ADM1278-2ACPZ-RL

Overview

The ADM1278-2ACPZ-RL is a hot swap controller designed for inserting or removing circuit boards from live backplanes. It integrates a 12-bit analog-to-digital converter (ADC) to enable current, voltage, and power readback via the PMBus interface. The device operates within a supply voltage range of 4.5V to 20V and supports surface mount installation in a 32-LFCSP package. Key programmable features include automatic retry, current limiting, fault timeout, latch fault, overvoltage protection, slew rate control, and under-voltage lockout.

Feature Summary

• Integrates a 12-bit ADC for precise monitoring of electrical parameters
• Supports hot insertion and removal from energized backplanes
• Provides comprehensive protection through programmable fault handling mechanisms
• Enables digital communication and configuration via PMBus interface

Applications

• Telecommunications equipment requiring safe board replacement
• Industrial automation systems with live backplane architectures
• Data center infrastructure components needing power monitoring

Procurement Notes

Verify component authenticity by checking manufacturer markings against official documentation. Confirm package integrity and pin alignment prior to assembly. Ensure compatibility with existing PMBus protocols in the system design. Review datasheet specifications for operating temperature and voltage limits to validate application suitability.

Selection Notes

Select this component when integrated hot swap control and digital power monitoring are required in a single solution. The built-in 12-bit ADC eliminates the need for external sensing circuits. Consider the 32-LFCSP package constraints for PCB layout. Verify that the system voltage range aligns with the 4.5V to 20V operational specification.

Part Context

This part belongs to the ADM1278 family of hot swap controllers from Analog Devices. It is specifically designated as the -2 variant, which typically implies specific internal configuration or feature set differences compared to other suffixes like -1. The family is designed for robust power management in high-reliability applications.

Replacement Considerations

The ADM1278-1ACPZ-RL is listed as an obsolete alternative. Verify functional equivalence and pin compatibility before substitution. Check for any changes in internal switch characteristics or protection thresholds between variants.