STMicroelectronics STEVAL-IFP020V1

Overview

STEVAL-IFP020V1 from STMicroelectronics is a demonstration board implementing a single-channel, galvanically isolated industrial digital output solution using the L6370Q high-side smart power switch, delivering 2.5 A output current across 9.5–35 V supply, with short-circuit, thermal, open-load, and loss-of-ground protection.

For engineers reviewing the STEVAL-IFP020V1 datasheet, STEVAL-IFP020V1 pinout, STEVAL-IFP020V1 application, or STEVAL-IFP020V1 equivalent, this board serves as a validated reference for PLC output stage design, diagnostic interface integration, inductive load demagnetization timing, and EMC-robust industrial I/O layout.

Technical Context

The board implements a complete functional prototype of the L6370Q-based high-side driver channel, including optocoupled input isolation (TLP281), dual diagnostic outputs (DIAG1/DIAG2), LED status indication, and fast demagnetization circuitry for inductive loads. It supports TTL/CMOS-compatible 3.3 V/5 V logic inputs and provides real-time fault reporting via dedicated pins.

Galvanic isolation is achieved through discrete optocouplers and split ground planes; protection features are fully hardware-implemented-no firmware dependency-and include VS undervoltage lockout, overtemperature shutdown, and output short-to-VS/GND detection with latchable fault states.

Key Specifications

Availability

STEVAL-IFP020V1 is available at Aetrix Electronics and suitable for industrial PLC output modules, factory automation I/O subsystems, and ruggedized control panel designs requiring stable component supply, repeatable validation reference, and certified EMC performance.

Supply support for STEVAL-IFP020V1 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 management ICs, analog chips, and automotive-grade components.

The STEVAL evaluation board series targets industrial system developers, providing application-validated reference designs for ST's intelligent power switches, motor drivers, and industrial interface solutions.

FAQ

What is the primary function of the STEVAL-IFP020V1 board?

The STEVAL-IFP020V1 is a demonstration and development board for industrial digital output stages. It implements a single-channel, galvanically isolated high-side switch using the L6370Q, enabling safe, protected switching of resistive, inductive, or capacitive loads up to 2.5 A in PLC and control cabinet applications.

Does the board support inductive load switching with flyback suppression?

Yes. The board integrates the L6370Q's internal fast demagnetization path, which actively clamps inductive kickback during turn-off. This eliminates the need for external freewheeling diodes and ensures sub-microsecond energy dissipation without voltage overshoot exceeding 40 V.

How are faults reported on the STEVAL-IFP020V1?

Faults are reported via two open-drain diagnostic outputs: DIAG1 signals overcurrent or overtemperature events, while DIAG2 indicates open-load conditions or output short-to-VS/GND. Both outputs drive LEDs and can be directly interfaced to a microcontroller GPIO with pull-up resistors.

Can the board operate with both 3.3 V and 5 V logic inputs?

Yes. The input section accepts TTL/CMOS-compatible signals at either 3.3 V or 5 V logic levels. Input isolation uses TLP281 optocouplers rated for 5 kV RMS isolation, and the board includes jumper-selectable logic supply options for V_Logic rail configuration.