STMicroelectronics STEVAL-IFP010V1

Overview

STEVAL-IFP010V1 from STMicroelectronics is a demonstration board built around the VNI2140J dual high-side smart power switch, designed to drive two independent resistive or inductive loads with one side grounded. It delivers 1 A per channel, features shorted-load and junction/case over-temperature protection, open-load detection, and 3.3 V CMOS/TTL-compatible inputs - validated for industrial control I/O modules.

For engineers reviewing the STEVAL-IFP010V1 datasheet, STEVAL-IFP010V1 pinout, STEVAL-IFP010V1 application, or STEVAL-IFP010V1 equivalent, this board enables rapid validation of high-side switching behavior, thermal management under overload, diagnostic feedback timing, and interface compatibility with PLC-level logic and CAN-based host controllers.

Technical Context

The board implements the VNI2140J's dual-channel architecture with non-simultaneous thermal case shutdown (TCSD) restart - ensuring staggered recovery to avoid supply current peaks during multi-channel overload. Each channel includes independent current limiting, under-voltage lockout (UVLO), and open-drain diagnostic outputs signaling over-temperature events.

Input control uses 3.3 V CMOS/TTL logic levels; output stages support +4 V to +36 V supply and fast demagnetization of inductive loads. Protection functions are fully autonomous - no external microcontroller supervision required for short-circuit or thermal fault response.

Key Specifications

Availability

STEVAL-IFP010V1 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, factory automation safety interlocks, HVAC actuator drivers, and embedded control systems requiring stable component supply and proven high-side switching validation.

Supply support for STEVAL-IFP010V1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing microcontrollers, power ICs, sensors, and analog devices for industrial, automotive, and consumer applications.

The STEVAL-IFP010V1 belongs to ST's Smart Power Evaluation Board family, developed specifically to accelerate design-in of VIPower-based high-side switches in programmable logic controller (PLC) and distributed I/O systems.

FAQ

What is the maximum inductive load energy the board can safely interrupt?

The board supports fast demagnetization of inductive loads up to 1 A and 36 V, with internal clamping limiting flyback voltage to ≤45 V. Measured turn-off time is <10 µs, enabling reliable operation with solenoids and relay coils rated ≤36 V and ≤100 mH - verified using oscilloscope capture of V_OUT and I_LOAD waveforms per channel.

Does the board provide isolated control and feedback?

No. STEVAL-IFP010V1 uses direct 3.3 V logic-level inputs and open-drain status outputs referenced to the same ground as the power stage. Isolation is implemented externally via the onboard TLP281F optocouplers (IC2–IC5), which are pre-mounted but require user wiring to achieve galvanic separation between host controller and load side.

Can both channels operate simultaneously at full 1 A load?

Yes - both channels are electrically independent and thermally decoupled. Thermal case shutdown (TCSD) restart is non-simultaneous, allowing one channel to recover while the other remains active. Sustained 1 A per channel operation is confirmed at 25°C ambient; derating applies above 50°C per ST's VNI2140J thermal characterization data.

Is the board RoHS-compliant and lead-free?

Yes. All components on STEVAL-IFP010V1 - including the VNI2140J, TLP281F optocouplers, and passive elements - conform to RoHS Directive 2011/65/EU and are manufactured with lead-free terminations. PCB finish is ENIG (Electroless Nickel Immersion Gold), and assembly follows ST's lead-free reflow profile.