ADM1275-3ARQZ

Overview

The ADM1275-3ARQZ is a hot-swap controller and digital power monitor manufactured by Analog Devices Inc. It supports input supply voltages from 2.95 V to 20 V and operates within a temperature range of -40°C to +85°C. The device features an adjustable current limit, auto-retry functionality, fault timeout, latched fault protection, overvoltage protection (OVP), and under-voltage lockout (UVLO). It utilizes an LFCSP package and includes a PMBus interface for digital monitoring.

Feature Summary

• Enables safe insertion and removal of circuit boards into live backplanes through controlled power sequencing.
• Integrates digital power monitoring capabilities with programmable protection thresholds via PMBus.
• Provides comprehensive fault management including auto-retry, latched faults, and configurable timeouts.

Applications

• Hot-swap systems requiring board insertion or removal while powered
• Digital power monitoring in server and communication infrastructure
• Systems needing precise current limiting and voltage protection

Procurement Notes

Verify component authenticity through authorized channels due to potential counterfeit risks. Confirm package integrity and pin alignment before integration. Check for obsolescence status as this part may be discontinued. Ensure compatibility with existing PMBus software drivers. Validate thermal performance under maximum load conditions prior to deployment.

Selection Notes

Select this component when integrated digital power monitoring and hot-swap control are required in a single solution. Consider the PMBus interface for system-level diagnostics. Evaluate the operating voltage range against system requirements. Assess package size constraints relative to available PCB space. Verify that the adjustable current limit meets specific load protection needs.

Part Context

The ADM1275 series belongs to Analog Devices' portfolio of hot-swap controllers designed for high-reliability applications. This specific model integrates both analog protection circuits and digital monitoring functions. It serves as a critical component in systems requiring robust power management and real-time fault detection capabilities.

Replacement Considerations

Check official Analog Devices documentation for confirmed substitute part numbers. Verify pin-to-pin compatibility and electrical parameter equivalence. Review updated datasheets for any functional differences in newer revisions.

FAQ

What interface does the ADM1275-3ARQZ use for digital monitoring?

It uses a PMBus interface for digital power monitoring and configuration.

Is the current limit fixed or adjustable?

The current limit is adjustable, allowing customization based on application requirements.