STMicroelectronics EVALSTGAP2SCM

Overview

EVALSTGAP2SCM from STMicroelectronics is a demonstration board for the STGAP2SCM isolated 4 A single gate driver, designed to evaluate high-voltage half-bridge power stages with up to 1700 V rating using TO-220 or TO-247 IGBTs/MOSFETs/SiC switches. It integrates on-board isolated DC-DC converters (5 V input → +15/–3 V output), supports configurable gate drive voltages (+15/0 V, +15/–3 V, +19/0 V, +19/–3 V), and features UVLO, thermal shutdown, and 3.3 V/5 V TTL/CMOS inputs with hysteresis.

For engineers reviewing the EVALSTGAP2SCM datasheet, EVALSTGAP2SCM pinout, EVALSTGAP2SCM application, or EVALSTGAP2SCM equivalent, this board enables rapid validation of STGAP2SCM's 4 A source/sink capability, 100 ns propagation delay, Miller clamp functionality, negative gate driving support, and dual-input hardware interlock for cross-conduction prevention in industrial motor drives and high-power inverters.

Technical Context

The EVALSTGAP2SCM implements the STGAP2SCM gate driver in a fully assembled, test-ready configuration optimized for half-bridge evaluation. It provides independent logic-level inputs (IN+/IN−) for polarity selection and hardware interlocking, and uses Murata MGJ2D051509SC isolated DC-DC modules to generate gate supply rails without external bias sources.

Board-level design includes configurable jumpers (JP1, JP5–JP22) to select gate voltage configurations, test points (TP4, TP8–TP23) for signal probing, and layout-optimized high-voltage isolation barriers between primary and secondary sides-supporting safe operation at up to 1700 V DC bus voltage with proper creepage/clearance compliance.

Key Specifications

Availability

EVALSTGAP2SCM is available at Aetrix Electronics and suitable for industrial motor drives, high-power inverters, SiC-based EV chargers, and renewable energy converters requiring stable component supply and validated gate driver evaluation platforms.

Supply support for EVALSTGAP2SCM 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 power management, analog, microcontrollers, and automotive-grade ICs.

The EVALSTGAP2SCM belongs to ST's power evaluation board portfolio, developed specifically to accelerate design-in of their isolated gate drivers in high-reliability industrial and energy systems.

FAQ

What power devices can be evaluated with the EVALSTGAP2SCM?

The board supports N-channel IGBTs or MOSFETs rated up to 1700 V in TO-220 or TO-247 packages, including silicon carbide (SiC) switches. Users must select and mount Q1/Q2 per application requirements; no power devices are included on the board.

Does the EVALSTGAP2SCM support negative gate driving?

Yes - jumper-selectable configurations include +15/–3 V and +19/–3 V, enabling active Miller clamp and negative turn-off voltage to improve noise immunity and prevent spurious turn-on in high-dV/dt environments.

How is isolation implemented on the EVALSTGAP2SCM?

Isolation is achieved through the STGAP2SCM's integrated galvanic isolation barrier and reinforced by Murata MGJ2D051509SC isolated DC-DC converters, which generate gate supply rails from a single 5 V auxiliary input while maintaining >5 kVRMS isolation rating.

Can the EVALSTGAP2SCM be used with the STGAP2SM variant?

Yes - the board is compatible with both STGAP2SCM (single output + Miller clamp) and STGAP2SM (separate source/sink outputs); schematic Figures 1 and 2 in the data brief confirm dual-variant support via configurable component placement and jumper settings.