STMicroelectronics STEVAL-IPMNM1S

Overview

STEVAL-IPMNM1S from STMicroelectronics is a compact motor control power evaluation board built around the SLLIMM-nano intelligent power module STIPNS1M50T-H, delivering up to 60 W output with 0.6 A nominal current and 125–400 VDC input voltage. It supports field-oriented control (FOC) via three-shunt or single-shunt current sensing, Hall/encoder interface, and hardware overcurrent/temperature protection.

For engineers reviewing the STEVAL-IPMNM1S datasheet, STEVAL-IPMNM1S pinout, STEVAL-IPMNM1S application, or STEVAL-IPMNM1S equivalent, this board enables rapid validation of 3-phase inverter topologies for white goods, HVAC compressors, and industrial fans using STM32-based control boards.

Technical Context

The board implements a 3-phase IGBT/MOSFET inverter stage using the STIPNS1M50T-H IPM, integrating six 500 V MOSFETs, three high-voltage gate drivers, internal temperature sensing (NTC), undervoltage lockout, and smart shutdown logic. Bootstrap capacitors, snubber networks, and dedicated current-sensing op-amps ensure stable switching up to 20 kHz.

It provides dual current sensing paths: configurable for three external op-amps, MCU-internal amplifiers, or the IPM's single embedded op-amp - enabling precise phase current reconstruction required for FOC algorithms. Hall/encoder inputs are routed to standard 3.3 V/5 V logic-level headers for direct MCU interfacing.

Key Specifications

Availability

STEVAL-IPMNM1S is available at Aetrix Electronics and suitable for HVAC compressor drives, refrigerator fan inverters, air purifier blower controls, and industrial pump motor evaluation requiring stable component supply and fast time-to-test capability.

Supply support for STEVAL-IPMNM1S 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 ICs, sensors, and analog/mixed-signal devices for industrial, automotive, and consumer markets.

This board belongs to ST's STEVAL motor control evaluation platform family, engineered to accelerate development of energy-efficient, sensorless or sensor-based FOC motor drives using their SLLIMM-nano IPMs and STM32 MCUs.

FAQ

Does STEVAL-IPMNM1S include an integrated microcontroller?

No. The board is a power stage only and does not contain an MCU. It interfaces via a 32-pin connector to external ST control boards such as the X-NUCLEO-IHM07M1 or STM32 Nucleo boards, which provide the control logic, PWM generation, and FOC algorithm execution.

What is the maximum switching frequency supported by the STIPNS1M50T-H IPM on this board?

The STIPNS1M50T-H IPM is rated for operation up to 20 kHz, and the STEVAL-IPMNM1S board's gate drive network, bootstrap circuitry, and layout are optimized for reliable performance at this frequency under 60 W load conditions with appropriate heatsinking.

Can the board operate with single-shunt current sensing only?

Yes. The board supports single-shunt configuration using the IPM's internal op-amp or external op-amps, with appropriate jumper settings and signal routing. The schematic shows dedicated traces and test points (TP11–TP13) for phase-A/B/C shunt connections in both configurations.

Is the STEVAL-IPMNM1S RoHS and WEEE compliant?

Yes. As stated in the official data brief DB3681 Rev 2, the board complies with both RoHS Directive 2011/65/EU and WEEE Directive 2012/19/EU, ensuring environmentally responsible material content and end-of-life handling per EU regulatory requirements.