STMicroelectronics STEVAL-C34KPM1

Overview

STEVAL-C34KPM1 from STMicroelectronics is an evaluation kit comprising the STEVAL-C34PM01 expansion board with TSC1641 AFE, a 34-pin FPC cable, and plug-in compatibility with STEVAL-STWINBX1. It enables high-precision monitoring of load voltage (0–60 V), bidirectional current (up to 10 A), power, and temperature via dual 16-bit ADC channels, with I²C (1 MHz) and MIPI I3C (12.5 MHz) interfaces.

For engineers reviewing the STEVAL-C34KPM1 datasheet, STEVAL-C34KPM1 pinout, STEVAL-C34KPM1 application, or STEVAL-C34KPM1 equivalent, this kit supports rapid validation of industrial power telemetry, high-speed datalogging with FP-SNS-DATALOG2, and sensor node integration on STWIN.box platforms.

Technical Context

The kit implements the TSC1641 analog front-end as a standalone expansion module, featuring configurable high-side/low-side/bidirectional current sensing using an external 5 mΩ shunt, programmable alert thresholds for over/under voltage, current, power, and temperature, and hardware-ready DRDY/AL interrupt signaling.

Conversion timing is user-selectable from 128 µs to 32.768 ms per measurement cycle; analog filtering is supported via on-board passive components; and all digital communication and power sequencing are designed for direct interoperability with the STM32-based STEVAL-STWINBX1 host platform.

Key Specifications

Availability

STEVAL-C34KPM1 is available at Aetrix Electronics and suitable for factory automation systems, industrial sensor nodes, and STWIN.box-based predictive maintenance prototypes requiring stable component supply and validated hardware interoperability.

Supply support for STEVAL-C34KPM1 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, sensors, power ICs, and analog/mixed-signal products for industrial, automotive, and IoT applications.

The STEVAL-C34KPM1 belongs to ST's STWIN (SensorTile Wireless Industrial Node) ecosystem, developed specifically to accelerate prototyping of wireless, edge-intelligent industrial condition monitoring solutions with certified sensor fusion and high-fidelity power telemetry.

FAQ

Is STEVAL-C34KPM1 compatible with boards other than STEVAL-STWINBX1?

Yes - while optimized for STEVAL-STWINBX1, the kit uses standard 34-pin expansion headers and I²C/I3C protocols, enabling integration with any host supporting 3.3 V logic, 34-pin FPC connectors, and configurable I²C address (1000000b). External pull-ups must be provided by the host.

Does the kit include the TSC1641 device or require separate procurement?

The STEVAL-C34KPM1 includes the STEVAL-C34PM01 expansion board, which integrates the TSC1641IQT AFE pre-mounted and fully routed. No additional TSC1641 procurement is needed - the IC is soldered on the board with calibrated shunt, filters, and ESD protection (ESDALC6V1-1M2).

What software support is available for data acquisition?

ST provides the FP-SNS-DATALOG2 function pack for STM32Cube, enabling real-time high-speed datalogging (up to 10 kS/s), ultrasound processing, and visualization via ST's Unicleo-GUI. Raw register access and custom firmware development are supported through HAL drivers and TSC1641 register map documentation.

Can the current sensing configuration be changed from high-side to low-side after assembly?

Yes - the board supports both configurations via jumper-selectable routing (SB1, SB2, SB4, SB5) and shunt placement options. The default 5 mΩ shunt is mounted for bidirectional sensing, but rework or alternative shunt placement allows dedicated high-side or low-side operation per application requirements.