STMicroelectronics EVALSTGAP2HSM

Overview

EVALSTGAP2HSM from STMicroelectronics is a demonstration board for the STGAP2HSM isolated 4 A single gate driver IC, designed to evaluate high-voltage half-bridge power stages up to 1200 V with TO-220/TO-247 MOSFETs or IGBTs. It integrates dual onboard 5.2 kV isolated DC-DC converters, supports configurable gate drive voltages (+15/0 V, +15/−3 V, +19/0 V, +19/−3 V), and provides 3.3 V logic supply generation.

For engineers reviewing the EVALSTGAP2HSM datasheet, EVALSTGAP2HSM pinout, EVALSTGAP2HSM application, or EVALSTGAP2HSM equivalent, this board enables rapid validation of negative gate driving, independent source/sink control, UVLO, thermal shutdown, and hardware interlocking in industrial motor drive and high-power inverter designs.

Technical Context

The board implements two identical STGAP2HSM gate drivers - each featuring rail-to-rail 4 A source/sink capability, 75 ns propagation delay, and 6000 V galvanic isolation - configured for high-side and low-side switching in a half-bridge topology. Input logic supports 3.3 V/5 V TTL/CMOS with hysteresis, and dual IN+/IN− pins enable polarity selection and hardware interlock.

Onboard MGJ2D051509SC isolated DC-DC converters supply ±15 V or ±19 V gate drive rails from a single 5 V VAUX input, achieving 5.2 kV isolation between primary and secondary sides. Jumper-selectable configurations (JP1–JP18) allow precise tuning of gate resistors, bootstrap decoupling, and protection thresholds without soldering.

Key Specifications

Availability

EVALSTGAP2HSM is available at Aetrix Electronics and suitable for industrial motor drives, high-voltage UPS systems, and renewable energy inverters requiring stable component supply and fast prototyping support.

Supply support for EVALSTGAP2HSM 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 automotive, industrial, and power management solutions with broad IP and manufacturing scale.

EVALSTGAP2HSM belongs to ST's power discrete & driver evaluation platform family, engineered specifically to accelerate development of robust, high-efficiency gate driver subsystems for 600–1200 V industrial power conversion applications.

FAQ

What power switch packages does EVALSTGAP2HSM support?

The board supports TO-220 and TO-247 packaged MOSFETs and IGBTs, with dedicated mounting footprints and thermal pads aligned to ST's recommended layout guidelines for 1200 V half-bridge operation. Both packages are electrically isolated from the driver section via GNDISO_H and GNDISO_L separation.

Can EVALSTGAP2HSM operate with only a 5 V input?

Yes - VAUX = 5 V powers both onboard MGJ2D051509SC isolated DC-DC converters and the 3.3 V regulator. No additional supply is required; all gate drive rails, logic voltage, and bias are derived internally from this single input.

How is negative gate driving implemented on this board?

Negative gate driving is achieved by jumper configuration (e.g., JP4/JP5 closed for −3 V offset) that routes the isolated DC-DC converter's negative output to the GOFF pin through dedicated RC networks. This enables active Miller clamp and improved shoot-through immunity during high-speed switching.

Does EVALSTGAP2HSM include hardware interlock capability?

Yes - each STGAP2HSM channel has separate IN+ and IN− inputs. Wiring one channel's IN+ to another's IN− (or using external logic) creates hardware-level interlock, preventing simultaneous high-side/low-side conduction even if the main controller fails.