STGAP1S

Isolators - Gate Drivers Overview

The STGAP1S is a single-channel galvanically isolated gate driver from the gapDRIVE™ series, manufactured by STMicroelectronics. It integrates isolation and logic circuits on a single chip using BCD technology. The device supports N-channel MOSFETs and IGBTs with peak output currents of 2.5A. Key electrical parameters include a propagation delay of 100ns (datasheet) to 130ns (distributor), pulse width distortion of 10ns, and rise/fall times of 25ns. It features 2500Vrms isolation voltage and operates within a supply voltage range of 4.5V to 36V. The component is housed in a 24-SOIC package and is rated for automotive applications under AEC-Q100 standards.

Isolators - Gate Drivers Feature Summary

• Integrates galvanic isolation and control logic on a single chip to simplify design and enhance noise immunity.
• Provides advanced protection mechanisms including active Miller clamp, desaturation detection, and overvoltage protection.
• Features dual-level turn-off capability and high common-mode transient immunity exceeding ±50V/ns.
• Includes an SPI interface for communication with main controllers and real-time status monitoring.

Isolators - Gate Drivers Applications

• Industrial motor drives
• High-power inverters operating at 600V or 1200V
• Solar inverters
• Uninterruptible power supplies (UPS)

Isolators - Gate Drivers Procurement Notes

Verify current availability as the STGAP1S is listed as obsolete or discontinued by major distributors. Confirm if alternative versions or successor components are available for new designs. Check specific ordering suffixes for package variations. Ensure compliance with RoHS3 and REACH regulations. Validate that the selected variant meets the required AEC-Q100 automotive qualification if applicable for the target application environment.

Isolators - Gate Drivers Selection Notes

Select this component for applications requiring high integration and robust protection in single-channel gate driving scenarios. Consider its suitability for driving IGBTs and wide-bandgap switches like SiC MOSFETs. Evaluate the need for SPI-based diagnostics and the specific isolation voltage requirements. Assess the trade-offs between the integrated solution and discrete designs regarding board space and reliability. Verify thermal performance within the specified operating temperature range.

Isolators - Gate Drivers Part Context

The STGAP1S belongs to the gapDRIVE™ family, representing STMicroelectronics' approach to integrating isolation directly into the driver die. This architecture aims to reduce system complexity compared to traditional discrete isolation solutions. The product leverages proprietary BCD manufacturing processes to achieve high reliability and compact form factors suitable for modern power electronics.

Isolators - Gate Drivers Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the source material. As the component is marked obsolete, consult STMicroelectronics for recommended replacements or updated product lines compatible with existing designs.

Isolators - Gate Drivers FAQ

What type of isolation technology does the STGAP1S use?

The STGAP1S uses magnetic coupling technology for galvanic isolation, integrating the isolation layer directly onto the chip.

Does the STGAP1S support communication with a microcontroller?

Yes, it includes an industrial standard SPI port that allows communication with the main controller for configuration and diagnostic information retrieval.

What protection features are integrated into the STGAP1S?

It integrates active Miller clamp, desaturation detection, collector-emitter overvoltage protection, dual-level turn-off, over-temperature protection, UVLO, OVLO, and over-current detection.