Dallas, Tex. -- Texas Instruments (TI) has expanded its Thunderbolt portfolio with the TPS65980 DC/DC switching regulator. Touted as the first fully integrated power solution for bus-powered Thunderbolt applications, the TPS65980 is the centerpiece of TI's certified Thunderbolt single port peripheral reference design, simplifying the power chain and speeding the design of bus-powered applications, such as hard drives, solid state drives and audio and video solutions.
Thunderbolt technology has emerged as the fastest way to transfer data between a PC and peripheral and display devices. At 10 Gbps full-duplex bandwidth per channel, Thunderbolt technology merges high-speed data (PCI Express) and display (DisplayPort) onto a single protocol, said TI. Thunderbolt 2 combines both channels into a single 20-Gbps full-duplex channel, which enables transmission of uncompressed high-bandwidth data, such as 4K video, the company added.
TI also offers a full line of power management, switches, multiplexers and interface solutions for Thunderbolt applications. For hosts and peripherals, the TPS22981 power mux, TPS22920L load switch and the LM3481 boost converter facilitate the delivery and receipt of power to both the active cable and the connected device. The HD3SS0001 video switch connects directly to the Thunderbolt controller switching the Thunderbolt UART transmit/receive pair and DisplayPort Main Link. In cable solutions, the TPS22986 power mulitplexer automatically selects the proper 3.3-V supply to provide power to the active cable circuitry.
The TPS65980 integrates all the power management functions to meet power requirements for a Thunderbolt bus-powered device, reducing the total bill of materials (BOM) cost by 50 percent and solution size by 40 percent compared to discrete solutions, according to TI. The device also reduces design time as a recommended and approved device for Thunderbolt bus-powered solutions. It supplies up to 3.5 A of output current, allowing bus-powered endpoint devices up to 10 W at over 90 percent efficiency. It also provides automatic thermal shut-off and power sequencing provide for additional design flexibility.
Availability: For more information or to order samples and an evaluation module, visit www.ti.com/tps65980-pr-en.
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