ST Life.augmented


Dual high side smart power solid state relay
  • active Active

The VNI2140J is a monolithic device designed using STMicroelectronics' VIPower technology. The device drives two independent resistive or inductive loads with one side connected to ground. Active current limitation prevents a drop in system power supply in cases of shorted-load, and built-in thermal shutdown protects the chip from damage due to over-temperature and short-circuit. In overload conditions, channel turns OFF and ON automatically to maintain the junction temperature between TTSD and TR. If the case temperature reaches TCSD, the overloaded channel is turned OFF and restarts only when case temperature decreases down to TCR. In order to avoid high-peak current from the supply, when more than one channel is overloaded the TCSD restart is not simultaneous. Non overloaded channels continue to operate normally. The open-drain diagnostics output indicates over-temperature conditions and open-load in off state.

pdf Please read
Errata Sheet
pdf Download

Key Features

  • Nominal current: 0.5 A per channel
  • Shorted load protections
  • Junction overtemperature protection
  • Case overtemperature protection for thermal independence of the channels
  • Thermal case shutdown restart not simultaneous for the various channels
  • Protection against loss of ground
  • Current limitation 1 A per channel
  • Undervoltage shutdown
  • Open load in off-state and short to VCCdetection
  • Open-drain diagnostic outputs
  • 3.3 V CMOS/TTL compatible inputs
  • Fast demagnetization of inductive loads
  • Conforms to IEC 61131-2

Circuit Diagram

Design Resources


Technical Documentation

Product Specifications

Description Version Size
DS5977: Dual high side smart power solid state relay
8.0 616 KB

Application Notes

Description Version Size
AN2985: STEVAL-IFP010V3: designing with VNI2140J dual high-side smart power solid-state relay IC
2.1 1,554 KB

Technical Notes & Articles

Description Version Size
TA0345: Dual high side switches in smart power technology
1.0 169 KB

Related Tools and Software

Related Tools and Software

Part Number Description
STEVAL-IFP010V3 High-side driver based on the VNI2140J

Sample & Buy

Part Number Marketing StatusPackagePacking TypeAutomotive GradeOrder From STUnit Price (US$)*
@ 1000
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
VNI2140JActivePowerSSO 12Tube_-1.299Distributor reported inventory date: 2016-02-29
Distributor NameRegionStockMin. order
Farnell Element14Order NowEUROPE1901
VNI2140JTRActivePowerSSO 12Tape And Reel_Free Samples1.299Distributor reported inventory date: 2016-02-29
Distributor NameRegionStockMin. order
ARROWOrder NowAMERICA25002500

(*) 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.