Semtech Corporation, a leader in high-performance semiconductors, recently introduced the TDS5311P, an innovative circuit protection device. Este is the first in the industry to offer near-constant clamping voltage for 48V applications in the USB standard Power Delivery (PD) Extended Power Range (EPR).
This release addresses a critical protection gap in USB PD EPR systems, specifically operating at 48 V. The component is ideal for industrial equipment, rugged mobile devices and high-performance portable systems that demand reliability.
The TDS5311P, which is part of the SurgeSwitch® family, was designed to safeguard power rails (VBus) that operate with up to 53 V, ensuring component integrity in demanding environments.
Challenges in 48V VBus Protection
The increasing adoption of USB PD EPR in sectors such as industrial and rugged devices has brought with it significant challenges for engineers. Conventional TVS diodes, often used for protection, demonstrate inconsistent behavior.
The limiting voltage of these diodes varies considerably depending on current levels and temperature fluctuations. Essa inconsistency compromises effective circuit protection, especially in mission-critical applications.
Featured SurgeSwitch® technology
The Semtech TDS5311P overcomes the limitations of traditional TVS diodes through its surge-rated FET-based architecture. Esta innovation allows the device to maintain a practically constant limiting voltage.
This stability is observed from the initial microsecond of a surge event up to the maximum rated current. Além Furthermore, performance is consistent across the broad industrial temperature range, from -40°C to +125°C.
Industrial reliability and compact design
The TDS5311P SurgeSwitch technology meets the industrial-grade reliability requirements crucial for USB Power Delivery Extended Power Range expansion. Essa solution offers the stability that modern systems demand, as stated by Tamir Reshef, vice president of product and applications marketing for Semtech’s wireless and mixed-signal analog products group.
The device supports a pulse peak power of 1512 W and a pulse peak current of 24 A. Ele also complies with the strict industrial surge standard IEC 61000-4-5. Tudo this is encapsulated in a DFN-6 (Dual Flat No-lead) format of just 2.0 x 2.0 mm, ideal for space-constrained devices.
Product availability
The TDS5311P is now commercially available, offering designers a robust and compact solution for circuit protection needs in USB PD EPR systems. Semtech continues to innovate in the field of high-performance semiconductors, driving solutions for data center networking, IoT connectivity and cellular infrastructure. The company is committed to providing technologies that enable a smarter, more connected and sustainable planet for the future.