LTC4286

RECOMMENDED FOR NEW DESIGNS

High Power Positive Hot-Swap Controller with Power Monitor via PMBus

Part Models
2
1ku List Price
Starting From $7.69
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Part Details

  • 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
High Power Positive Hot-Swap Controller with Power Monitor via PMBus
LTC4286 Pin Configuration LTC4286 Functional Block Diagram
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Tools & Simulations

LTspice 1


Models for the following parts are available in LTspice:

  • LTC4286

LTpowerPlay®

LTpowerPlay® is a powerful, Windows-based development environment supporting Linear Technology's Digital Power System Management (PSM) products.

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LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.


Evaluation Kits

eval board
EVAL-LTC4286

Evaluating the LTC4286 High Voltage Positive Hot Swap Controller with Power Monitor and PMBus

Features and Benefits

  • Fully functional evaluation kit board for the LTC4286
  • Populated with 54 V, 36 A, 1 mF design
  • 40 V undervoltage and 60 V overvoltage settings
  • Flexible N channel MOSFET footprint suits different packages
  • Supports up to 12 parallel sense resistors and six parallel MOSFETs
  • LED indicated status outputs
  • Wide input voltage range: 8.5 V to 80 V
  • 100 V absolute maximum
  • MOSFET temperature measurement capability
  • I2C/PMBus communication

Product Details

EVAL-LTC4286-A1Z is a fully featured evaluation board for the LTC4286. The board layout provides a clear example of all the peripheral components and the hot-swap power path. The layout also maximizes the ability of the board to dissipate heat for some of the key components on the power path, allowing the evaluation of high-current hot-swap setups.

Twelve sense resistor footprints and six (three on the bottom side) multipackage metal-oxide semiconductor field-effect transistor (MOSFET) footprints provide great flexibility and allow a wide range of application setups.

Multiple test points allow easy access to all critical points and pins. Seven light emitting diodes (LEDs) provide direct visual indication of board status, such as supply input, output, SDA, SCL, ALERT, power good, and fault.

The board supports PMBus communication, allowing the user to communicate with the LTC4286.

The board is fully compatible with the LTpowerPlay® evaluation software, which can be downloaded from the LTpowerPlay page.

A USB-to-I2C controller (DC1613A) is required to use the evaluation software.

The standard evaluation kit is prepopulated and tested with a 54 V, 36 A hot-swap design capable of working with a 1 mF output capacitor.

Full specifications on the LTC4286 are available in the LTC4286 data sheet available from Analog Devices, Inc., and must be consulted with the user guide when using the EVAL-LTC4286-A1Z evaluation board.

EVAL-LTC4286
Evaluating the LTC4286 High Voltage Positive Hot Swap Controller with Power Monitor and PMBus
EVAL-LTC4286 Evaluation Board EVAL-LTC4286 Evaluation Board - Top View EVAL-LTC4286 Evaluation Board - Bottom View

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