MAX5923EUP+

The MAX5923EUP+ 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

Applications

Communications & Networking, Industrial

Warnings

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party