ADP1071-1ARWZ

ADP1071-1ARWZ is an isolated synchronous flyback controller with integrated iCoupler. This pulse-width modulation (PWM) current mode fixed frequency synchronous flyback controller designed for isolated dc-to-dc power supply. Analog Devices proprietary iCoupler® integrated in the ADP1071-1 to eliminate the bulky signal transformer and optocoupler that transmit signals over the isolation boundary. Integrating the iCoupler reduces system design complexity, cost, and component count and improves overall system reliability. Output regulation is achieved by sensing the output voltage on the secondary side, where the feedback and the PWM signal is transmitted between the primary and secondary sides through the iCoupler. The ADP1071-1 targets high input voltage applications, in which the dc input voltage can exceed 60V. Applications include 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
• Programmable LLM or CCM for high VIN applications
• Programmable slope compensation, frequency synchronization
• Wide voltage supply range from 4.7 to 12.5V (VIN = 24V, -40°C to +125°C)
• Integrated 1A primary side MOSFET driver and for synchronous rectification
• Integrated error amplifier and <lt/>1% accurate reference voltage
• Programmable soft start and soft start from precharged load
• Protection features such as short circuit, output overvoltage, and overtemperature
• Cycle by cycle input overcurrent protection, precision enable UVLO with hysteresis
• 16 lead WSOIC package, operating temperature range from -40°C to 125°C

Opmerkingen

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