ADM1278-1BCPZ-RL

Overview

The ADM1278-1BCPZ-RL is a hot swap controller designed to allow circuit boards to be inserted into or removed from live backplanes. It integrates a 12-bit analog-to-digital converter (ADC) for monitoring current, voltage, and power via the PMBus interface. The device operates within a supply voltage range of 4.5V to 20V and draws 5.5 mA of supply current. It features programmable characteristics including automatic retry, current limiting, fault timeout, lockout fault, overvoltage protection, slew rate control, and UVLO. The component is housed in a 32-LFCSP (5x5) package and supports surface mount installation.

Feature Summary

• Enables safe insertion and removal of circuit boards from energized backplanes
• Integrates a 12-bit ADC for precise electrical parameter monitoring
• Supports digital power management through PMBus communication
• Includes comprehensive protection mechanisms such as OVP and UVLO

Applications

• Telecommunications equipment backplane systems
• Industrial automation control panels
• Data center server blade insertion modules

Procurement Notes

Verify the specific suffix '1B' against the official Analog Devices datasheet to confirm pin compatibility and functional specifications. Ensure the 32-LFCSP package dimensions match the target PCB footprint. Confirm that the PMBus interface requirements align with the host system's digital logic levels. Check for any recent product change notices regarding manufacturing updates.

Selection Notes

Select this component when integrated hot swap protection and digital power monitoring are required in a compact form factor. The built-in 12-bit ADC eliminates the need for external sensing circuits. Consider the 4.5V to 20V operating range to ensure compatibility with the system bus voltage. Evaluate the thermal performance within the 32-LFCSP package for the intended application environment.

Part Context

This part belongs to the ADM1278 family of hot swap controllers manufactured by Analog Devices Inc. The family provides solutions for protecting circuits during board insertion and removal. The ADM1278 variant specifically combines power switching control with high-resolution digital monitoring capabilities, distinguishing it from basic hot swap switches without feedback interfaces.

Replacement Considerations

Public confirmed substitute part numbers include ADM1278-1ACPZ-RL. Verify that the alternative maintains identical pinout and functionality before implementation.