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STGAP2SICSC: A High-Performance Gate Driver for SiC MOSFET Applications - Features, Applications & Future Prospects

June 12, 2025

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As demand for efficient power electronics surges, the STGAP2SICSC from STMicroelectronics emerges as a standout solution for Silicon Carbide (SiC) MOSFET applications. This galvanically isolated 4A gate driver combines robust performance with advanced protection features, catering to industrial power conversion and motor drives. With a compact SO-8W package and 6 kV isolation, it addresses critical market needs for reliability and space efficiency. Read on to explore how this driver can optimize your design.

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Product Overview

The STGAP2SICSC is a single-channel gate driver designed for SiC MOSFETs, offering:

  • 4A sink/source current (at 25°C) for fast switching.

  • 6 kV galvanic isolation (UL 1577 recognized).

  • Wide operating voltage: 3V to 5.5V.

  • Ultra-low propagation delay: 75 ns (max).

Its dual-configuration design (separate outputs or Miller CLAMP) enables flexibility in half-bridge topologies.

Key Specifications

ParameterValueSource
Output Current4 ASTMicroelectronics Datasheet
Isolation Voltage6 kV
Propagation Delay≤ 75 ns
Operating Temperature-40°C to +125°C
Supply Voltage3V–5.5V
PackageSO-8W (7.5mm)

Selection Guide

Choose the STGAP2SICSC when:

  1. High-speed switching is critical (30 ns rise/fall time).

  2. Designs require SiC MOSFET optimization (UVLO tailored for SiC).

  3. Space-constrained applications demand a compact SO-8W package.

Alternative: For lower current needs, consider the STGAP2DM (2.5 A driver).


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Applications

  • Industrial Motor Drives: Enhances efficiency in inverters.

  • Power Supplies: Supports high-frequency DC-DC conversion.

  • Renewable Energy: Used in solar inverters and battery storage.

  • Figure 1: Typical half-bridge application with Miller CLAMP function

Market Trends

According to Yole Développement, the SiC power device market is projected to grow at 34% CAGR (2023–2028), driven by EV and industrial automation demands. The STGAP2SICSC aligns with this trend by enabling higher switching frequencies and reduced losses.

Frequently Asked Questions

  • Q1: What is the advantage of the Miller CLAMP feature?

  • A: It prevents gate spikes during fast commutations, improving reliability in half-bridge setups.

  • Q2: Is the STGAP2SICSC RoHS compliant?

  • A: Yes, it meets RoHS standards (refer to datasheet Section 1.2).

  • Q3: Can it drive IGBTs?

  • A: While optimized for SiC MOSFETs, it can support IGBTs with adjusted gate resistors.

  • Q4: What’s the factory pack quantity?

  • A: 800 units per reel.

  • Q5: How does it compare to the STGAP2DM?

  • A: The STGAP2SICSC offers higher current (4A vs. 2.5A) and SiC-specific UVLO.

Future Developments

STMicroelectronics plans to expand the STGAP series with higher-current variants (6A+) and integrated current sensing, catering to next-gen 800V EV powertrains.

Get Started Today

Ready to integrate the STGAP2SICSC into your design? Contact our sales team for samples and pricing:

Email: [email protected]