General Description
The MAX5913A/MAX5914A are quadruple hot-swap controllers. The MAX5913A/MAX5914A independently control four external n-channel switches to hot-swap system loads from a single VCC supply line. The devices allow the safe insertion and removal of power devices from live network ports. The operating supply voltage range is between +35V and +72V. The devices are intended for applications in Power-Over-Media-Dependent Interface (MDI), but are not limited to such usage.

Features
♦ Wide Operating Input Voltage Range: +35V to +72V
♦ IEEE® 802.3af Compatible
♦ Four Independent Power Switch Controllers
♦ Open-Circuit Detector
♦ On-Board Charge Pumps to Drive External n-Channel FETs
♦ Current Sense with External Resistor
♦ Foldback Current Limiting
♦ +32V Input Undervoltage Lockout
♦ On-Chip +12V, 100mA Voltage Relay Drivers

Applications
    Power-Over-LAN
    Power-Over-MDI
    IP Phone Switches/Routers
    Telecom Line Cards
    Network Switches/Routers
    Midspan Power-Over-MDI