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LTC4286 Datasheet

LTC4286 Datasheet

High Power Positive Hot-Swap Controller with Power Monitor via PMBus
Part No.: LTC4286
Page: 44 Pages
Size: KB
Manufacturer: Linear Technology
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Views: 0
Update Time: 2024-12-22 14:59:11
DataSheet: No File

LTC4286 Datasheet Applicable Part

Part No. Packing SPQ Marking MSL Pins Temp Range Package Description Buy
LTC4286AUK#PBF Tube 52 LTC4286UK 1 48 -40°C ~ 125°C 48(39)-Lead Plastic QFN (7mm × 7mm)  
LTC4286AUK#TRPBF Reel 2000 LTC4286UK 1 48 -40°C ~ 125°C 48(39)-Lead Plastic QFN (7mm × 7mm)  
LTC4286AUKM#PBF Tube 52   1 48 -40°C ~ 125°C 48-Lead Plastic QFN (7 mm x 7 mm x 0.75 mm)  
LTC4286AUKM#TRPBF Reel 2000   1 48 -40°C ~ 125°C 48-Lead Plastic QFN (7 mm x 7 mm x 0.75 mm)  
SPQ:Standard Pack Quantity;MSL:Moisture Sensitivity Level

LTC4286 Features

  • Wide operating voltage range: 8.5 V to 80 V
  • Monitors currents, voltages, and power with ADC
  • Adjustable, 5% accurate current limit: 6 mV to 20 mV
  • 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
  • Available in 48-lead, 7 mm x 7 mm, QFN package

LTC4286 Applications

  • High availability server backplane systems
  • 12 V/24 V/48 V/54 V Distributed power systems
  • Industrial

LTC4286 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 command 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 commanded turn off.

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