ADP1046ACPZ-RL

Overview

The ADP1046ACPZ-RL is a flexible digital secondary side controller designed for AC-to-DC and isolated DC-to-DC applications. It integrates typical PWM controller functions, including seven PWM control signals, a digital control loop with integrated programmable filters, and an I2C interface. The device supports remote and local voltage sensing, primary and secondary current detection, synchronous rectifier control, and OrFET redundancy management. It operates on a single 3.3 V supply and utilizes a 32-pin LFCSP package.

Feature Summary

• Integrates all typical PWM controller functions with seven dedicated control signals
• Features a digital control loop with integrated programmable loop filters and compensation
• Supports extensive fault detection, protection mechanisms, and telemetry via I2C interface
• Includes user-accessible EEPROM for programming timing, soft start, and safety features

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 (LFCSP) and reel packaging specifications. Ensure compatibility with required operating temperature ranges and I2C communication protocols before integration. Confirm that the component meets all relevant RoHS and environmental compliance standards for the intended deployment environment.

Selection Notes

Select this component for designs requiring high flexibility in secondary-side control without external analog compensation networks. The integrated digital loop filter and programmable dead-time control optimize efficiency. Consider the I2C interface requirements for system monitoring and configuration when designing the host microcontroller connection.

Part Context

The ADP1046A series serves as a pin-compatible upgrade to the ADP1043A, offering enhanced performance through voltage feedforward and improved loop response. This family targets high-efficiency isolated power conversion by minimizing external component count while providing comprehensive digital control capabilities for modern server and communication power architectures.

Replacement Considerations

The ADP1043A is a pin-compatible predecessor within the same family. Verify functional enhancements such as voltage feedforward and loop response improvements when substituting.