

ADP1071-2 is a pulse-width modulation (PWM ) current mode fixed frequency synchronous flyback controller designed for isolated DC-to-DC power supplies. Analog Devices proprietary iCouplers® are integrated in the ADP1071-2 to eliminate the bulky signal transformers and optocouplers that transmit signals over the isolation boundary. Integrating the iCouplers reduces system design complexity, cost and component count and improves overall system reliability. With the integrated isolators and metal-oxide semiconductor field effect transistor (MOSFET) drivers on both the primary and the secondary side, the ADP1071-2 offer a compact system level design and yield a higher efficiency than a diode rectified flyback converter at heavy loads. Typical application includes isolated DC-to-DC or AC-to-DC power conversion, telecom, industrial, small cell, POE powered device, enterprise switches and routers.

• Current mode controller for flyback topology and programmable slope compensation
• Forced CCM operation and integrated 5KV isolation
• Wide voltage supply range: primary VDD: up to 60V
• Integrated 1A primary/secondary side MOSFET drivers for synchronous rectification
• Integrated error amplifier and <lt/> 1% accurate reference voltage
• Programmable freq: 50 to 600KHz, duty cycle clamp limit 85%, precision enable UVLO with hysteresis
• Programmable soft start and soft start from precharged load, cycle by cycle input OCP
• Protection features such as short circuit, output overvoltage and over temperature protection
• Frequency synchronization
• 16 lead WSOIC package, operating temperature range from -40°C to 125°C

Notes

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