ADM1278-1BCPZ

Overview

The ADM1278-1BCPZ is a hot swap voltage controller and digital power monitor manufactured by Analog Devices Inc. It features an integrated 12-bit analog-to-digital converter (ADC) for monitoring current, power, voltage, and temperature via a PMBus interface. The device supports a supply voltage range of 4.5 V to 20 V and operates within a temperature range of -40°C to +85°C. It utilizes a 32-lead LFCSP package with dimensions of 5 mm x 5 mm.

Feature Summary

• Integrated 12-bit ADC provides high-precision digital readback of electrical parameters
• PMBus interface enables programmable control and configuration
• Supports automatic retry or latch-off modes for fault handling
• Includes constant power foldback for enhanced FET SOA protection

Applications

• Server systems
• Power monitoring and control
• Telecommunications equipment
• Data communication devices

Procurement Notes

Verify the specific suffix 'BCPZ' against official documentation to confirm pinout and functional compatibility. Confirm availability status as distribution channels may list obsolete or limited stock items. Ensure the selected variant matches the required thermal and electrical specifications for the target application environment.

Selection Notes

Select this component when precise digital power monitoring is required alongside hot swap capabilities. The integrated ADC eliminates the need for external sensing amplifiers. Consider the PMBus interface requirements for system integration. Evaluate the 32-lead LFCSP package constraints for PCB layout and thermal management needs.

Part Context

This part belongs to the ADM1278 family of hot swap controllers designed for positive voltage applications. It serves as a direct replacement for certain legacy parts while offering enhanced digital monitoring features. The family is optimized for protecting circuits during insertion and removal from live backplanes.

Replacement Considerations

The ADM1281 is a confirmed public substitute for the ADM1278 series.