Two single-channel TVS devices boast best-in-class low capacitance
Alpha and Omega Semiconductor has introduced the AOZ8S303BLS-24 and AOZ8S305BLS-24, a series of single-channel Transient Voltage Suppressor (TVS) for high-speed line protection. The devices have high trigger voltage, low clamping voltage and capacitance for Type-C applications.
Both TVSs are suitable for electrostatic discharge (ESD) protection of Type-C connectors in mobiles, laptops, televisions, and other electronic devices.
USB Type-C with PD (Power Delivery) has become a standard power and data interface for notebook PCs and smartphones. The voltage range varies from 5.0 to 20V. For fast charging such as USB PD and quick charger designs, traditional TVS diodes for USB protection with breakdown voltage lower than 20V risk getting shorted or damaged, causing the corresponding Type-C port to inactivate permanently. The AOZ8S303BLS-24 and AOZ8S305BLS-24 have been introduced to address this. Their high reverse working voltage covers the whole voltage range from a USB-PD port. In addition, the ultra-low clamping voltage and capacitance are optimised for ESD protection in high-speed lines, including, but not limited to USB, Thunderbolt, HDMI, and PCI Express, by minimising the capacitance effect.
The AOZ8S303BLS-24 and AOZ8S305BLS-24 are housed in a standard WLCSP0.6×0.3-2 (0201) package. The small form factor is suitable for high speed differential signals in Type-C, advises Alpha and Omega Semiconductor. Both AOZ8S303BLS-24 and AOZ8S305BLS-24 will not only contribute to reducing the ESD failure rate but also reducing the failure of short-to-VBUS in partners’ and customers’ electronic products, said Michael K. S. Ng, senior marketing manager of the TVS product line at AOS.
The AOZ8S303BLS-24 and AOZ8S305BLS-24 are immediately available in production quantities with a lead-time of 20 weeks.
Alpha and Omega Semiconductor (AOS) design, develop and supply a broad range of power semiconductors, including a wide portfolio of power MOSFET, IGBT, IPM, TVS, HVIC, SiC/GaN, power IC, and digital power products. AOS has developed extensive intellectual property and technical knowledge which enables it to introduce innovative products to address the increasingly complex power requirements of advanced electronics. AOS differentiates itself by integrating its discrete and IC semiconductor process technology, product design, and advanced packaging expertise to develop high performance power management solutions. AOS’s portfolio of products targets high volume applications, including portable computers, flat panel TVs, LED lighting, smartphones, battery packs, consumer and industrial motor controls, automotive electronics, and power supplies for TVs, computers, servers, and telecommunications equipment.
