STMicroelectronics STEVAL-PCC019V1

Overview

STEVAL-PCC019V1 from STMicroelectronics is a USB-to-I²C trimming interface evaluation board with integrated active CC/CV electronic load, designed to digitally trim SEA01-based constant-voltage/constant-current power supplies without external instruments. It provides bidirectional USB–I²C bridging at 100 kHz, on-board 19 V programming supply for SEA01 NVM, galvanic isolation between PC and target, and precision voltage/current measurement (0.1% / 1%). Used in lab validation of digitally programmable power controllers.

For engineers reviewing the STEVAL-PCC019V1 datasheet, STEVAL-PCC019V1 pinout, STEVAL-PCC019V1 application, or STEVAL-PCC019V1 equivalent, key selection considerations include its self-powered USB operation, triple isolated I²C buses (one fully isolated), embedded 25 V / 10 A active load, real-time GUI-based trimming and curve tracing, and compatibility with SEA01-based CV/CC supply architectures.

Technical Context

The board implements a hardware-isolated USB-to-UART-to-I²C protocol bridge using CP2102 (USB-to-serial) and STM32F373CCT6 (UART-to-I²C conversion), with optocoupler-based signal isolation (ACPL-M61L) and three DC-DC modules (NMK0512SC, NMD050515SC) maintaining separation between USB, MCU, and load domains. I²C speed is fixed at 100 kHz to match SEA01 timing limits.

It integrates a thermally monitored active load based on STP160N75F3 MOSFET, driven by LM358 op-amps and controlled via DAC outputs; voltage/current sensing uses precision resistors (0.05% tolerance) and TC74A0 temperature sensor; calibration references include LM4041 1.22 V shunt and self-calibrated ADC paths referenced to either AGND or VLOAD_N.

Key Specifications

Availability

STEVAL-PCC019V1 is available at Aetrix Electronics and suitable for power supply validation, SEA01-based digital trimming development, and embedded CV/CC controller qualification requiring stable component supply and documented evaluation infrastructure.

Supply support for STEVAL-PCC019V1 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, analog ICs, power management, and automotive-grade silicon.

This board belongs to ST's STEVAL (ST Evaluation) series-designed specifically to accelerate prototyping and validation of ST's proprietary power control ICs like the SEA01, with emphasis on digital trimming, system-level power characterization, and isolated interface reliability.

FAQ

Does STEVAL-PCC019V1 require an external power supply?

No. The board is self-powered exclusively from the host PC's USB port (5 V). Three isolated DC-DC converters generate +3.3 V for the MCU, +15 V for the SEA01 programming rail, and +24 V for the active load driver stage-eliminating need for auxiliary supplies.

Can STEVAL-PCC019V1 trim multiple SEA01 devices simultaneously?

Yes. It provides three independent I²C buses: I²C1 and I²C2 share the same ground domain and are intended for primary-side SEA01 devices; I²C3 is fully galvanically isolated and supports secondary-side SEA01 trimming-even across different ground potentials-enabling multi-rail or isolated supply validation.

What software is required to operate STEVAL-PCC019V1?

The official ST-provided Windows GUI application is required. It communicates via virtual COM port (CP2102 driver), supports real-time voltage/current trimming, live CC/CV mode verification, and one-button characteristic curve tracing. No third-party drivers or SDKs are needed for basic operation.

Is STEVAL-PCC019V1 still in production?

No. STMicroelectronics has marked STEVAL-PCC019V1 as obsolete (as noted in DocID027093 Rev 1, October 2014). However, Aetrix Electronics maintains legacy inventory and offers technical support, documentation access, and lifecycle coordination for existing designs dependent on this evaluation platform.