Контроллеры напряжения с возможностью горячей замены MAX5923EUP+

Контроллер горячей замены , ограничитель тока, маршрутизаторы/коммутаторы сети, 16В - 60В питание

The MAX5923EUP+ from Maxim Integrated Products is a +60V simple swapper hot-swap switch in 20 pin TSSOP package. The MAX5923 is a fully integrated Simple Swapper™ hot-swap switch for positive supply rails. The device allows the safe insertion and removal of circuit cards into live backplanes or ports without causing glitches on the power-supply rail. The device also monitors various circuit parameters and disconnects the load if a fault condition occurs, alerting the host with a logic level FAULT(active-low) output. During start-up, an integrated 0.45ohm power MOSFET regulates current and voltage between the backplane power source and the load. After start-up, the MOSFET is fully enhanced to reduce its on-resistance. To ensure robust operation, the MAX5923 contains built-in safety features that monitor fault conditions and prevent damage to the internal MOSFET. The MAX5923 monitors 3 parameters for fault conditions such as zero current, overcurrent and thermal overload.

• Input voltage range from +16V to +60V
• Programmable output current up to 800mA
• Over
• undercurrent limit detection
• Input logic signals compatible with 1.8V to 5V CMOS logic
• Separate analogue and digital grounds with up to ±4V offset
• Power-OK status output
• Overcurrent protection with status outputs, built-in thermal shutdown
• Internal switch protection circuitry
• Current-limit foldback with timeout and duty cycle control

• Latch or autorestart fault management, operating temperature range from -40°C to 85°C

Области применения

Связь и Сеть, Промышленное