General Description

The MAX4271/MAX4272/MAX4273 comprise a complete family of integrated 3V to 12V hot-swap controllers. They allow the safe insertion and removal of circuit cards into live backplanes.

Features

♦ Provide Safe Hot Swap for +3V to +12V Power Supplies with Few External Components

♦ Unique Current Regulation Architecture Minimizes n-FET Linear Mode Duration

♦ Autoretry Feature (MAX4272/MAX4273)

♦ DualSpeed/BiLevel Current Limit Protects Against Current Glitches and Short Circuits

♦ Power-On RESET (MAX4273)

♦ 15V Absolute Maximum Rating Protects Against Inductive Kickbacks During Board Removal

♦ Internal Charge Pump Generates Gate Drive for External n-MOSFET

♦ Status Output Pin Indicates Fault/Safe Condition

♦ Space-Saving 8-Pin SO, 16-Pin QSOP Packages

Applications

Base Stations

RAID

Remote-Access Servers

Network Routers and

Switches

ISDN