Power Electronics Europe Feb/March 2023

8 INDUSTRY NEWS Issue 1 2023 Power Electronics Europe www.power-mag.com Designed to shorten development times while exceeding power density norms and reducing power loss the SiC (silicon carbide) EliteSiC products have reduced switching losses under real-world conditions compared to products from competitors, says Farnell. As the industry moves to accelerate the transi- tion to decarbonisation, there is a shift in demand towards installing energy infrastructure systems fea- turing DC fast chargers (DCFC), solar inverters and battery energy storage systems (BESS). Adopting SiC-based power stages is critical in reducing power losses, increasing power density and reducing cooling costs, advises the distribu- tor. Typical applications for onsemi EliteSiC devices include UPS, DC/DC converters, boost inverters, solar inverters, electric vehicle charging stations and industrial power systems. These devices are Pb?free, halide free and RoHS-compliant. Farnell now stocks the EliteSiC Power, single N- channel with typical low gate charge of 56nC and low effective output capacitance (typically 79pF) and a junction temperature of 175°C. There is also the EliteSiC MOSFET NXH006P120MNF2 which consists of a 6m /1200V SiC MOSFET half bridge and a thermis- tor in an F2 package. It is available with or with- out pre?applied thermal interface material (TIM) and solderable or press?fit pins. Adrian Cotterill, global product segment lead- er, transistors and WBG at Farnell, said: “This is a key addition to Farnell’s portfolio that will ensure energy infrastructure systems are developed using the highest calibre, best-of-breed components . . . highly optimised SiC products [which] meet the latest performance requirements of energy infras- tructure end applications.” URL: https://uk.farnell.com/ Farnell offers infrastructure products from onsemi PTX30W integrates power management and li-ion battery chargers Fabless semiconductor company, Panthronics is sampling the PTX30W, claimed to be the only single-chip solution for the listener circuit in NFC wireless charging systems. It combines a rectifier, NFC tag, battery charger and power management as well as protocol handling. The NFC tag supports bi-directional data communication in NFC Type A mode. This enables the transfer of data between the charging cradle and the charged device, such as the battery’s state of charge or fault indicators, as well as enabling firmware upgrades of both devices. The device’s power management unit supplies the chip from RF power when available, or from the battery. A battery charger circuit regulates the input voltage from the antenna to match the voltage profile of the constant current/constant voltage charge supplied to the li-ion battery. This minimises power losses in the charger to improve thermal management in sealed, space- constrained enclosures. The device is supplied in a compact 3.2mm2 WL-CSP which enables manufacturers of small battery-powered products to implement NFC wireless charging with a board which is around four times smaller than existing designs which are based on multiple discrete components. It is also easier to implement than a circuit made of multiple discrete components, says the company. The autonomous PTX30W runs an NFC Forum-derived wireless charging protocol which supports power negotiation. As a result, the device can operate in standalone mode without an external microcontroller to run NFC wireless charging operations. Paired with an NFC poller, such as the PTX130W in the charging cradle, the PTX30W can supply up to 1W to charge the li-ion battery in fitness trackers, smart watches, earbuds, hearing aids, smart glasses, smart rings, styluses and medical sensors. The company also provides a software development kit to accelerate integration into end product designs. The PTX30W is available now for sampling, with volume production orders due to start shipping in Q2 2023. https://www.panthronics.com/