ADP1071-1ACCZ

Overview

The ADP1071-1ACCZ is a single-output isolated synchronous flyback controller manufactured by Analog Devices Inc. It operates within a switching frequency range of 50 kHz to 600 kHz and supports a maximum duty cycle of 85%. The device functions with an operating supply voltage between 4.5 V and 36 V, drawing a typical quiescent current of 16.6 mA and a maximum supply current of 3.8 mA. It is housed in a 24-pin LGA package and is rated for operation from -40°C to +125°C.

Feature Summary

• Integrated iCoupler technology enables transformer-based isolation without requiring external optocouplers or bias windings.
• Synchronous rectification control improves efficiency by replacing standard diodes with actively driven MOSFETs.
• Programmable switching frequency allows optimization for specific design constraints regarding size and performance.

Applications

• Isolated power supplies for industrial automation systems
• Power modules for distributed power architectures
• Battery chargers requiring galvanic isolation

Procurement Notes

Verify the specific suffix ACCZ against official Analog Devices documentation to confirm the LGA-24 package configuration. Ensure compatibility with PCB footprints designed for this specific pinout. Confirm that the component meets RoHS compliance requirements for the target market. Validate that the supplier provides genuine parts with traceable manufacturing history.

Selection Notes

Select this controller when designing isolated flyback converters that require high efficiency through synchronous rectification. The integrated digital isolator simplifies layout by removing the need for optocoupler compensation networks. Consider the 24-pin LGA package for applications where board space is limited but thermal management remains critical.

Part Context

This component belongs to the ADP1071 family of isolated synchronous flyback controllers. The series utilizes proprietary iCoupler technology to provide signal and power isolation across the transformer barrier. This approach reduces component count and enhances reliability compared to traditional optocoupler-based designs.

Replacement Considerations

Public confirmed substitute part numbers: ADP1071-2ACCZ (Dual Output variant), ADP1071-1ARWZ-R7 (SOIC Package variant).