ISO6763-Q1

The ISO6763-Q1 is a high-reliability isolated gate driver from Texas Instruments, designed for industrial and automotive applications requiring robust electrical isolation and precise control of power semiconductors. It features a 3.5 kV RMS isolation barrier compliant with UL 1577 and IEC 60747-17 standards, ensuring safe operation in harsh environments. The device supports both N-channel and P-channel MOSFETs and IGBTs, making it versatile for various power conversion topologies such as half-bridge, full-bridge, and buck-boost converters. This isolated driver delivers a peak output current of up to 2 A, enabling fast switching speeds and reduced switching losses in high-frequency applications. Its integrated bootstrap circuit eliminates the need for an external auxiliary supply, simplifying design and reducing component count. The ISO6763-Q1 operates over a wide input voltage range (from 3.3 V to 5 V), allowing compatibility with low-voltage logic controllers like microcontrollers or digital signal processors. Key features include a built-in under-voltage lockout (UVLO) to prevent improper operation during startup or brownout conditions, and a fault detection mechanism that monitors the internal power supply and isolator health. The device also offers adjustable dead time through an external resistor, optimizing performance for different load conditions and minimizing shoot-through currents. With a propagation delay of typically 90 ns, the ISO6763-Q1 ensures accurate timing synchronization critical for high-efficiency power systems. Designed for operation across a temperature range of –40°C to +125°C, the ISO6763-Q1 meets AEC-Q100 Grade 1 qualification, making it suitable for demanding automotive environments including electric vehicle inverters, onboard chargers, and DC-DC converters. Its compact SO-8 package reduces board space requirements while maintaining excellent thermal performance. Additionally, the device includes comprehensive protection mechanisms such as short-circuit protection and thermal shutdown to enhance system reliability and longevity. In summary, the ISO6763-Q1 combines high-speed performance, robust isolation, and intelligent protection features in a single-chip solution, ideal for applications where safety, efficiency, and durability are paramount.