Vishay Logo

Analog eFuse, 80 V, 0.6 mΩ Si MOSFET

This design's power stage uses 80 V Si TrenchFET® MOSFETs with a total resistance of 0.6 mΩ, handling continuous currents of up to 100 A in 48 V systems. Due to their low on-resistance, these MOSFETs allow the design to operate continuously at maximum current with less than 14 W of losses, enabling passive cooling. The eFuse power stage is controlled by analog circuitry for precharge control, overcurrent detection, and continuous current monitoring. The eFuse latches off once an overcurrent exceeding the user-defined threshold is detected and can be re-enabled by the user.

Reference

<p>48 V 100 A eFuse</p><p>Reference Design - 48 V 100 A eFuse</p>

Diagram 1

Features

  • Disconnect loads in under 2 μs
  • Precharging of DC-link capacitors in power electronics
  • Resettable fuse
  • Adjustable current limit

Products

MOSFET: SQJQ184E

Automotive N-Channel 80 V (D-S) 175 °C MOSFET

Resistor: WSLP3921,

WSLP5931 Power Metal Strip® Resistors, Very High Power (to 15 W), Low Value (Down to 0.0001 Ω), Surface-Mount

Resistor: D2TO35

Surface Mount Power Resistor Thick Film Technology

Resistor: MMU

0102, MMA 0204, MMB 0207 - Professional Professional Thin Film MELF Resistors

Optocoupler: VOMA617A

Optocoupler, Phototransistor Output, Low Input Current, SOP-4, Mini-Flat Package

Download

All reference designs provided by Vishay Intertechnology, Inc. and its affiliates (collectively “Vishay”) are provided “as is”. Vishay makes no warranties or representations with regard to the reference designs, express, implied or statutory, including accuracy or completeness. Vishay disclaims any warranty of title and any implied warranties of merchantability, fitness for a particular purpose, quiet enjoyment, quiet possession, and non-infringement of any third-party intellectual property rights with regard to Vishay's reference designs or use thereof. Vishay shall not be liable for and shall not defend or indemnify buyers against any third-party infringement claim that relates to or is based on a combination of components provided in a Vishay reference design. In no event shall Vishay be liable for any actual, special, incidental, consequential or indirect damages, however caused, on any theory of liability and whether or not Vishay has been advised of the possibility of such damages, arising in any way out of Vishay reference designs or Buyer's use of Vishay reference designs.
Analog eFuse with PreCharge Bidirectional, 80 V, 0.6 mΩ Si MOSFET | Vishay | Vishay