STMicroelectronics STEVAL-IPMNG5Q

Overview

STEVAL-IPMNG5Q from STMicroelectronics is a compact motor control power evaluation board based on the SLLIMM-nano 2nd series intelligent power module STGIPQ5C60T-HZ, delivering up to 450 W nominal power at 3 A_RMS output current and 125–400 V_DC input voltage. It supports field-oriented control (FOC) via triple-shunt or single-shunt current sensing with on-board op-amps, Hall/encoder interface, hardware overcurrent protection, and IPM temperature monitoring - deployed in air conditioning compressors and 3-phase inverter drives.

For engineers reviewing the STEVAL-IPMNG5Q datasheet, STEVAL-IPMNG5Q pinout, STEVAL-IPMNG5Q application, or STEVAL-IPMNG5Q equivalent, this board provides verified interface compatibility with STM32-based control boards, validated three-shunt sensing topology, integrated fault signaling, and RoHS-compliant layout for rapid motor drive prototyping.

Technical Context

The board implements a 3-phase IGBT inverter stage using the STGIPQ5C60T-HZ IPM, featuring six high-voltage gate drivers with bootstrap supply, dedicated current-sensing op-amp channels (TSV994), and configurable shunt resistor networks for phase-A/B/C feedback. It integrates NTC thermistor input, EM_STOP safety input, and PWM signal routing (PWM-A-H/L through PWM-C-H/L) with precise timing alignment for FOC execution.

Hardware-level protections include instantaneous overcurrent detection via dedicated comparator circuitry, thermal shutdown triggered by IPM internal sensor, and bus voltage monitoring with RC-filtered analog feedback. The 32-pin motor control connector enables direct interfacing with ST's STM32 Nucleo or Discovery boards for closed-loop control validation.

Key Specifications

Availability

STEVAL-IPMNG5Q is available at Aetrix Electronics and suitable for air conditioning compressor drives, refrigerator fan inverters, industrial 3-phase pump controllers, and HVAC blower motor evaluation requiring stable component supply and fast-turn prototyping support.

Supply support for STEVAL-IPMNG5Q 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 automotive, industrial, and consumer markets.

This board belongs to ST's STEVAL motor control evaluation platform family, engineered to accelerate development of energy-efficient, sensor-based 3-phase motor drives using SLLIMM-nano IPMs and STM32 MCUs.

FAQ

Does STEVAL-IPMNG5Q support both sensored and sensorless FOC?

Yes. The board provides dedicated Hall/encoder input pins (J5) for sensored operation and supports sensorless FOC via three-shunt current reconstruction using on-board TSV994 op-amps and STM32 ADC sampling. The schematic confirms differential Hall inputs with configurable biasing and shunt amplifier gain paths compatible with observer-based algorithms.

What is the maximum DC bus voltage rating and how is overvoltage protected?

The board accepts up to 400 V_DC on the main bus input (J1), with snubber capacitor C2 (10 nF) and RC network (R2/R3) providing transient suppression. No active overvoltage protection circuitry is present; users must ensure upstream rectifier and bulk capacitor selection limits peak bus voltage within STGIPQ5C60T-HZ's 600 V blocking rating.

Can STEVAL-IPMNG5Q be used with non-ST microcontrollers?

Yes, but with design adaptation. The 32-pin motor control connector (J2) exposes PWM, current sense outputs, fault signals, and power rails in ST-defined pinout order. Interfacing requires matching logic levels, timing constraints (e.g., dead-time insertion), and signal conditioning - confirmed by schematic pages 2–3 showing discrete level-shifting and filtering components.

Is thermal monitoring implemented via analog or digital interface?

Thermal monitoring uses an analog NTC thermistor circuit (R7, R10, D7) feeding into the IPM's T/SD/OD pin (Pin 15 of STGIPQ5C60T-HZ), which triggers internal thermal shutdown. No digital temperature readout is provided; the board relies on hardware fault assertion rather than MCU-read temperature values.