LTC4286 Datasheet | Analog Devices

FEATURES - Wide operating voltage range: 8.5 V to 80 V - Monitors currents, voltages, and power with ADC - Adjustable, 5% accurate current limit: 6 m V to 20 m V - Current foldback limits MOSFET power dissipation for overstress protection - Monitors VGS and VDS for MOSFET health - Peak detect registers for current, voltage, and power - Reports input or output power - Remote temperature sensing with programmable warning and shutdown thresholds - ±1% accurate, 12-bit ADC for IOUT, VIN, and VOUT - Available in 39-lead, 7 mm x 7 mm, QFN package APPLICATIONS - High availability server backplane systems - 12 V/24 V/48 V/54 V Distributed power systems - Industrial TYPICAL APPLICATION GENERAL DESCRIPTION The LTC4286 is an integrated solution for hot-swap applications allowing a board to be safely inserted and removed from a live backplane. The circuit breaker timer protects against metal-oxide semiconductor field-effect transistor (MOSFET) overheating, enabling reliable protection against overstress. The SMBus 3.1 interface, PMBus mand structure, and onboard analog-to-digital converter (ADC) with selectable averaging and speed allow monitoring of board current, voltage, power, temperature, and fault status. The LTC4286 has additional features to respond to input undervoltage (UV) and overvoltage (OV): interrupts the host when a fault occurs, notifies when output power is good, detects insertion of a board, and auto-reboot after a programmable delay following a host manded turn off. Figure 1. 54 V, 1100 W Hot-Swap Controller Rev. 0 DOCUMENT FEEDBACK TECHNICAL SUPPORT Information furnished by Analog Devices is believed to be accurate and reliable "as is". However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices....