▲ Identification mark of fast charge 5
The QuickCharge5 specification also follows the ANdroid industry standard and adopts technologies compatible with USB-PD and USBType-C specifications, thus meeting the requirements of GoogleAndroid for charging standards; At present, QuickCharge5 technology has begun to provide customer samples, including the current Snapdragon 865, Snapdragon 865Plus and future platforms (Snapdragon 875? You can choose this new charging standard. As the representative of Xiaomi endorsed in the press release, it can be seen that Xiaomi will adopt Qualcomm QuickCharge5 as the basis of high-power fast charging of its new machine.
Features of QuickCharge 5
Compared with the current QuickCharge4/QC4 technology, Qualcomm QuickCharge5 improves the efficiency by 70% and the charging speed by four times, but it can reduce the heat of 10 degree when charging. Its characteristic is that it can support 2s battery and 20V charging. In addition to power improvement, Qualcomm has also strengthened safety protection, providing 12 independent voltage, current and temperature protection measures, including 25VUSB ultrasonic voltage and 30V external power supply control.
QuickCharge5 has dual and triple charging technologies, adaptive input voltage, INOV4 and other technologies, and provides Qualm power saving technology and Qualm intelligent identification transformer function technology. As for the charger of QuickCharge5, it provides a voltage combination of 3.3V to 20V, current of 3A and 5A, power of at least 45W, and is compatible with USBPD specification.
In order to meet the QuickCharge5 standard, Qualcomm also introduced two corresponding power management IC's (PMIC's), including QualmSMB 1396 and QualmSMB 1398. These two PMIC can support single and double batteries, wired and wireless power input, adaptive adjustment based on power supply (including three-stage buck and DIV/2) and the function of expanding more power supply and secondary power input.