The Tesla new Model 3 Center Docking Station for neatness and simplicity,good for storage and portability.3W docking station buck IC adopts CX8831CA,where is mounted in the armrest compartment of Tesla, and is powered by the cigarette lighter socket. The docking station has two cables include USB-C and Lightning, the USB-C cable supports 45W output power, and the Lightning cable supports 27W output power. The docking station also has two USB-C ports that support 30W charging power, and when all ports are used at the same time, the total output power is 132W.

3W Tesla New Model 3 central control dock station appearance：

The docking station Parameters：

Input parameter：10-16V⎓10A

Output parameter ：Stretch cable Type-C：5V/3A；9V/3A；12V/3A；15V/3A 45W（MAX）

                                 Stretch cable Lightning：5V/3A；9V/3A 27W（MAX）

                                 Type-C ports：5V/3A；9V/3A；12V/2.5A 30W（MAX）

KM003C detection The USB-C Stretch cable supported MTK PE+, MTK PE+2.0, PD3.0, PPS, QC4 and DCP charging protocols.

PDO message shows the stretch cable port also has four fixed voltage gears of 5V3A, 9V3A, 12V3A and 15V3A, and one PPS fast charging gears of 3.3-16V3A.

USB-C ports supports QC3.0/4+, FCP, SCP, AFC, VOOC, SVOOC, MTK PE+, PD3.0, PPS, DCP and Apple 2.4A charging protocols.

PDO message shows that USB-C ports has three fixed voltage gears of 5V3A, 9V3A and 12V2.5A, and three PPS voltage gears of 3.3-5.9V3A and 3.3-11V2.75A. The fast charging protocols and specifications supported by the two USB-C ports are identical.

3W Tesla new model 3 central control docking station disassembly:

PCBA module has four buck circuits, which correspond to Lightning self-cable, two USB-C ports and USB-C self-cable, three electrolytic capacitors are used for input filtering and four solid-state capacitors are used for output filtering.

The synchronous buck chip CX8831CA for Lightning self-cable, which is a synchronous buck converter with multiple fast charging protocols. It supports PD fast charging, Huawei FCP/SCP/HVSCP fast charging, Xiaomi 27W fast charging, VOOC fast charging, Samsung AFC fast charging, etc. It is used in vehicle charging ports, various fast charging adapters, intelligent plug-in and other applications.

CX8831CX has built-in switching transistor, built-in current sampling circuit and compensation circuit. The chip supports 36V input voltage, 45W output power and adaptive input voltage, which can automatically adjust the output power according to the input voltage. Chip supports line loss compensation, CX8831CQ supports dual-chip LINK interconnection to reduce power, CX8831CA adopts ESOP-8L package, and CX8831CQ adopts QFN-16L package.

3W Tesla new model 3 docking station built-in four independent synchronous buck circuits, among which SW synchronous buck chip is used for the buck circuit of 45W type-C self-cable, and the three buck chips used for USB-C interface and Lightning self-cable adopt CXW CX8831CA.

The CX8831CA is a DC-to-DC protocol integrated IC that integrates switch transistors and protocol functions internally, with a very streamlined peripheral component count. It is a highly integrated DC buck solution with DC+ protocol with great market competitive advantage. 3W Tesla new model 3 docking station can be so simple and efficient, because of the high level integration IC, which integrates the DC+ protocol in a single chip, greatly simplifying the circuit design of multi-port fast charging and effectively shortening the product development cycle.

CX8831CA is a DCDC protocol integrated chip, which integrates switch tube and protocol functions internally, and its peripheral components are quite simplified. It is a highly integrated DC buck scheme with DC+ protocol with great market competitive advantage. 3W Tesla Huan's new docking station can be so simple and efficient. Thanks to the high integration of chips, the discrete scheme of DC+ protocol chip in the traditional fast charging and buck scheme is integrated into a single chip, which greatly simplifies the circuit design of multi-port fast charging and effectively shortens the product development cycle.