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Product Detailed Parameters
- Description：IC HOT SWAP CTRLR GP 32LFCSP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tray
- Type：Hot Swap Controller, Monitor
- Number of Channels：1
- Internal Switch(s)：No
- Applications：General Purpose
- Features：PMBus
- Programmable Features：Auto Retry, Current Limit, Fault Timeout, Latched Fault, OVP, Slew Rate, UVLO
- Voltage - Supply：4.5V ~ 20V
- Current - Output (Max)：-
- Operating Temperature：-40°C ~ 85°C
- Current - Supply：5.5 mA
- Mounting Type：Surface Mount
- Package / Case：32-WFQFN Exposed Pad, CSP
- Supplier Device Package：32-LFCSP (5x5)
- Grade：-
- Qualification：-
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Overview
The ADM1278-2ACPZ is a hot swap controller and digital power and energy monitor featuring a PMBus interface. It integrates a 12-bit ADC for current, voltage, and temperature monitoring. The device supports adjustable current limiting and includes protection features such as overvoltage, undervoltage lockout, and fault timeout. It operates within a supply voltage range of 4.5V to 20V and is housed in a 32-lead LFCSP package.
Feature Summary
- Integrates a 12-bit ADC for precise measurement of load current, input/output voltage, and temperature via the PMBus interface.
- Provides comprehensive protection including programmable current limits, overvoltage/undervoltage thresholds, and fault handling with auto-retry or latch modes.
- Supports constant power foldback to enforce strict FET Safe Operating Area (SOA) limits during fault conditions.
Applications
- Server backplane insertion and removal
- Telecommunications equipment power management
- Data communication system power distribution
Procurement Notes
Verify the specific suffix '2' against official Analog Devices documentation to confirm channel configuration and pinout compatibility. Confirm RoHS compliance status and moisture sensitivity level prior to assembly. Check for obsolescence notices or lifecycle changes on the manufacturer website before finalizing procurement plans.
Selection Notes
Select this component when integrated digital power monitoring with PMBus connectivity is required alongside hot swap capabilities. Ensure the 20V maximum supply voltage aligns with the system bus requirements. Verify that the 32-lead LFCSP package fits the available PCB footprint and thermal design constraints.
Part Context
The ADM1278 belongs to Analog Devices' family of hot swap controllers with digital power monitoring. It is designed for applications requiring precise control and monitoring of power delivery to sensitive loads. The device simplifies board-level power management by combining switching control with high-resolution data acquisition.
Replacement Considerations
The ADM1281 is documented as a direct replacement for the ADM1278 series. Verify pin-to-pin compatibility and feature parity with the ADM1281 datasheet before substitution.
