ADP1043AACPZ-RL

Overview

The ADP1043AACPZ-RL is a secondary side power supply controller IC designed for isolated AC/DC or DC/DC control applications. It features a digital control loop with an integrated programmable digital filter, supporting remote and local voltage sense, primary and secondary side current sense, PWM generation, and synchronous rectifier control. The device includes hot-swap sense and control, current sharing capabilities, and extensive fault detection including current limiting, UVLO, and OVP. It utilizes an I2C interface for programming and contains 8 Kb EEPROM for standalone or microcontroller operation.

Feature Summary

• Integrates digital control loop with programmable filter for isolated power supply applications
• Supports remote and local voltage sensing alongside primary and secondary side current monitoring
• Provides comprehensive protection features including overvoltage protection, under-voltage lockout, and current limiting
• Enables synchronous rectifier control and hot-swap functionality with current sharing

Applications

• AC/DC power supplies
• Isolated DC/DC power supplies
• Redundant power supplies
• Parallel power supplies
• Server, storage, network, and communications infrastructure

Procurement Notes

Verify the specific suffix 'RL' indicates reel packaging when sourcing. Confirm compatibility with existing I2C bus configurations and EEPROM programming requirements. Ensure thermal management aligns with the LFCSP package specifications. Validate that the digital control parameters meet the isolated power supply design constraints before integration.

Selection Notes

Select this component for designs requiring minimal external component count and maximum flexibility in isolated power conversion. It is suitable for applications needing precise digital regulation and extensive fault protection. Consider the I2C interface requirements and EEPROM capacity for configuration needs. Evaluate the need for synchronous rectification and hot-swap capabilities to determine if this controller meets the system architecture.

Part Context

The ADP1043AACPZ-RL belongs to the ADP1043 family of digital controllers for isolated power supplies. It is manufactured by Analog Devices Inc. and is part of their Power Management ICs portfolio. The device is designed to optimize design time and component count while providing robust control functions for modern power infrastructure.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.