ADP1071-1ACCZ-RL

Overview

The ADP1071-1ACCZ-RL is a pulse-width modulation (PWM) current mode fixed frequency synchronous flyback controller designed for isolated DC-to-DC power supplies. It integrates Analog Devices' proprietary iCouplers, eliminating the need for bulky signal transformers. The device operates within a switching frequency range of 50 kHz to 600 kHz and supports a maximum duty cycle of 85%. It features a single output configuration and functions reliably across an operating temperature range from -40°C to +125°C.

Feature Summary

• Integrates proprietary iCoupler technology to provide isolation without external signal transformers
• Utilizes PWM current mode control for precise regulation in synchronous flyback topologies
• Includes dedicated light load management capabilities to enhance efficiency at low power levels

Applications

• Isolated DC-DC converter designs
• Industrial power supply systems
• Telecommunications equipment power stages

Procurement Notes

Verify the specific suffix ACCZ-RL against official Analog Devices documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with your PCB footprint and reflow profile requirements. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and current availability status before finalizing procurement plans.

Selection Notes

Select this component when designing isolated synchronous flyback converters requiring integrated digital isolation. The fixed frequency operation simplifies filter design compared to variable frequency alternatives. Consider the thermal performance within the specified -40°C to +125°C range for harsh environment applications. Evaluate the 600 kHz maximum switching frequency against core loss constraints in your transformer design.

Part Context

This part belongs to the ADP1071 family of isolated synchronous flyback controllers. The series is characterized by the integration of high-speed digital isolators, which reduces board space and improves reliability by removing magnetic coupling components for control signals. The ADP1071-1 variant specifically targets single-output applications within this family.

Replacement Considerations

Official substitutes include the ADP1071-2 variants for dual-output configurations or the ADP1071-1ACCZ non-reel version for bulk packaging needs. Verify pinout compatibility and electrical parameters before substituting.