Quick Charge 3.0 Based Charger Design For Portable Applications

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Implementing Qualcomm Quick Charge 3.0 protocol, On Semiconductor has presented a design that allows rapid development of small form factor chargers for portable applications with industry leading efficiency.

The Qualcomm Quick Charge 3.0 protocol is the next generation of fast charging technology for smartphones and tablets, as well as offering backward compatibility to the older Quick Charge 2.0 protocol.

The reference design highlights the new NCP4371 secondary side charge controller which allows the charger USB-bus voltage to be changed based on requests from the phone or portable device. It also removes the need for a secondary shunt regulator saving cost and the space required to implement a charger design, as stated. Adding further the release mentions that the USB-bus voltage can be controlled in discrete steps from 3.6V up to 20V.

“Fast charging capability is quickly gaining acceptance at all portable device manufacturers,” said Shane Chilton, director of the AC-DC business unit at ON Semiconductor. “We are excited to be working with Qualcomm on this next generation power solution which ties in with our strategy of delivering innovative high efficiency solutions to our customers.”

According to the press release, the NCP4371 is available in a SOIC-8 package and priced at US$ 0.18 per unit in 10,000 unit quantities.

Click here, to read the press release.

 

 

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