GENERAL DESCRIPTION

The ADM1276 is a hot swap controller that allows a circuit board to be removed from or inserted into a live backplane. It also features current and voltage readback via an integrated 12-bit analog-to-digital converter (ADC), accessed using a PMBus™ interface.

FEATURES

Controls supply voltages from 2 V to 20 V

370 ns response time to short circuit

Resistor-programmable 5 mV to 25 mV current limit

±1 accurate, 12-bit ADC for current, VIN/VOUT readback

Charge pumped gate drive for multiple external N-channel FETs

High gate drive voltage to ensure lowest RDSON

Foldback for tighter FET SOA protection

Automatic retry or latch-off on current fault

Programmable current-limit timer for SOA

Programmable, multifunction GPO

Power-good status output

Analog UV and OV protection

ENABLE pin

Reports power and energy consumption over time

Peak detect registers for current and voltage

PMBus fast mode compliant interface

20-lead LFCSP

APPLICATIONS

Power monitoring and control/power budgeting

Central office equipment

Telecommunication and data communication equipment

PCs/servers