ADP1043ACPZ

Overview

The ADP1043ACPZ is a secondary side power supply controller IC designed for isolated AC/DC and DC/DC applications. It integrates a digital control loop with an I2C interface, enabling remote configuration via a GUI or microcontroller. The device supports primary and secondary side current sensing, synchronous rectifier control, and hot-swap functionality. Key features include remote and local voltage sense, extensive fault detection, and an integrated programmable loop filter. It operates within a temperature range of -40°C to +85°C and is housed in a 32-lead LFCSP package.

Feature Summary

• Integrates a digital control loop with an I2C interface for flexible system management
• Supports primary and secondary side current sensing along with synchronous rectifier control
• Provides comprehensive protection including overvoltage, undervoltage lockout, and current limiting

Applications

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

Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm pinout and electrical characteristics. Confirm availability status as distribution channels may list limited stock or end-of-life conditions. Ensure the selected package matches the PCB footprint requirements. Validate that the operating temperature range meets the target application environment specifications before finalizing procurement.

Selection Notes

Select this component when designing isolated power converters requiring digital flexibility and reduced external component count. The integrated digital filter and I2C interface simplify tuning and monitoring compared to analog counterparts. Consider the thermal performance of the LFCSP package for high-density designs. Ensure the design utilizes the recommended external components for stability and protection circuits as specified in the datasheet.

Part Context

The ADP1043 belongs to Analog Devices' family of digital power controllers optimized for high-reliability infrastructure. It replaces traditional analog PWM controllers by offering programmable parameters through software. This integration reduces design time and allows for adaptive control strategies in complex power systems.

FAQ

Does the ADP1043 support synchronous rectification?

Yes, the ADP1043 includes dedicated synchronous rectifier control capabilities.

How is the device configured?

Configuration is performed via an I2C interface using a graphical user interface or a microcontroller.