STMicroelectronics STEVAL-IPMNG8Q

Overview

STEVAL-IPMNG8Q from STMicroelectronics is an evaluation board for the STGIPQ8C60T-HZ SLLIMM-nano 3-phase IGBT inverter IPM, integrating six short-circuit rugged 600 V/8 A trench-gate IGBTs with freewheeling diodes, three half-bridge HVIC gate drivers, op-amp-based current sensing, and comparator-based overcurrent protection. It supports TTL/CMOS 3.3 V/5 V/15 V logic inputs, features 1800 V_rms/min isolation, and targets compact ACIM and BLDC motor drives in white goods.

For engineers reviewing the STEVAL-IPMNG8Q datasheet, STEVAL-IPMNG8Q pinout, STEVAL-IPMNG8Q application, or STEVAL-IPMNG8Q equivalent, this page delivers verified technical context, validated pin mapping, real-world motor control use cases, supply-chain-ready availability, and manufacturer-specific design guidance - all grounded in ST's DS11492 Rev 7 documentation and official application circuit examples.

Technical Context

The STEVAL-IPMNG8Q implements a complete 3-phase inverter reference design centered on the STGIPQ8C60T-HZ N2DIP-26L IPM, which embeds three independent half-bridge gate drivers with bootstrap circuits, undervoltage lockout (V_CC UVLO: 12.0 V turn-on, 10.5 V turn-off), and interlocking logic to prevent shoot-through. Each driver controls one IGBT pair rated at 600 V V_CES, 8 A continuous collector current, and 5 µs short-circuit withstand time at T_J = 125 °C.

It integrates uncommitted analog functions: a rail-to-rail op-amp (input offset voltage ≤6 mV, GBWP ≥8 MHz) for shunt-based phase current amplification, and a comparator (internal 0.54 V reference, 130 ns delay) tied to the CIN pin for fast overcurrent detection. The T/SD/OD pin serves dual roles - NTC thermistor interface and active-low shutdown input - with built-in pull-down/pull-up resistors enabling direct MCU interfacing without external biasing.

Key Specifications

Availability

STEVAL-IPMNG8Q is available at Aetrix Electronics and suitable for dishwasher motor control, washing machine drive systems, fan speed regulation, and PMSM/BLDC inverter development requiring stable component supply, rapid prototyping support, and production-grade validation paths.

Supply support for STEVAL-IPMNG8Q 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 specializing in power management, motion control, and microcontroller solutions for industrial, automotive, and appliance markets.

The SLLIMM-nano product line delivers compact, isolated, high-reliability intelligent power modules optimized for space-constrained, thermally demanding motor drive applications - particularly built-in motor inverters in white goods and low-power industrial drives.

FAQ

What is the primary function of the STEVAL-IPMNG8Q evaluation board?

The STEVAL-IPMNG8Q is a fully assembled and tested reference design platform for the STGIPQ8C60T-HZ IPM, enabling rapid validation of 3-phase motor control algorithms. It provides accessible test points for all 26 pins, pre-routed bootstrap networks, decoupling capacitors per V_CC/V_BOOT, NTC thermistor interface, op-amp signal conditioning, and comparator-based fault output - eliminating layout risk during early firmware and protection logic development.

How does the T/SD/OD pin operate in dual-mode functionality?

The T/SD/OD pin combines NTC thermistor monitoring and active-low shutdown input via internal resistor networks: a 125 kΩ pull-down enables direct connection to an MCU GPIO for fault signaling, while the same pin connects internally to an NTC thermistor (ground-referenced). When used as a temperature sensor, a 1–2.2 kΩ external pull-up sets V_SD to track temperature (e.g., 4.5 V at 25 °C → 2.5 V at 100 °C); when used as SD, pulling it below 0.8 V disables all three half-bridges within 200 ns.

Can the integrated op-amp be used for bidirectional current sensing?

Yes - the uncommitted op-amp (pins OP+, OP−, OPOUT) supports both unidirectional and bidirectional shunt-based current sensing. With proper external gain-setting resistors and single-supply biasing (V_CC = 15 V), it achieves rail-to-rail output swing (0.075–14.7 V), 3.8 V/µs slew rate, and 85 dB CMRR, enabling accurate reconstruction of phase currents across full PWM duty cycles, including zero-crossing regions critical for field-oriented control (FOC) of PMSM/BLDC motors.

What are the critical PCB layout requirements for reliable operation?

Four layout rules are mandatory: (1) Keep HIN/LIN traces under 10 cm and add RC filters (R1 ≈ 100 Ω, C1 ≈ 1 nF) within 5 mm of IPM pins to suppress ringing; (2) Place C_BOOT (≥1 µF ceramic) and C₃ (100–220 nF) directly at each V_BOOT/OUT node with shortest possible loop; (3) Route N_U/N_V/N_W and shunt resistor ground separately from power ground, connecting only at one point near the shunt; (4) Mount Zener diodes DZ1 (V_Z = 18 V) on V_CC and DZ2 (V_Z = 22 V) on each V_BOOT to clamp transients exceeding absolute maximum ratings.