STMicroelectronics STEVAL-IFP030V1

Overview

STEVAL-IFP030V1 from STMicroelectronics is an evaluation board for the SCLT3-8BQ7 high-speed digital input current limiter IC, designed for PLC I/O module development. It provides 8 protected high-side digital inputs with SPI serial output, adjustable 20–160 µs digital filtering, 30 V reverse polarity protection, and per-channel 78 mW power dissipation - enabling compact, thermally efficient industrial control designs.

For engineers reviewing the STEVAL-IFP030V1 datasheet, STEVAL-IFP030V1 pinout, STEVAL-IFP030V1 application, or STEVAL-IFP030V1 equivalent, key selection considerations include daisy-chain capability, 8/16-bit SPI mode with parity and alarm support, isolated/non-isolated bus interface compatibility, and integration readiness with STM32-based controller boards like STEVAL-PCC009V2.

Technical Context

The board implements the SCLT3-8BQ7's full feature set: 8-channel high-side input termination with integrated LED status indicators, on-board 5 V regulator, and configurable digital filter delay (20 µs to 160 µs). Each channel supports adjustable current limiting and reverse polarity protection up to 30 V.

It enables serialized state transfer via 2 MHz SPI interface (MOSI/MISO/SCK/CS), supports daisy-chaining multiple boards, and offers optional 16-bit mode with parity check, temperature monitoring, and supply voltage alarms - all accessible through dedicated jumpers and configuration pins.

Key Specifications

Availability

STEVAL-IFP030V1 is available at Aetrix Electronics and suitable for industrial PLC I/O module development, factory automation system prototyping, and embedded controller interface validation requiring stable component supply and rapid evaluation of high-density digital input architectures.

Supply support for STEVAL-IFP030V1 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, Switzerland, specializing in microcontrollers, power management, analog, and industrial interface solutions for automotive, industrial, and consumer applications.

The STEVAL-IFP030V1 belongs to ST's industrial evaluation board portfolio, developed specifically to accelerate adoption of the SCLT3-8BQ7 for high-reliability, space-constrained programmable logic controller I/O modules.

FAQ

What microcontroller interfaces are supported by STEVAL-IFP030V1?

The board uses standard 4-wire SPI (MOSI, MISO, SCK, /CS) compatible with STM32 series MCUs. It is validated with the STEVAL-PCC009V2 adapter board, which provides both isolated and non-isolated SPI buses for flexible integration into safety-critical or standard industrial control systems.

How is daisy-chaining implemented on this evaluation board?

Daisy-chaining is enabled via J1 (input) and J2 (output) 5-pin headers that route SPI signals and power between boards. Up to eight boards can be chained using jumper settings on JP1–JP7 to configure master/slave roles and signal routing without external wiring or level-shifting components.

Does STEVAL-IFP030V1 include reverse polarity protection circuitry?

Yes - each of the 8 input channels integrates reverse polarity protection rated to –30 V, implemented directly by the SCLT3-8BQ7 IC. No external diodes or protection devices are required, simplifying PCB layout and improving reliability in harsh industrial environments with potential wiring faults.

Can the digital input filter timing be adjusted per channel?

No - the 20–160 µs digital filter delay is globally configured via a single resistor (R12 = 1.2 kΩ default) shared across all 8 channels. This unified setting ensures consistent noise immunity while minimizing component count and calibration complexity in multi-input PLC modules.