• 4.5V to 20V Input Voltage Range
• ±0.6% Accurate, 12-Bit ADC for VIN, VOUT, IOUT, and Temperature Measurement
• Split Hot Swap and Power Monitor Inputs for Additional External ADC Filtering
• 320ns Response Time to Short-Circuit Events
• Resistor-Programmable Current Limit of 5mV to 25mV VSENSE
• Programmable Start-Up Current Limit
• 1% Accurate UV, OV, and PWRGD Thresholds
• Remote Temperature Sensing withConfigurable Warning and Shutdown Thresholds
• Shutdown After Detecting MOSFET Health Faults
• FAULT_N Open Drain Output
• Multi-functional GPO Output Pin:

          - SMBAlert Mode

          - General-purpose Digital Output Mode

          - Digital Comparator Mode

          - CONV Function Mode

• Reports Power and Energy Consumption Over Time
• Peak Detection Registers for Voltage, Current, and Power Monitoring
• PROCHOT Power Throttling Capability for Precise Control of System Power Usage
• PMBus Fast-Mode Compliant Interface and SPI Interface
• Moisture Sensitivity Level (MSL): 3
• QFN 5x5-32 Package

The SQ24905CQEQ is a hot swap controller designed to facilitate the safe removal and insertion of a live circuit board into a backplane. It includes a 12-bit analog-to-digital converter (ADC) for monitoring current, power, voltage and temperature via a PMBus interface. The load current is measured using an internal current sense amplifier, with a default current limit of 20mV that can be adjusted as needed.

This controller limits the current through the power path using an external N-channel MOSFET, controlled by the GATE pin. It also features overvoltage and undervoltage protection and a PWRGD signal to monitor the output supply. Additionally, it includes fast internal overcurrent detection and a RETRY pin for configuring automatic retry or latch-off in the event of an overcurrent fault.

The SQ24905CQEQ is available in a 32-lead QFN5x5 package.