1. What is QC3+ fast charging?
Qualcomm's official promotional materials show that QC3+ fast charging technology has the following characteristics:
1, faster charging with higher efficiency: it only takes 15 minutes to charge from zero to 50%, and the charging speed is faster than the previous generation The platform is increased by 35%, and the body temperature is reduced by 9 degrees Celsius;
2, QC3+ will support industry-standard USB Type-A to USB Type-C cables and accessories, and inherit the Quick Charge 4 voltage regulation method in 20mV steps , More economical and affordable for OEM manufacturers and consumers;
3, QC3+ can provide extremely flexible charging experience, including backward compatibility with previous generation Quick Charge terminals, and support for use with QC3+ accessories;
4, integrated power detection of charging accessories /Identification, and various security features.
Judging from the parameters of the first QC3+ fast charge charger launched by Xiaomi, it has four output voltage levels: 5V/3A, 9V/2.23A, 12V/1.67A, and 10V/2.25, compared to the conventional QC3.0 charging The device has an additional 10V voltage range, and the power has been increased from the conventional 18W to 22.5W.
2. What power chips support QC3+ fast charging?
According to the statistics of the charging head network, there are currently 5 fast charging source chips that have passed Qualcomm QC3+ certification, namely Tianyu JD6632, Inchip IP2165, Inchip IP6809B, Inchip UC2611, Wei Quan WT7696, and below This is a detailed introduction of these chips.
1, Fitipower Tianyu JD6632
Tianyu Technology is a professional power management and liquid crystal display driver IC design company. In 2015, FP6600/FP6601 began to sell, and its compatibility is very high. In 2016, Tianyu Technology further launched FP6601Q, in addition to supporting BC1.2 Apple All-in-One, Qualcomm’s fast charge protocol also supports QC3.0, and has passed Qualcomm’s QC3.0 certification, as well as leading industry players to join the support of Huawei’s FCP protocol, with stronger performance. Brand manufacturers have provided the basis for developing faster charging products with better compatibility. In 2019, USD PD fast charging FP6606C and FP6606AC have been widely adopted by customers, and they have shined in the charging industry in recent years.
launched the latest product JD6632 for Qualcomm QC3+ after the QC3.0 best-selling product FP6601Q. A fast charging control chip that supports Qualcomm Quick Charge 3+ technology. JD6632 is fully compatible with the previous generation FP6601Q, so customers do not need to change the design when upgrading QC3+.
Tianyu JD6632 detailed specifications.
2, Hypwr Hanxin HP9116
Hanxin HP9116 is a USB interface protocol chip that supports the new QC3.0+ fast charge protocol, backward compatible with QC3.0 and QC2.0 protocols, and automatically detects BC1.2, QC3. 0, QC2.0 and QC3.0+ protocol, after the recognition is correct, it will switch to the corresponding protocol mode, and dynamically adjust the output voltage to the specified value according to the instruction requirements.
Hanxin Micro HP9116 can provide a continuous output voltage of 3.6V-20V or a discrete output voltage of 5V, 9V, 12V. In QC3.0 mode, the step value of continuous output voltage is 200mV, In QC3.0+ mode, the step value of the continuous output voltage is 20mV. Through the SEL voltage selection pin, the maximum output voltage in continuous mode can be configured as 12V or 20V. In QC3.0+ mode, there are three different power modes to choose from, corresponding to the three different models of HP9116.
The power supply terminal of Hanxin Micro HP9116 adopts shunt architecture, which greatly improves the surge resistance of the VBUS terminal, and at the same time improves the voltage withstand capability of the DP and DM signal interfaces. It also has built-in overvoltage protection circuits and weak short circuit protection circuits to enhance power supply The safety of the output. A high-precision current reference source is integrated inside the chip to ensure that the accuracy of the output voltage meets the QC3.0+ specification.
Hanxin Micro HP9116 detailed specifications.
3, INJOINIC’s IP2165
, INJOINIC’s IP2165 is the first local fast-charging chip certified by Qualcomm QC3+. It can be seen from the QC3+ certificate that the certificate number of Insets IP2165 is QC20200417151, and the date of certification: April 17, 2020. This is another breakthrough after Injixin IP2726 got the first Qualcomm QC4+ certification in China. It can be seen that the research and development strength of local power semiconductor companies has been recognized by Qualcomm.
Yingjixin IP2165 is an integrated 6 kinds of fast charging protocol IC for USB output port, supports apple 2.4A, normal Samsung mode, QC3+, QC3.0, QC2.0, BC1.2, and supports automatic detection Device type and charging protocol switch, automatically respond to fast charging protocol request IP2165 integrated FB control interface, the output voltage can be accurately controlled by adjusting the current of FBSOURCE/SINK (minimum 0.2uA/step).
Yingjixin IP2165 detailed specifications.
4, INJOINIC IP6809B
INJOINIC IP6809 is a wireless charging transmitter control SoC chip, compatible with the latest WPC Qi v1.2.4 standard, support 3-coil wireless charging applications, support A28 coil, MP-A8 coil, support customer coil Customized solutions, support 5W, Apple 7.5W, Samsung 10W, 15W charging.
Yingjixin IP6809 detects the wireless receiver through analog ping, and establishes communication with the receiving end, and then starts power transmission. IP6809 determines the location of the receiver by switching different working coils to perform analog ping and detecting the signal strength, and selects the coil with the strongest signal to perform charging. IP6809 decodes the communication data packet sent from the receiver, and then uses PID algorithm to change the oscillation frequency to adjust the output power on the coil. Once the battery on the receiver is fully charged, the IP6809 terminates power transmission.
In addition, the Injixin IP6809 integrates a full-bridge drive circuit and a voltage & current two-way ASK communication demodulation module, which has high integration and reduces the solution size and BOM cost.
Yingjixin IP6809 detailed specifications.
5, Weltrend Weltrend WT7696
It is understood that Weltrend WT7696 has passed the GRL test and obtained Qualcomm Quick Charge 3+ certification in March 2020. Certificate number: QC20200226137.
Weiquan WT7696 integrates high-voltage dedicated charging port (HVDCP), dedicated charging port (DCP), high-voltage DP/DM pins with low impedance detection, FB pins, under-voltage lockout (UVLO), VBUS voltage monitoring and VBUS highest output voltage selection pin. It supports HVDCP, QC2.0, QC3.0, QC3+ technology Class A or Class B. It can be configured by the state of the VBUS maximum output voltage selection pin. It is suitable for wall chargers, car chargers, and mobile power supplies.
Wei Quan WT7696 specifications. Z1z
charging head net summary
There are three camps in the fast charging mobile phone market, namely the USB PD fast charging camp, the private protocol camp and the QC3.0 fast charging camp. Compared with the first two, although QC3.0's classic 18W charging power is slightly inferior, it has an extreme cost advantage. It is still used by major mobile phone manufacturers in low-end models, and the market demand is huge.
Qualcomm’s QC3+ fast charging technology achieves an increase in power under the premise of ensuring cost advantages. Compared with QC3.0, the maximum charging power of 22.5W has increased the charging speed by 30%, and the charging temperature of mobile phones has also been greatly reduced. The user experience has improved a lot.
At present, QC3+ fast charging technology has been mass-produced in some Xiaomi mobile phones. It is believed that more models will be upgraded with this fast charging technology in the future, and Qualcomm QC3+ certified protocol chips will also become the preferred fast charging solution for the standard chargers of these mobile phones, and chip shipments are expected to increase.
