ADP1071-2ACCZ-RL

Overview

The ADP1071-2ACCZ-RL is an isolated synchronous flyback controller from Analog Devices, designed for high-efficiency DC-to-DC conversion. It integrates a PWM current mode controller with an iCoupler digital isolator to provide galvanic isolation between primary and secondary sides. The device supports a switching frequency range of 50 kHz to 600 kHz and operates within an input voltage range of 4.5 V to 36 V. It features a maximum duty cycle of 85% and functions reliably across temperatures from -40°C to +125°C. Packaged in a 24-pin LGA (4x8 mm) form factor, it simplifies design by eliminating the need for external optocouplers and bias windings.

Feature Summary

• Integrates iCoupler technology for precise digital isolation without external optocouplers
• Supports synchronous rectification to enhance efficiency at light loads
• Features programmable switching frequency for optimized magnetic component selection
• Includes built-in protection mechanisms for robust operation

Applications

• Isolated power supplies for industrial automation systems
• Telecommunications infrastructure equipment
• Medical device power modules requiring strict isolation standards
• Consumer electronics adapters with high efficiency requirements

Procurement Notes

Verify the specific suffix ACCZ-RL against the manufacturer's latest datasheet to confirm package type and reel specifications. Ensure compatibility with your PCB footprint for the 24-pin LGA package. Check for any recent product change notifications or lifecycle status updates from Analog Devices prior to finalizing procurement plans.

Selection Notes

Select this component when designing isolated flyback converters requiring high accuracy and minimal external components. The integrated iCoupler reduces board space and improves reliability compared to traditional optocoupler-based designs. Consider the thermal performance of the LGA package and ensure adequate copper area for heat dissipation during high-load operations.

Part Context

This part belongs to the ADP1071 family of synchronous flyback controllers. Variants such as ADP1071-1ACCZ differ primarily in pinout configurations or specific feature sets tailored for different transformer coupling needs. All members share the core architecture of combining PWM control with digital isolation for enhanced performance in compact power designs.

Replacement Considerations

Direct substitutes may include other Analog Devices flyback controllers with similar isolation features, such as the ADP1070 series, provided pinouts and electrical characteristics match. Verify that alternative parts support the required switching frequency range and input voltage specifications.