High-power universal serial bus power transmission (USB-PD) will accelerate penetration into the automotive market. Mobile devices are increasingly used to connect to car infotainment systems via USB cables, so Maxim has developed a DC-DC converter that supports the USB-PD specification to overcome the small USB charging current of previous cars. And the problem of easy interference, so that the car entertainment system can be higher power, charging tablets and even notebooks.
Ben Landen, senior business manager of Maxim Automotive Solutions, said that it is unstoppable for drivers or passengers to use the USB cable in the car to charge mobile devices. It is expected to drive demand for DC-DC converters for integrated USB-PD charger simulators. temperature.
Ben Landen, senior business manager of Maxim Automotive Solutions, said that mobile devices such as smart phones and tablet devices have become important entertainment devices in the back seat of the car. Not only must the USB transmission interface be interconnected with the car infotainment system to achieve data transmission purposes, The more you rely on USB to charge in the car.
As a result, Maxim has introduced the MAX16984, an automotive DC-DC converter that integrates the USB Battery Charger (BC) specification version 1.2 Charger Emulator, which delivers up to 7.5 watts of power for end-users. Car USB, charging a digital camera in the car.
To further meet the charging power required for products such as tablet devices and notebook computers, Maxim's new automotive-grade DC-DC converters will integrate USB-PD charger simulators with high-power charging capabilities to cater to in-vehicle infotainment systems. Trends in the application of charging various mobile devices via USB cables. At present, the new product has been sent to the original equipment manufacturer (OEM) for testing. If the test passes, it is scheduled to be officially launched in 2015.
It is understood that in the past, the USB cable was prone to voltage drop and the charging current was reduced, resulting in the inability to properly charge the portable device, while the low-cost portable USB car charger was prone to radio frequency (RF) interference. In view of this, Maxim integrates DC-DC converter, USB BC 1.2 version charger (supports USB 2.0 standard) and USB protection switch, and is the first in the industry to release the highly integrated MAX16984, breaking through the above technology, while reducing product size and overall material. List (BOM) cost.
Landen emphasized that automotive USB requires a unique protection solution that will be a new generation of automotive DC-DC converters that support the USB-PD specification and USB 3.0 or 3.1 specifications.
The application for wireless charging in the automotive field is bullish, and Landen believes that the current technical solutions proposed by the three camps of the Wireless Charging Alliance (WPC), the Wireless Power Alliance (A4WP), and the Power Business Alliance (PMA), whether in consumer electronics, Mobile devices and the automotive market have low penetration rates, which are difficult to match the USB transmission interface. Therefore, it is estimated that USB will not pose any threat to the car charging market in the next few years.
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