October 19, 2021 at 1:00 am Apple held a special event, releasing AirPods 3, 2021 MacBook Pro, and also brought HomePod mini new color scheme. Although Apple used a promotional picture to imply that the new products released this time would be very explosive and many people were mentally prepared, but when it came to the Macbook Pro stage, everyone was still shocked.
The new MacBook is equipped with the strongest laptop processor M1 PRO/M1 MAX. The huge performance improvement made many friends exclaim that this was the whole tube of toothpaste. In addition, the 16-inch MacBook Pro supports high-power fast charging up to 140W, making it the world's first laptop that supports USB PD3.1 fast charging technology. In addition to the standard 140W fast charging charger designed based on GaN Black Technology,
also has a special USB-C to MagSafe3 cable. Only through these two accessories can 140W fast charging be achieved, both of which are indispensable.
The emergence of Apple's 140W gallium nitride fast charge has opened the door to the era of USB PD3.1 fast charge, so it has attracted the attention of many people. Although the charger is standard for the new MacBook Pro16, it is also available for retail on Apple's official website, and it costs 729 yuan.
Apple has previously launched a variety of chargers such as 5W, 10W, 12W, 18W, 20W, 29W, 30W, 61W, 87W, 96W, etc. Most of the charging head networks have been disassembled. Regarding the charging compatibility test of the new MacBook Pro 16, the charging head network has found the Apple 18-140W PD fast charging family. For specific power and compatibility performance, please refer to the relevant review articles.
Apple has established its own PD fast charging ecosystem. Its PD fast charging has covered the power range of 18W to 140W. The first 140W gallium nitride charger that supports USB PD3.1 is also the most powerful PD fast charger launched by Apple.
Many friends are curious about how the first PD3.1 fast charging gallium nitride charger is designed and what architecture it uses. The charging head network will disassemble this charger in detail below to answer it one by one.
. Appearance of Apple 140W gallium nitride charger
Apple's 140W gallium nitride charger continues the simple white shell design, with high-gloss and glossy surfaces in the shell, and rounded corners.
design maintains the same style as the previous three chargers, 61W, 87W and 96W, and the shape changes from traditional square to rectangular, which is very easy to distinguish.
body center design has an Apple logo.
The charger name is printed on the shell on one side of the input end, model A2452, and the manufacturer is Flextronic Power (Dongguan) Co., Ltd.
on the other side of the shell is printed with charger input and output parameters
Input: 100-240V~50/60HZ 2A
Output: 5V3A, 9V3A, 15V5A, 20.5V5A, 28V5A
Charger has passed CCCh and KC certification.
charger is equipped with foldable national standard pins, and double wing designs are added on both sides, making daily use more stable. The
pin is also a unique independent module design that can be detached and replaced.
pin module shell has the words "2.5A 250V~CH677-1725" and "Longwell China" printed on the shell. Longwell Liangwei is one of the three major suppliers of Apple charger plugs. The Charging Head Network introduced it in previous articles on identifying the authenticity of Apple adapter plugs.
The Chinese English abbreviation "CHN" is printed in the groove. Close-up of
font-shaped plastic pins, irregular groove design in the middle can play a fixed and anti-loosening role.
T-type fixed seat close-up, and can be used as ground wire .
SN code is printed in the slot: C4H141207C216YCAT.
Connect the charger to the MacBook Pro, and you can obtain relevant information about the charger. Its power is 140W and the serial number is C4H141207C216YCAT, which is consistent with the information printed on the pin case.
Use ChargerLAB POWER-Z MF001 to read and obtain the charger SN code is also C4H141207C216YCAT.
output end is equipped with a single USB-C interface and a white glue core.
C port mother seat shell is also independently designed.
It was measured that the length of the charger body was about 96.13mm.
width is 75.17mm.
thickness is 28.68mm. Compared with the Apple 96W charger, it is taller and narrower.
Intuitive feeling when holding it in your hand.
weight is about 277g.
uses ChargerLAB POWER-Z KT002 to detect the USB-C port output protocol, and it shows that it supports Apple 2.4A, Samsung 5V2A, DCP, and PD3.0 protocols. In fact, the charger supports the latest PD3.1 fast charging standard.
In addition, it is measured that the USB-C port also has four fixed voltage gears: 5V3A, 9V3A, 15V3A, and 20V4.7A. In fact, the charger also has a 28V5A voltage gear, with a maximum output power of 140W.
Use ChargerLAB POWER-Z KM001C to test Apple's 140W gallium nitride charger charges the MacBook Pro 16 through MagSafe 3, with a power of 27.73V 4.92A 136.68W.
2. Apple 140W gallium nitride charger disassembled
Remove the shell through cutting.
shell is very thick and has strong protection, and the edge glues reinforce the internal module.
Input terminal, a wire is connected to the T-shaped fixture for grounding.
AC wire terminal solder joint sleeve is insulated with heat shrink tube .
charger module covers large metal heat sinks to achieve a uniform heat dissipation effect.
heat sink is fixed with screws.
side area paste insulating tape .
measured module length to be 87.6mm.
has a width of 67.07mm.
thickness is 23.2mm.
Remove the heat sink and expose the module.
Insulating isolation panel is provided on the inside of the heat sink. The front of the
module is available, and the capacitor , inductance and other devices are glued, and the transformer is covered with plastic shell.
Remove the plastic shell.
The back of the motherboard is covered with soft rubber pads to protect the insulation, and the corresponding chips, capacitors, etc. are hollowed out.
chip is coated with thermal glue and is pasted with graphite thermal sticker. The front of the motherboard is available at a glance. The central area is equipped with high-voltage filter electrolytic capacitors, current transformer , film capacitors, power supply capacitors and other devices. The high-voltage filter electrolytic capacitors are placed horizontally and are covered with insulating rubber sleeves.
Remove the front components and you can see that there are four diodes , two drivers, optocoupler , protocol chip and output VBUS switch tube on the board.
The back of the motherboard is listed, mainly equipped with a PFC boost circuit, a controller of LLC switching power supply, and a MOS tube.
input end list, safety X capacitor sleeve is equipped with a plastic shell, a fuse is installed on the top and insulating tube is installed, and the two devices are wrapped in tape to fix them together. There are two Infineon MOS tubes on the right.
fuse rated current .15A.
safety gauges X capacitor close-up.
common mode inductor two-stage design is used to filter out EMI interference.
Another common mode inductor blue-black double-wire winding.
One TVR10621M varistor is used for input overvoltage protection.
input end uses rectifier bridge composed of four diodes.
Close-up of the other two diodes, paired with Infineon CoolMOS IPA65R095C7 for active rectification.
Two Infineon MOS tubes with silk screen 65C095C7, IPA65R095C7 are used to improve rectification efficiency.
Another Infineon IPA65R095C7 close-up. There is a thin film filter capacitor and magnetic loop filter inductor on the side of
, and the input terminal is rectified and filtered.
Two film capacitor close-up.
Magnetic ring Filter inductance close-up, glued reinforcement.
PFC boost inductor and buck inductor, on the right is the output Type-C mother seat, which is fixed by cable connection.
NXP NXP TEA19162T PFC boost controller.
Two ST MOS tubes are used for PFC boosting, silk screen 36N60PF8N.
Another close-up.
PFC rectifier tube is an ON Semi FES10J, with an ultra-fast recovery diode with a withstand voltage of 600V and a current of 10A.
PFC boost inductor close-up.
High voltage filtering electrolytic capacitor comes from ruby, with specifications of 450V 82μF.
driver Toshiba and Infineon switch tube driver, customized model, from ON Semi, silk-print SC530C.
Toshiba TK210V65Z, NMOS, withstand voltage 650V, resistance 175mΩ, DFN*8 package.
Infineon IPL65R1K5C6S NMOS, withstand voltage 700V, resistance 1.5Ω.
current transformer used to detect the input current of the buck stage.
Silk-print AZV chip.
buck inductor close-up.
third blue film filter capacitor close-up.
main control chip power supply capacitor is also from ruby, with a specification of 35V 47μF.
The other side is equipped with an LLC switching power supply and output related devices. You can see transformers, output filtered solid-state capacitors, output VBUS switch tubes, etc.
ST STM32G071KB M0 core MCU, built-in 128K Flash, 36K RAM, main frequency 64MHz, UFQFPN32 package, used for power supply primary driver control.
driver for driving two gallium nitride switch tubes, customized model, from ON Semi, silk-print SC278A.
primary gallium nitride switch tube is GaN Systems, 650V voltage-resistant, enhanced gallium nitride switch tube.
Two resonant capacitors come from VISHAY.
transformer is provided by Sumida.
Two black Y capacitors are used to anti-interference.
is used for output voltage feedback optocoupler.
Another optocouple is close-up for circuit protection.
Y capacitor close-up.
is a buck converter powered by the synchronous rectification controller.
Two customized models of synchronous rectification controllers, from ONSEM.
synchronous rectifier tube is ON Semi NTMFS6H801NL, with a voltage withstand 80V and a resistance of 2.7mΩ.
output filtered solid-state capacitor specification is 35V 680μF.
protocol chip uses Infineon CYPD3135, which is also the industry's first USB PD3.1 fast charging protocol chip, customized by Apple to Infineon .
output terminal current sensing resistor, four-wire resistor.
amplifier for output current detection.
output VBUS switch tube comes from AOS Bandai, AON6590A, withstand voltage 40V, resistance 0.99mΩ, DFN5*6 package.
USB-C port is connected to the main control PCB board through a flexible circuit board.
, let’s take a family photo.
Charging head network disassembly summary
Apple's 140W gallium nitride charger is a standard charger for the new MacBook Pro, continuing the smooth and round style design, equipped with independent module design and removable folding pins, which are portable and easy to use. Of course, as the first charger that supports USB PD3.1 fast charging, it supports up to 28V5A 140W fast charging, and its performance is also excellent.
charging head network learned through disassembly that this 140W gallium nitride charger maintains Apple's consistent high-level material processing requirements. The PFC+synchronous step-down + LLC switching power supply architecture is designed, and it is speculated to be a fixed LLC ratio, and the output voltage is adjusted through synchronous step-down. The input end is equipped with an rectifier circuit , which combines active and passively. Most of the controllers and MOS tubes are customized material numbers, from internationally renowned manufacturers such as Sci-Fi, Infineon, ON Semi, and Toshiba.
power supply primary control using a ST microcontroller, paired with two ON Semi drivers for step-down and LLC control, and there are two gallium nitride power tubes. The Japanese ruby electrolytic capacitor performs primary side filtering, and the secondary side synchronous rectification controller and synchronous rectification tube are both from Onsenmei. Overall, it is a product full of materials, which can be said to be quite in line with Apple's style. As the world's first charger that supports USB PD3.1 fast charging, the significance of its launch is self-evident. I believe that under the influence of Apple, more manufacturers will follow up quickly. At that time, a series of laptop , chargers, data cables and other accessories that support the new fast charging standards will also sprung up like mushrooms after a rain, and consumers will also enjoy the benefits of technological upgrades.
Previously, the charging head network also disassembled the original magnetic wireless charging of Apple Watch Series 7, Apple USB-C to USB converter, Apple Thunderbolt 3 to Thunderbolt 2 converter, Apple original MagSafe mobile power supply, Apple's new iMac comes with USB-C to Lightning braided cable, Apple MagSafe Duo Charger dual-entry wireless charger, Apple's original 2-meter Thunderbolt 3 Pro data cable and other products. Welcome to check it out.
