STMicroelectronics STEVAL-IFP029V1

Overview

STEVAL-IFP029V1 from STMicroelectronics is an evaluation board for the IPS4260L quad low-side intelligent power switch, designed to validate high-speed switching (up to 100 kHz), programmable current limiting (default 1 A), and configurable cut-off delay (default 2 ms) in industrial load control applications. It integrates dual-channel high-speed opto-isolation, thermal shutdown signaling via LED D3, and open-load detection via LED D2.

For engineers reviewing the STEVAL-IFP029V1 datasheet, STEVAL-IFP029V1 pinout, STEVAL-IFP029V1 application, or STEVAL-IFP029V1 equivalent, this board enables rapid functional validation of IPS4260L's diagnostic feedback, reverse polarity protection (Schottky D1/D8), surge immunity (TVS U2/U8/U9), and GUI-driven configuration via STEVAL-PCC009V2 interface.

Technical Context

The board implements galvanic isolation between logic and power stages using high-speed dual-channel optocouplers, supporting up to 100 kHz switching frequency while maintaining signal integrity and fault feedback timing. It meets IEC61000-4-2/4/5 EMC standards with TVS devices on VCC (U8, U9) and VZ (U2), and uses a two-layer PCB layout optimized for thermal dissipation under high load currents.

Reverse polarity protection is implemented separately for VCC (via Schottky D1) and VDD (via Schottky D8); open-load detection is enabled per channel by resistors R17–R20, and thermal shutdown status is signaled through red LED D3. Current limit threshold (R23) and cut-off delay time (R4) are externally adjustable.

Key Specifications

Availability

STEVAL-IFP029V1 is available at Aetrix Electronics and suitable for industrial motor control validation, PLC output module prototyping, automotive body electronics testing, and smart actuator development requiring stable component supply and traceable evaluation hardware.

Supply support for STEVAL-IFP029V1 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, delivering silicon solutions for automotive, industrial, and consumer markets with emphasis on reliability, safety, and integration.

This board belongs to ST's Intelligent Power Switch Evaluation Platform family, engineered to accelerate adoption of protected low-side drivers in harsh industrial environments where diagnostics, isolation, and EMC robustness are critical.

FAQ

What interfaces does STEVAL-IFP029V1 support for host connection?

STEVAL-IFP029V1 connects to a Windows PC via the STEVAL-PCC009V2 USB-to-serial adapter, enabling GUI-based configuration and real-time monitoring of IPS4260L parameters including current limit, cut-off delay, and diagnostic status. No standalone firmware or external programming tools are required.

How is open-load detection implemented on this board?

Open-load detection is enabled per channel using pull-up resistors R17–R20 connected to the IPS4260L's diagnostic pins. When any output is left open in OFF state, the corresponding internal comparator triggers, illuminating red LED D2 to indicate fault condition without requiring external test equipment.

Does STEVAL-IFP029V1 provide protection against voltage transients?

Yes - it integrates three 3 kW TVS diodes: U8 and U9 protect the VCC rail, and U2 protects the VZ diagnostic rail, meeting IEC61000-4-5 surge immunity requirements. This ensures reliable operation during lightning-induced surges or inductive switching events in industrial settings.

Can the switching frequency be extended beyond 100 kHz?

No - the 100 kHz maximum is determined by the bandwidth and propagation delay of the on-board high-speed optocouplers (dual-channel type) and the IPS4260L's internal gate drive architecture. Exceeding this frequency risks timing skew, incomplete switching, and loss of diagnostic feedback fidelity.