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Analog Devices LTC4286 | Demoboard EVAL-LTC4286-A1Z
High Power Positive Hot-Swap Controller with Power Monitor via PMBus
Overview
| Topology | Other Topology |
| Input voltage | 8.5-80 V |
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.
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 VOUTAvailable in 39-lead, 7 mm x 7 mm, QFN package
Typical applications
- Industrial
- 12 V/24 V/48 V/54 V Distributed power systems
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | λDom typ.(nm) | Emitting Color | λPeak typ.(nm) | IV typ.(mcd) | VF typ.(V) | Chip Technology | 2θ50% typ.(°) | To | W(mm) | H(mm) | Tl(mm) | PCB Thickness min.(mm) | PCB Thickness max.(mm) | Surface | IR(A) | Packaging | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WL-SMCW SMT Mono-color Chip LED Waterclear, 525 nm, Green | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear | Dominant Wavelength [typ.]525 nm | Emitting ColorGreen | Peak Wavelength [typ.]515 nm | Luminous Intensity [typ.]450 mcd | Forward Voltage [typ.]3.2 V | Chip TechnologyInGaN | Viewing Angle Phi 0° [typ.]140 ° | – | Width1.25 mm | Height0.7 mm | – | – | – | – | – | PackagingTape and Reel | MountSMT | ||||
| WL-SMCW SMT Mono-color Chip LED Waterclear, 625 nm, Red | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear | Dominant Wavelength [typ.]625 nm | Emitting ColorRed | Peak Wavelength [typ.]630 nm | Luminous Intensity [typ.]150 mcd | Forward Voltage [typ.]2 V | Chip TechnologyAlInGaP | Viewing Angle Phi 0° [typ.]140 ° | – | Width1.25 mm | Height0.7 mm | – | – | – | – | – | PackagingTape and Reel | MountSMT | ||||
 | WP-SHFU REDCUBE PRESS-FIT with external thread, full plain, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | – | – | – | – | – | – | – | Outer ThreadM6 | Width13 mm | Height15.5 mm | Thread Length10 mm | PCB Thickness min.1.6 mm | PCB Thickness max.3.2 mm | SurfaceTin | Rated Current250 A | PackagingTray | MountPress-Fit |