The UCC21521DWR from Texas Instruments is a state-of-the-art isolated dual-channel gate driver designed for high-efficiency, high-power applications. This robust and reliable gate driver is ideal for driving power switches like IGBTs, SiC MOSFETs, and GaN HEMTs, providing precise and efficient control over your power conversion systems.

Key Features

• Isolation Rating: The UCC21521DWR offers reinforced isolation of 5.7 kV RMS for 1 minute per UL 1577 and can withstand an isolation voltage of 3 kV PK per VDE V 0884-10, providing excellent protection against high voltage transients and ensuring safe operation in high-voltage environments.
• Dual-Channel: With two independent channels, this gate driver can control two different gates simultaneously or be used in a half-bridge configuration. Each channel has a 4-A source and 6-A sink current capability, ensuring strong drive performance for a variety of power devices.
• Propagation Delay: The device boasts a typical propagation delay of 19 ns with 5-ns channel-to-channel skew, allowing for precise timing control and fast switching, which is crucial for improving power efficiency and reducing switching losses.
• Robustness: UCC21521DWR is equipped with CMTI (Common-Mode Transient Immunity) of 100 V/ns, ensuring stable operation in noisy electrical environments, and it is also immune to negative transients on the switching node, further enhancing its robustness.
• Wide Operating Range: It can operate over a wide temperature range of -40°C to 125°C, making it suitable for industrial environments and demanding applications.

Applications

The UCC21521DWR is versatile and can be used in various applications, including motor drives, power supplies, renewable energy inverters, and high-power lighting systems. Its high isolation and dual-channel operation make it an excellent choice for systems that require reliable and efficient power management.

Package and Availability

This gate driver comes in a compact 16-pin SOIC package (DWR suffix), which is suitable for surface mount technology (SMT) and easy to integrate into a wide range of PCB designs. The UCC21521DWR is available for order and can be sourced directly from Texas Instruments or through authorized distributors.