ADP1046AACPZ-RL

Overview

The ADP1046AACPZ-RL is a flexible digital secondary side controller designed for AC-to-DC and isolated DC-to-DC power supply applications. It integrates typical PWM controller functions, including seven PWM control signals and a digital control loop with programmable filters. The device supports voltage feedforward, remote/local voltage sense, primary/secondary current sense, synchronous rectifier control, and current sharing via an I2C interface. It features extensive fault detection, fast digital calibration, and user-accessible EEPROM.

Feature Summary

• Integrates comprehensive PWM control functions with a digital control loop and programmable loop filters
• Supports voltage feedforward and dedicated soft start filter to maximize efficiency
• Enables precise regulation through remote and local voltage sensing capabilities
• Facilitates system redundancy and load balancing via synchronous rectifier and current sharing controls

Applications

• AC-to-DC power supplies
• Isolated DC-to-DC power supplies
• Redundant power supply systems
• Server, storage, network, and communications infrastructure

Procurement Notes

Verify the specific suffix 'ACPZ-RL' against the manufacturer's official datasheet to confirm package type and reel quantity specifications. Ensure compatibility with the intended PCB footprint and reflow profile requirements. Confirm that the I2C interface addresses and EEPROM programming methods align with the system design constraints before finalizing procurement.

Selection Notes

Select this component for designs requiring high-efficiency isolated power conversion with advanced digital control capabilities. It serves as a pin-compatible enhancement over the ADP1043A, offering improved loop response and voltage feedforward. Consider its integration of synchronous rectifier control and current sharing features when designing redundant or multi-phase systems.

Part Context

The ADP1046A belongs to Analog Devices' family of digital secondary side controllers. It is designed to replace traditional analog PWM controllers in high-performance power supplies. The part offers enhanced flexibility through digital programming and telemetry, allowing for optimized performance across various industrial and communication infrastructure applications.

Replacement Considerations

The ADP1046A is pin-compatible with the ADP1043A. Verify functional differences such as voltage feedforward and loop response improvements when substituting. Ensure software configuration and EEPROM settings are updated to leverage the new features.