ADM1275-3ARQZ-R7

Overview

The ADM1275-3ARQZ-R7 is a hot-swap controller and digital power monitor manufactured by Analog Devices Inc. It operates within an input voltage range of 2.95 V to 20 V and features a single channel. The device is housed in a 20-QSOP package. Key functional attributes include auto retry, current limit, fault timeout, latched fault protection, overvoltage protection (OVP), and undervoltage lockout (UVLO). This component is designed for managing power insertion and removal in live systems while providing precise monitoring capabilities.

Feature Summary

• Integrates hot-swap control with digital power monitoring functions
• Provides comprehensive fault protection including OVP, UVLO, and latched fault modes
• Supports automatic retry mechanisms for transient fault recovery

Applications

• Server blade power management
• Telecommunications equipment hot-plug interfaces
• Industrial backplane power distribution

Procurement Notes

Verify component status as the part is listed as obsolete or end-of-life. Confirm availability through authorized distributors or alternative package types. Ensure compatibility with existing design specifications before procurement. Check for valid substitution options if original supply is unavailable.

Selection Notes

Select this component for applications requiring integrated hot-swap control and power monitoring. Consider the 20-QSOP package constraints and operating voltage range. Evaluate the need for specific fault handling features like auto-retry and latched faults. Verify thermal performance requirements for the QSOP enclosure.

Part Context

This part belongs to the ADM1275 series of hot-swap controllers from Analog Devices. It is specifically engineered for high-reliability systems where live insertion and removal are required. The series emphasizes robust protection and accurate power measurement for critical infrastructure applications.

Replacement Considerations

Public confirmed substitute part numbers include ADP1875ARQZ-0.3-R7. Verify pinout and functional compatibility before replacement. Review datasheet differences regarding voltage ranges and protection thresholds.