STMicroelectronics STGAP2HSCMTR

Overview

STGAP2HSCMTR from STMicroelectronics is a galvanically isolated 4 A single-channel high-side gate driver IC for IGBTs and MOSFETs in half-bridge topologies, featuring Miller clamp functionality, 100 V/ns CMTI, 75 ns max propagation delay, and 3.3 V/5 V TTL/CMOS-compatible inputs - deployed in industrial motor drives, UPS inverters, and PFC stages.

For engineers reviewing the STGAP2HSCMTR datasheet, STGAP2HSCMTR pinout, STGAP2HSCMTR application, or STGAP2HSCMTR equivalent, key selection criteria include isolation rating (3.5 kVRMS), separate sink/source configuration support, UVLO thresholds (8.6–9.6 V on VH), thermal shutdown (170 °C), and SO-8W wide-body package compatibility with high-voltage power stage layouts.

Technical Context

The STGAP2HSCMTR implements dual-input logic control (IN+, IN−) with deglitch filtering (20–40 ns), enabling hardware interlocking to prevent cross-conduction. Its isolated floating section supports unipolar or bipolar gate driving via VH supply (up to 26 V) referenced to GNDISO.

It integrates a dedicated CLAMP pin with 1.3–2.6 V threshold and 4 A clamp current capability to suppress Miller-induced turn-on during high-dV/dt switching events in 600 V/1200 V inverters - critical for reliable operation in fast-switching SiC and high-speed IGBT applications.

Key Specifications

Pinout & Package

STGAP2HSCMTR uses a wide-body SO-8W package (7.5 mm × 10.3 mm, 2.64 mm height) with 8-pin layout optimized for creepage/clearance ≥ 8 mm per IEC 60664-1 and reinforced galvanic isolation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-side isolated gate driver applications.

Compared with Si8273BD and UCC5390SCD, STGAP2HSCMTR uniquely combines UL-recognized 3.5 kVRMS isolation, a user-accessible CLAMP pin for external threshold tuning, and SO-8W packaging with 8 mm creepage - making it optimal for certified industrial inverters and safety-compliant battery chargers.

Availability

STGAP2HSCMTR is available at Aetrix Electronics and suitable for industrial motor drives, uninterruptible power supplies (UPS), and power factor correction (PFC) systems requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for production ramp-up.

Supply support for STGAP2HSCMTR 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, designing and manufacturing microcontrollers, power ICs, sensors, and analog devices for industrial, automotive, and consumer markets.

STGAP2HSCMTR belongs to ST's STGAP family of isolated gate drivers, engineered specifically for high-reliability, high-voltage power conversion systems demanding reinforced insulation, fast switching accuracy, and integrated protection functions.

FAQ

What is the purpose of the CLAMP pin on STGAP2HSCMTR?

The CLAMP pin provides an active Miller current path during high-side switch turn-off in half-bridge configurations. When the external transistor's gate voltage drops below 1.3–2.6 V, the internal clamp switch activates, connecting the gate to GNDISO to prevent unintended turn-on caused by dV/dt coupling through the Miller capacitance - critical for stable operation with SiC MOSFETs and fast IGBTs.

Can STGAP2HSCMTR drive both IGBTs and SiC MOSFETs?

Yes - its 4 A sink/source capability, 26 V gate drive voltage range, and 75 ns propagation delay support gate charging of high-Qg IGBTs (e.g., 600 V/1200 V modules) and low-threshold SiC MOSFETs. The Miller clamp function and 100 V/ns CMTI further ensure robustness in fast-switching SiC applications up to 1 MHz.

How does the standby mode reduce power consumption?

When IN+ and IN− are held HIGH for >280 µs, STGAP2HSCMTR enters standby mode, reducing VH quiescent current to 400–550 µA and VDD current to 40–65 µA. Output remains in safe state (GOUT actively pulled low), eliminating static gate leakage losses while preserving fast wake-up (<35 µs) upon input transition.

What isolation certifications apply to STGAP2HSCMTR?

STGAP2HSCMTR is certified to IEC 60747-17 (VDE 0884-17) for basic insulation and recognized under UL 1577 with VISO = 3.5 kVRMS (60 s), VIORM = 1.2 kVPEAK, and VIOTM = 5.0 kVPEAK. It meets 8 mm creepage/clearance requirements per IEC 60664-1, qualifying for reinforced insulation in industrial equipment.