STMicroelectronics

TD350ID

TD350ID Description

The TD350ID from STMicroelectronics is a high-side gate driver IC designed for demanding power electronics applications. Packaged in a 14-pin SO surface-mount configuration, this obsolete but robust component operates within a 12V to 26V supply range, making it suitable for high-voltage systems. It features a single-channel driver with peak output currents of 1.5A (source) and 2.3A (sink), ensuring efficient switching of power MOSFETs or IGBTs. With a fast rise/fall time of 130ns/75ns (max), it minimizes switching losses, enhancing system efficiency. The device is ROHS3 compliant and REACH unaffected, meeting environmental standards, though it is no longer in active production.

TD350ID Features

• High-Side Gate Driver: Optimized for driving high-voltage power switches with a single-channel configuration.
• Fast Switching: 130ns rise time and 75ns fall time (max) reduce power dissipation in switching applications.
• Wide Supply Range: 12V–26V operation supports diverse power architectures.
• High Peak Current: 1.5A source / 2.3A sink ensures robust gate drive capability.
• Logic Compatibility: 0.8V (VIL) / 4.2V (VIH) thresholds for reliable interfacing with control circuits.
• Robust Packaging: 14-SO tube packaging with MSL 1 (unlimited) moisture sensitivity for easy handling.

TD350ID Applications

• Motor Drives: Ideal for driving high-side switches in BLDC/PMSM motor controllers.
• Power Supplies: Suitable for SMPS and DC-DC converters requiring high-side switching.
• Industrial Inverters: Used in solar inverters and UPS systems for efficient power conversion.
• Automotive Systems: Supports high-voltage automotive applications (though obsolescence limits new designs).

Conclusion of TD350ID

The TD350ID offers a balance of high-speed switching, high current drive, and wide voltage compatibility, making it a reliable choice for legacy designs in power electronics. While obsolete, its performance in motor control, inverters, and industrial power systems remains noteworthy. Engineers seeking replacements should consider modern alternatives from STMicroelectronics’ portfolio, but the TD350ID’s specifications ensure continued utility in existing deployments.