Dual high side smart power solid state relay

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 overtemperature 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 overtemperature conditions and open-load in off state.

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 VCC detection
  • Open-drain diagnostic outputs
  • 3.3 V CMOS/TTL compatible inputs
  • Fast demagnetization of inductive loads
  • Conforms to IEC 61131-2

Circuit Diagram

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Technical Documentation

Product Specifications
Description Version Size
DS5977 DS5977: Dual high side smart power solid state relay 9.0 615 KB
Application Notes
Description Version Size
AN2985 AN2985: STEVAL-IFP010V3: designing with VNI2140J dual high-side smart power solid-state relay IC 2.1 1 MB
Technical Notes & Articles
Description Version Size
TA0345 TA0345: Dual high side switches in smart power technology 1.0 169 KB

Publications and Collaterals

Selection Guides
Description Version Size
Intelligent power switches (IPS) 11.2017 3 MB
Description Version Size
Brochure Power management guide 09.2017 3 MB

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Sample & Buy

Part Number Package Packing Type Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
VNI2140JTR PowerSSO 12 Tape And Reel Active 1.299 1000 NEC EAR99 MOROCCO MORE INFO Get Sample Add to cart DISTRIBUTOR AVAILABILITY

(*) 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

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
VNI2140J ActivePowerSSO 12-Ecopack1 0 0
VNI2140JTR ActivePowerSSO 12-Ecopack1 0 0

(**) The Material Declaration forms available on st.com 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.