LTC4287

RECOMMENDED FOR NEW DESIGNS

High Power Positive Hot Swap Controller with Power Monitor

Data Sheet (Rev. 0) Product Selection Table

Part Models: 2
1ku List Price: Starting From $11.70

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Part Details

Drives two gates for high power applications
Wide input supply voltage range: 6.5 V to 80 V
Optimizes MOSFET SOA with multimode start-up sequencing and operation
Monitors currents, voltages, power, and energy with the ADC
Limits MOSFET temperature for overstress protection
Adjustable, 6.6% accurate (5 mV) current limit with foldback

BlackBox capturing and configuration using an optional external EEPROM
SMBus 3.1 interface and PMBus-compliant command structure
Parallelable controllers for high current levels
Minimum and maximum ADC measurements logging with alerts
Available in 48(39)-lead plastic QFN (7 mm × 7 mm) package
Configurable current foldback

Part Models: 2
1ku List Price: Starting From $11.70

Documentation

Data Sheet 1

LTC4287: High Power Positive Hot Swap Controller with Power Monitor Data Sheet (Rev.0) 10/25/2023

User Guide 1

UG-2118: Evaluating the LTC4287 High Voltage Positive Hot Swap Controller with Power Monitor and PMBus (Rev.0) 10/25/2023

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
LTC4287AUK#PBF	48(39)-Lead Plastic QFN (7mm × 7mm)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4287AUK#TRPBF	48(39)-Lead Plastic QFN (7mm × 7mm)	Material Declaration Reliablity Data	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Tools & Simulations

LTspice 1

LTC4287 - Hot Swap Controllers

Models for the following parts are available in LTspice:

LTC4287

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

Evaluating the LTC4287 High Voltage Positive Hot Swap Controller with Power Monitor and PMBus

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Features and Benefits

Fully functional evaluation board for the LTC4287 in the parallel mode
Populated with 54 V, 72 A, 5 mF design
40 V undervoltage and 60 V overvoltage settings
Flexible NMOSFET footprint suits different packages
Supports up to eight parallel sense resistors and four parallel MOSFETs in each channel

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

The EVAL-LTC4287-A1Z is a fully featured evaluation board for the LTC4287. 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.

Eight sense resistor footprints and four (two 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 LTC4287.

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, 72 A hot-swap design capable of working with a 5 mF output capacitor.

Full specifications on the LTC4287 are available in the LTC4287 data sheet available from Analog Devices, Inc., and must be consulted with this user guide when using the EVAL-LTC4287-A1Z evaluation board.

Resources

UG-2118: Evaluating the LTC4287 High Voltage Positive Hot Swap Controller with Power Monitor and PMBus (Rev.0)
2.92 M

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