ADM1281 Datasheet PDF | Analog Devices

Analog Devices ADM1281

The ADM1281 is a hot-swap controller that allows a circuit board to be removed from or inserted into a live backplane. It also features current, voltage, power, and temperature readback through an integrated 12-bit analog-to-digital converter (ADC), accessed using a PMBus™ interface. The load current is measured using an internal current sense amplifier that measures the voltage across a sense resistor in the power path through the HS+ and HS− pins.

Part No.	ADM1281
Datasheet	ADM1281 Download
Manufacturer	Analog Devices
Description	Hot-Swap Controller and Digital Power and Energy Monitor
Buy	Stock & Price

FEATURES

► Drop-in replacement to ADM1278 ► ±0.3% accurate, 12-bit ADC for IOUT, VIN, VOUT, and temperature ► 290 ns response time to short-circuit ► Shutdown on detection of FET health fault ► Constant power foldback for tighter FET SOA protection ► Remote temperature sensing with programmable warning and shutdown thresholds ► Resistor-programmable 5 mV to 25 mV VSENSE current limit ► Programmable start-up current limit ► 1% accurate UV, OV, and PWRGD thresholds ► Split hot-swap and power monitor inputs to allow additional external ADC filtering ► Reports power and energy consumption over time ► Peak detect registers for current, voltage, and power ► PROCHOT power throttling capability ► PMBus fast mode compliant interface ► Available in 5 mm × 5 mm, 32-lead LFCSP package

APPLICATIONS

► Servers ► Power monitoring and control/power budgeting ► Telecommunication and data communication equipment

GENERAL DESCRIPTION

A default current limit of 20 mV is set, but this limit can be adjusted, if required.