Hello, everyone.
Welcome back to today's video.
The charger we gonna teardown today is the Belkin 18W USB PD GaN wall charger.
We've torn down lots of wireless chargers of Belkin.
You can also click the right corner to check it out.
Back to today's video.
Firstly, we can see it adopts flame-retardant PC.
And the color is pure white.
And the size is relatively small, just like a cookie.
The Belkin logo is on the front.
And here's the specification.
It supports wide-range input of 100-240V~ 50/60Hz 0.6A.
And the output is 5V3A, 9V2A.
It adopts the U.S. standard foldable pins.
And some certification marks are in the middle.
The USB-C port is placed in the center.
And the bottom surface is smooth.
The length of the charger is 76.9mm (3.03 inches).
The width is 32.5mm (1.28 inches).
And the thickness is 15.1mm (0.59 inches).
The weight of the charger is only about 44g (1.55 oz).
Compared with Apple 20W PD charger, This one is thinner.
Then, compared with Realme 50W mini charger,
Belkin 18W is sightly thicker than Realme 50W.
Use ChargerLAB POWER-Z KT002 to test this charger.
It only supports Samsung 5V2A, DCP, and PD 3.0.
We can also see it has two fixed PDOs of 5V3A and 9V2A.
The power is about 18W when charging iPhone 12 Pro.
The power is about 14.8W when charging Samsung S21.
The power is about 17.2W when charging OnePlus 9 Pro.
The power is about 17.2W when charging OPPO Reno6 Pro.
OK, after the brief introduction of this charger, let's go ahead and tear it down to see what's inside.
After opening the shell,
we can see the heat sink is covered on the internal PCB.
And this is the insulating tape.
Take out the PCB module and remove the heat sink.
There are lots of thermal adhesives between the components on the front.
To reduce the thickness, the capacitors and I-shaped inductors are placed horizontally.
After cleaning up, We can see a hollow in the middle of PCB,
which is used to place the transformer.
ChargerLAB found it uses switching power supply for output and protocol chip to control output.
This is an input fuse.
And the input rectifier bridge is next to it.
Turn to other side,
there is a common mode choke, used to filter out EMI interference.
The I-shaped inductor is inside.
Here are three electrolytic capacitors.
All from topaz.
This one is 400V 12μF.
This one is 4.7μF.
The other is 6.8μF.
This is the master control chip, which comes from PI INN3279C.
The chip has built-in 750V PowiGaN technology and integrates quasi-resonant flyback controller,
GaN FET, and synchronous rectifier controller, reducing external components.
This is the Hunteck secondary synchronous rectifier MOSFET, which is controlled by master control chip.
Two synchronous rectifier filter capacitors are on the back.
One of them comes from APAQ. 12V 470μF.
The other one comes from CapXon.
Specification is 14V 560μF
There's an SMD Y capacitor between the primary and secondary circuit,
which comes from TRX.
The USB-C port is soldered on a small PCB.
And the output VBUS switch MOSFET is on that PCB.
Finally, let's see the protocol chip of output control, which is Hynetek HUSB350.
This is a high-performance and highly integrated USB PD controller.
It integrates mainstream charging protocols and is suitable for power adapters, car chargers, etc.
Well, that would be all for this Belkin 18W USB PD GaN wall charger.
It adopts thin and flat shape, just like a cookie.
You can even put it in your jeans when you go out.
So, it is most suitable for those people who need to travel a lot.
OK, that's all for today's video.
We are planning to tear down the latest Apple 140W power adapter.
If you wanna see it, don't forget to subscribe to us and leave your comments.
See you in the next video.
Bye.