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Four-channel high-end intelligent power supply solid-state relay demonstration board based on VNI4140K-32

STEVAL-IFP019V1

Overview

The STEVAL-IFP019V1 demonstration board shows the features of the VNI4140K-32 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 also thermal management, 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 1 A of nominal current (the typical current limitation is 1.1 - 2.6 A). Thanks to the very low R_DS(on)(only 80 mΩ typical @ 25 °C per channel) the device allows very low power consumption during operation and for this reason it offers an ideal solution for IP65 / IP67 requirements. The VNI4140K-32 is compliant with IEC 61131-2 (international standard for programmable controllers).

Main features

Output current: 1 A per channel
Shorted load protections
Junction overtemperature protection
Case overtemperature protection for thermal independence of the channels
Thermal case shutdown non-simultaneous restart for the various channels
Protection against loss of ground
Current limitation

Undervoltage shutdown
Open drain diagnostic outputs
3.3 V CMOS/TTL compatible inputs
Fast demagnetization of inductive loads
Conforms to IEC 61131-2
RoHS compliant

Design Files

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2025-08-08 23:22:05

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