Preface
Mobile has launched a 140W PD3.1 gallium nitride fast charging, this charger has a 3C1A interface, of which the USB-C1 interface supports 140W output, the USB-C2 interface supports 100W output, USB-C3 and USB-A interfaces also support fast charging, and supports automatic power distribution, a single charger can meet the needs of laptops, Apple mobile phones and other devices at the same time.
The charger comes in two striking Phantom Green and Lava Yellow colorways, and is equipped with foldable GB prongs for a beautiful and practical appearance. At the same time, the charger also comes with a 1.2m long 240W braided charging cable for easy user use. The following charging head network will bring the disassembly of the GaN charger of Mobile Speed, and take a look at the internal scheme and materials.
Move speed 140W GaN charger out of the box
The packaging box is based on silver, and the front is printed with the MOVE SPEED brand, product appearance sketch, energy nitrogen, CHARGER, 140W, etc., and the design elements are rich.
The back is printed with the bilingual version of the product parameter information, and the following is a detailed introduction to the physical link of the product.
The package contains a charger, a data cable, and an instruction manual.
The included data cable is a USB-C to USB-C braided cable, which matches the color tone of the charger, and the consistency of the kit is better.
The wire shell is a nested design with a green inner layer and a transparent outer layer, supplemented by a wavy texture, which is full of refinement.
The thread body coat is twisted first and then knitted, which is not easy to fluff and feels better, and is also more durable.
The measured length of the data cable is about 121cm.
Using the ChargerLAB POWER-Z KM003C, the cable with E-Marker chip has a data transmission capability of USB 2.0, a power transmission capability of 50V5A, and supports USB PD3.1 240W fast charging.
In terms of color matching of the 140W gallium nitride charger, two colors of yellow and green are selected that can highlight the vitality of youth, and the shell is treated with high gloss and gloss, and a lot of elements related to electricity and fast charging are added at the same time, which is very individual.
The front of the fuselage is printed with the MOVE SPEED branding, battery charging logo, "140W" and the traditional Chinese character "電", in addition to a black slanted stripe design.
另一面设计有“放肆充”、CHAGRE、GAN 140W、中国制造以及DESIGNED BY MOVE SPEED。
On both sides, the word ELECTRIC is enclosed by diagonal stripes and a square pattern of four arrows.
The charger input housing is printed with detailed parameter information.
Close-up of product parameters
Model: YSFCG107-140Y
输入：100-240V~50/60Hz 2A Max
Output:
Type-C1：5V3A、9V3A、12V3A、15V3A、20V5A、28V5A（140W Max）
Type-C2：5V3A、9V3A、12V3A、15V3A、20V5A（100W Max）
Type-C3：5V3A、9V2.22A、12V1.67A（20W Max）
USB-A：4.5V5A、5V3A、5V4.5A、9V2A、12V1.5A (22.5W Max)
Type-C1+Type-C2:65W+65W
Type-C1/C2+Type-C3：100W+20W
Type-C1/C2+USB-A：100W+18W
Type-C3+USB-A：15W
Type-C1+Type-C2+Type-C3:65W+45W+20W
Type-C1+Type-C2+USB-A：65W+45W+18W
Type-C1/C2+(Type-C3+USB-A) ：100W+15W
Type-C1+Type-C2+(Type-C3+USB-A) :65W+45W+15W
Total power: 140W Max
Manufacturer: Shenzhen Mobile Speed Technology Co., Ltd
The product has passed CCC certification.
In addition, the charger is equipped with foldable national standard pins, which is convenient for storage and better portability.
The output terminal is equipped with four USB ports of 3C1A, which can support charging of up to four devices at the same time.
The four interface cores are all red, and the upper and lower shells are printed with the corresponding interface logo and maximum output power, which is convenient for users to use.
The measured height of the charger is 73.62mm.
The width is 75.63mm.
The thickness is 31.06mm.
Compared with Apple's 140W GaN charger, the 140W GaN charger is still smaller than Apple's even if it is equipped with up to four interfaces.
Feel the size of the charger in your hand.
In addition, the net weight of the charger was measured to be about 312g.
Using the ChargerLAB POWER-Z KM003C, the USB-C1 port supports PD3.1 and DCP charging protocols.
PDO报文显示USB-C1口还具备5V3A、9V3A、12V3A、15V3A、20V5A、28V5A六组固定电压档位。
The USB-C2 port supports FCP, SCP, AFC, QC3.0/4+, SFCP, PE2.0, PD3.0, PPS, DCP, and Apple 2.4A charging protocols.
PDO报文显示USB-C2口还具备5V3A、9V3A、12V3A、15V3A、20V5A五组固定电压档位，以及3.3-11V5A一组PPS电压档位。
The USB-C3 port supports FCP, SCP, AFC, QC3.0, SFCP, PE2.0, PD3.0, DCP, SAM 2A, and Apple 2.4A charging protocols.
The PDO packet shows that the USB-C3 port has three fixed voltage ranges: 5V3A, 9V2.22A, and 12V1.67A.
Finally, it was measured that USB-A supports FCP, SCP, AFC, QC3.0, SFCP, PE2.0, DCP, SAM 2A, and Apple 2.4A charging protocols.
Move speed 140W GaN charger disassembly
After reading the unboxing and testing of the 140W gallium nitride charger, let's disassemble it and take a look at the internal solutions and materials.
First, the charger housing is disassembled along the seam of the housing, and the internal PCBA module is connected to the prongs through wires to supply power.
The wires are soldered to the PCBA module.
The folding prong module is fastened with screws.
The PCBA module is filled by potting.
Remove the PCBA module from the inside of the housing.
The outer layer of the PCBA module is wrapped with an insulating Mylar sheet, and a copper foil shield is pasted on the outside of the Mylar sheet.
The back of the PCBA module is also covered with a heat sink.
The length of the PCBA module measured by vernier calipers is about 69.7mm.
The width of the PCBA module is about 69.4mm.
The thickness of the PCBA module is about 26.7mm.
The copper foil soldered wires are connected to the PCBA module.
The other end of the wire is soldered to the PCBA module.
Disassemble and remove the copper foil and Mylar sheet from the outer layer of the PCBA module.
Clean up the potting compound filled by the PCBA module, the front of the PCBA module is at a glance, the lower left corner is the input terminal, the soldering fuse, and the common mode inductance. On the right side, the rectifier bridge plate is welded, the thin film filter capacitor, and the filter inductor. The right side is welded with a PFC boost inductor.
Weld the high-voltage filter capacitor and the transformer above the PFC boost inductor, and weld two filter capacitors in the upper right corner. The step-down output plate is welded underneath, and a Mylar sheet is insulated between it and the high-voltage capacitor.
The back of the PCBA module is welded with PFC controller, PFC rectifier tube, and flyback controller. Two synchronous rectifiers and an MCU are soldered on the right side, and a chip Y capacitor and two optocouplers are soldered between the primary stages.
Through the observation of the PCBA module, it is found that the 3C1A gallium nitride fast charging is designed with PFC+ flyback switching power supply architecture, synchronous rectification, and fixed voltage output. The output is through three independent synchronous step-down circuits to realize the four-port fast charging output and automatic power distribution function. Let's start with the input to understand the design and materials of the entire charger.
Input welded fuse, NTC thermistor, blue varistor, common mode inductor, safety X2 capacitor.
The input fuse is from Bet Electronics, the discharge number is 932, and the specification is 5A 250V.
NTC thermistor silkscreen 1.5D-11 for suppressing inrush current at power-up.
The varistor is from Songlong, model 10D621K, and is used for surge overvoltage protection.
Common mode inductors are wound with enameled and insulated wires.
The safety X2 capacitor is from Dongguan Chengxi, and the specification is 0.33μF.
The side of the PCBA module is welded with common mode inductors, safety X2 capacitors, thin film filter capacitors and PFC boost inductors.
Common mode inductors are wound with enameled wire.
Another safety X2 capacitor is also from Dongguan Chengxi, with a specification of 0.22μF.
The rectifier bridge is welded to a separate small plate.
There are no soldering elements on the back of the small plate.
The rectifier bridge is from PY Pingwei, the model is TBMR810, the specification is 8A1000V, two are connected in parallel, the heat is evenly shared, and the temperature rise is reduced.
The thin-film filter capacitor is from Jiewei and has a specification of 0.68μF.
The filter inductor is made of magnetic surrounding, and the jacket is insulated with heat shrinkable tubes.
The other film filter capacitor is 0.47μF.
The PFC controller is from onsemi, model NCP1623, and is based on the innovative Valley Synchronous Frequency Foldback (VSFF) method. The VSFF maximizes efficiency at both nominal and light loads, operates in critical mode at heavy loads, operates in intermittent conduction mode at light loads, and supports valley turn-on for increased efficiency.
NCP1623 supports critical-mode, intermittent-on-mode operation, valley synchronous frequency foldback improves efficiency at nominal and light loads, and provides good power factor at low switching frequencies.
The PFC switch is from Wei'an, the model is WML25N55C4, the withstand voltage is 550V, and the TO220F insulated package is used.
The 82mΩ current sampling resistor is used to sense the switch current.
PFC boost inductors are tightly wound and insulated with adhesive tape.
The PFC rectifier tube is from Jiejiewei, the model is JEER1006V, the specification is 600V 10A, and the package is TO-277B.
The top of the high-voltage filter capacitor is insulated with a silicone cap, and the capacitor is from JSH Wanjingyuan, and the specification is 420V100μF.
The power main control chip is from onsemi, model NCP1342, is a high-frequency flyback quasi-resonant primary PWM controller, built-in active X2 capacitor discharge, support a wide range of Vcc power supply, support external thermistor for overheating protection, with multiple perfect protection functions.
The filter capacitor that powers the main control chip comes from Yuguang.
The specification is 10μF 100V.
The primary-side GaN power IC is based on the Navitas NV6123, which is a thermally enhanced version of the NV6113, optimized for high-frequency and soft-switching topologies, with an integrated driver with a conduction resistance of 300mΩ and a 6*8mm QFN package, using two cables in parallel.
The side of the PCBA module is welded with filter capacitors, transformers.
The transformer is tightly wound and insulated with adhesive tape.
The output line is filtered by magnetic rings.
SMD Y capacitors from Sichuan Teruixiang Technology Co., Ltd. have the characteristics of small size and light weight, which are very suitable for high-density power products such as gallium nitride fast charging, with a TMY1152M part number.
Teruixiang focuses on the research and development, production and sales of passive components, with a registered capital of 100 million yuan. It has two categories of independent capacitor brands: SMD TRX and DIP TY capacitors, TRX will be committed to the research of ceramic materials, in order to expand more categories of applications, to provide customers with more solutions.
The charging head network learned that in addition to being used by dozens of high-power chargers such as Maiduoduo 100W gallium nitride, OPPO 65W super flash charge gallium nitride charger, Lenovo 90W gallium nitride fast charging, Nubia 65W gallium nitride charger, Baseus 120W gallium nitride + silicon carbide PD fast charging charger, etc., it is also used in 20W mini fast charging of brands such as Hailutong, First Guard, Belkin, etc., and its performance has been unanimously recognized by customers.
A blue Y capacitor comes from Dongguan Chengxi.
Everlight EL1018 optocoupler is used for PFC switch control.
The other optocoupler is used for output voltage feedback.
The synchronous rectifier controller from Huayuan Zhixin, model HY913B, is a digital adaptive multi-mode synchronous rectifier controller, which does not require auxiliary winding power supply. HY913 supports DCM, CCM, PFM and QR multiple working modes, the supply voltage range is 3-25V, with adaptive pre-shutdown drive to speed up the shutdown transition, support optional minimum shutdown time, drive pull-down at startup, 10nS shutdown delay, Green Mode shutdown drive at light load and other functions. The driving voltage clamp is 8V, and it is suitable for a variety of synchronous rectifier tubes.
Huayuan Zhixin HY913 information.
The two synchronous rectifier tubes are from Leehom Micro, model LH070N120, NMOS, withstand voltage 120V, conduction resistance 7mΩ, and DFN5*6 package.
The output side is welded with a filter capacitor and three USB-C female boards, and components such as buck inductors and filter capacitors are soldered on the USB-C female board, and the USB-A female connector is soldered on the left side.
The two output filter capacitors are from JSH Wanjingyuan, and the specification is 1000μF35V.
The other filter capacitor is 220μF 35V.
Three buck plates are welded on the front with buck inductors and filter capacitors.
The back of the board is soldered with components such as USB-C receptacles, buck protocol chips, and buck switches.
USB-C1 interface small board soldering protocol chip, buck inductor and filter capacitor.
On the other side, the synchronous buck controller, synchronous buck switch and VBUS switch and USB-C female connector are welded.
The synchronous step-down controller is a 40V synchronous step-down converter with a withstand voltage of NDP1415, supporting 38V input voltage, with constant voltage and constant current control, built-in line loss compensation, adjustable output voltage and switching frequency, support burst mode, built-in loop compensation and soft start.
The two synchronous step-down switches are from CR Micro, model CRSM034N06L2, NMOS, withstand voltage 60V, conduction resistance 2.8mΩ, and DFN5*6 package.
Step-down inductor jacket heat shrink tube insulation.
The output filter capacitor is from JSH Wanjingyuan, and the specification is 220μF 35V.
The protocol chip is from Ombao, model OB2623, supports PD3.1 fast charging, supports 28V output voltage and 140W output power. The chip has a built-in MCU and supports protocol customization. The chip integrates VBUS control and Vconn power supply, the chip integrates CV/CC loop and voltage and current DAC, supports voltage and current regulation with 10mV and 10mA accuracy, and integrates perfect protection functions inside the chip, using QFN16 package.
The VBUS switch is from CR Micro, model CRTM063N04L, is a 40V NMOS with a conduction resistance of 4.5mΩ, and is packaged in DFN5*6.
A 5mΩ resistor is used for output current sensing.
The USB-C receptacle is fixed by via soldering, and the orange rubber core does not expose copper.
The USB-C2 interface board is soldered with buck inductors and filter capacitors.
On the other side, the buck protocol chip is soldered, and the synchronous buck switch and USB-C receptacle are soldered.
The step-down protocol IC adopts the Zhirong SW3516P, which is a highly integrated multi-fast charging protocol dual-port charging chip, which supports the fast charging output of any port of A+C port, and supports independent current limiting of dual ports, and the parameters and specifications are the same as those of the Zhirong SW3516H.
SW3516P integrates a 5A high-efficiency synchronous step-down converter. It supports multiple fast charging protocols such as PPS/PD/QC/AFC/FCP/SCP/PE/SFCP, with a maximum output PD of 100W, CC/CV mode, and dual-port management logic. Only a small number of peripheral components are needed to form a complete high-performance multi-fast charging protocol dual-port charging solution.
Zhirong SW3516P details.
According to the dismantling of the charging head network, Zhirong SW3516P has also been used in products such as Shanji 100W 3C1A GaN charger, Bull 67W 3C1A Mountain Peak Safety Fast Charging Socket, Meizu PANDAER 67W 2C1A GaN Gearbox Tide Charge, and Greenlink MFM Certified 100W 2-in-1 GaN Charging Station, and the performance and quality of the chip have been unanimously recognized by customers.
The synchronous step-down switch is from Lihong Micro, model LH042N04, NMOS, withstand voltage 40V, conduction resistance 4.2mΩ, and DFN3*3 package.
The other synchronous step-down switch is from Leehom Micro, model LH80N04, NMOS, withstand voltage 40V, conduction resistance 5.5mΩ, and DFN3*3 package.
Close-up of two MLCC filter capacitors.
Magnetic ring step-down inductor jacket heat shrink tube insulation.
The output filter capacitor is 220μF 35V.
A 5mΩ resistor is used to sense the interface output current.
The USB-C receptacle is fixed by via soldering, and the orange rubber core does not expose copper.
The USB-C3 interface board is soldered with buck inductors and filter capacitors.
On the other side, the buck protocol chip is soldered, and the synchronous buck switch and USB-C receptacle are soldered.
The buck protocol chip is the same as the USB-C2 interface board, and uses the intelligent SW3516P.
The synchronous step-down switch adopts Leehom micro-LH042N04.
The synchronous step-down switch tube adopts Lever Macro micro-LH80N04.
Close-up of two filtered MLCC capacitors.
Magnetic ring step-down inductor jacket heat shrink tube insulation.
The output filter capacitor is 220μF 35V.
The VBUS switch is from Leehom Micro, model LH3020, which is a 30V NMOS with a conduction resistance of 8mΩ and a DFN3*3 package.
Two 5mΩ resistors are used to sense USB-C and USB-A interface currents.
The USB-C receptacle is fixed by via soldering, and the orange rubber core does not expose copper.
The USB-A connector is soldered to the USB-A female connector on the front of the small board.
A TVS diode is soldered on the back of the small board.
The USB-A receptacle uses an orange rubber core, the positive and negative poles are widened to support high-current fast charging, and there are auxiliary contacts on the front end.
The MCU for automatic power distribution is from Xinhai Technology, model CSU38F20, is an 8-bit wide-voltage Flash MCU with LED driver and 12-bit ADC, built-in 16K byte Flash program memory, integrated 8COM×7SEG LED driver, UART interface, I2C interface, suitable for personal care, e-cigarettes, battery management, fire beacons and other fields.
Chipsea Technology CSU38F20 Facts.
A list of all dismantling and a family photo.
Summary of the dismantling of the charging head network
The GaN charger is in lava yellow and has a neat square appearance with folding pins for easy daily carrying and storage. The charger has a 3C1A interface, the USB-C1 interface supports 140W output, the USB-C2 interface supports 100W output, and the other two interfaces also support fast charging, and supports automatic power distribution, which can meet the simultaneous charging of multiple devices such as laptops and mobile phones.
Through the dismantling of the charging head network, it was learned that this charger adopts PFC+ flyback switching power supply architecture, uses onsemi NCP1623 + NCP1342, and cooperates with Huayuan Zhixin HY913B synchronous rectifier controller to form a switching power supply with fixed voltage output. Among them, the PFC switch is from Wei'an, the PFC rectifier tube is from Jiejiewei, and the flyback switch tube is Navitas NV6123 gallium nitride power chip.
The output adopts three independent step-down circuits, of which the USB-C1 interface supports 140W output, and the use of Ambo OB2623 with Xintan Micro-NDP1415 synchronous step-down controller, and the use of China Resources Micro switch tube. The USB-C2 and USB-C3 interfaces use Zhirong SW3516P step-down protocol chips, and use Leehom micro switches. The internal capacitor of the charger comes from Wanjingyuan, and the PCBA module is potted with thermally conductive adhesive to improve heat dissipation performance, with solid internal workmanship and reliable materials.