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Quad high side smart power solid state relay evaluation board using the VNI4140K

The purpose of this design is to demonstrate the features of the VNI4140K quad high side smart power solid state relay. The application offers robustness and complies with EMC industrial standards. It implements short-circuit/overload protection and thermal management as well, achieving best-in-class MTBF values. The reference design is suitable for use in programmable logic controllers (PLCs) as well as to drive generic loads which require up to 0.7 A of nominal current (the typical current limitation is 0.7 - 1.7 A). Thanks to the very low RDS(on) (only 80 m typ. @ 25 °C per channel) the device allows very low power consumption during operation and for this reason making it an ideal solution for IP65 / IP67 requirements. The device is compliant with IEC 61131-2 (Programmable Controllers International Standard).

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Data Brief

Key Features

  • Shorted load protections
  • Junction over-temperature protection
  • Case over-temperature protection for thermal independence of the channels
  • Thermal case shut-down non-simultaneous restart for the various channels
  • Protection against loss of ground
  • Current limitation
  • Undervoltage shut-down
  • Open drain diagnostic outputs
  • 3.3 V CMOS/TTL compatible inputs
  • Fast demagnetization of inductive loads
  • Conforms to IEC 61131-2


Design Resources


Technical Documentation

Product Specifications

Description Version Size
DB0537: Quad high side smart power solid state relay evaluation board using the VNI4140K
1.2 127 KB

Application Notes

Description Version Size
AN2684: STEVAL-IFP006V1: designing with VNI4140K quad high-side smart power solid-state relay ICs
1.2 764 KB

Hardware Resources

Board Manufacturing Specification

Description Version Size
STEVAL-IFP006V1 gerber files
1.0 116 KB

Bill of Materials

Description Version Size
3.2 7 KB

Schematic Pack

Description Version Size
STEVAL-IFP006V1 schematics
1.0 24 KB

Sample & Buy

Part Number Marketing StatusCore ProductOrder From STUnit Price (US$)*
@ 1
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STEVAL-IFP006V1NRNDVNI4140KBuy Direct73.31Distributor reported inventory date: 2016-02-08
Distributor NameRegionStockMin. order
Newark Element14Order NowAMERICA80

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
(**) The Material Declaration forms available on may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
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