LT4200

RECOMMENDED FOR NEW DESIGNS

50A Hot Swap E-Fuse with Guaranteed SOA

Part Models
2
1ku List Price
Starting From $5.83
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Part Details

  • Allows Safe Board Insertion into Live Backplane
  • Wide Operating Voltage Range: 2.9V to 15V
  • Guaranteed Safe Operating Area: 7.5W√s
  • 1.2mΩ MOSFET with Current Sense Element
  • ±4% Current Monitor Output
  • Adjustable Current Limit Threshold
  • Temperature Monitor Output
  • Overtemperature Protection
  • Adjustable Current Limit Timer Before Fault
  • Power Good and Fault Outputs
  • Adjustable Inrush Current Control
  • ±2.5% Accurate Undervoltage and Overvoltage Protection
  • Available in a 36-Pin (5mm × 8mm) QFN Package
LT4200
50A Hot Swap E-Fuse with Guaranteed SOA
LT4200 Application Circuit LT4200 Performance Graph LT4200 Pin Configuration
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Documentation

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Tools & Simulations

LTspice 1


Models for the following parts are available in LTspice:

  • LT4200
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-LT4200

Evaluating the LT4200 12 V, 100 A Hot Swap E-Fuse

Product Details

The EVAL-LT4200-AZ circuit board enables evaluation of two parallel LT4200 50 A hot swap E-fuses in a 100 A application. The LT4200 protects the backplane supply from glitches and sparks by controlling the inrush current during hot plug. During an output overload, the LT4200 shuts off after a delay to protect the internal power MOSFET and the backplane supply. The EVAL-LT4200-AZ includes resistive dividers for undervoltage and overvoltage protection and output power good. Turrets are provided for monitoring current, power good, fault status, and input and output voltages. Several test points allow probing of other circuit nodes. Design files for this circuit board are available at the Analog Devices, Inc. website.

eval board
DC3024A

LT4200 | 12V, 50A Hot Swap E-Fuse

Product Details

Demonstration circuit 3024A showcases the LT4200 50A hot swap E-fuse with guaranteed SOA. Included on the board are input voltage dividers for undervoltage and overvoltage protection, LEDs to indicate input voltage, output voltage, fault and power bad conditions, and jumpers to enable auto retry and to select circuit breaker delay. Turrets are provided for monitoring input voltage, output voltage, output status, and most of the pins on the LT4200.

EVAL-LT4200
Evaluating the LT4200 12 V, 100 A Hot Swap E-Fuse
LT4200 Evaluation Board Photo Angle LT4200 Evaluation Board Photo Top LT4200 Evaluation Board Photo Bottom
DC3024A
LT4200 | 12V, 50A Hot Swap E-Fuse
DC3024A Evaluation Board DC3024A Evaluation Board - Top View DC3024A Evaluation Board - Bottom View DC3024A - Measurement Equipment Setup

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