ChargerLAB has taken apart the compact version of Apple 35W dual USB-C port charger.
And just as we mentioned, Apple announced two 35W chargers at WWDC22.
So, we got the other 35W charger which adopts the traditional design.
Let me show you what it looks like inside.
First, the pure white packaging adopts the same design.
We can see two USB-C ports stand side by side.
Open the box. Here are some documents.
Just like the compact 35W charger, there's no cable inside.
This charger continues the design of traditional Apple chargers.
So, you may be familiar with it.
But those two USB-C ports are different from other Apple chargers.
Unlike the compact 35W charger, the input prongs can be detached.
You can easily replace different input prongs.
The specs info is on the side. Model is A2676.
It can support wide-range input of 100-240V 50/60 Hz
and output of 20V 1.75A, 15V 2.33A, 9V 3A, 5V 3A.
The maximum power is 35W.
Manufactured by Flextronics Power.
The size is about 56*56*28mm (2.2*2.2*1.1 inches).
And the weight is about 115g (4.06 oz).
It's slightly larger than 20W charger.
Compared to the old 30W charger, the size is almost the same,
but it has an additional USB-C port.
The POWER-Z KM002C shows it only supports PD3.0.
And four fixed PDOs are 5V 3A, 9V 3A, 15V 2.33A, and 20V 1.75A.
The PDO info will change if we test both USB-C ports at the same time.
This time, we've also done some tests to check how it works.
When we charge two iPads, the power is 16.5W respectively.
The power will drop to 1W, but it won't be disconnected after inserting the second iPhone.
Then, the power will gradually go back to normal.
And the power is around 19W and 16W, respectively.
When we charge iPhone and AirPods, the power is 1.7W and 26W, respectively.
When we charge iPhone and MacBook, the power is around 16.5W, respectively.
And when we only charge MacBook, the power is 33W.
It can charge Nintendo Switch, but the TV mode isn't supported.
After the brief test, let's take it apart to check what's inside.
Firstly, let's use the cutting machine to remove the outer plastic.
The internal components are covered with thermal pads for heat dissipation and fixing.
And here is the graphite thermal pad for heat dissipation.
Take out the PCB module, and the ground wire is fixed by a screw.
You can replace a three-prong plug to avoid the current leakage or electric shock.
The module is divided into AC-DC and secondary step down parts.
Two parts are connected through four black wires.
Remove all black covers.
ChargerLAB found it's equipped with a switching power supply circuit and two step-down circuits.
The secondary side of the transformer is directly connected to the output PCB.
Then, the output PCB is responsible for synchronous rectification and step-down.
Next, let's introduce all components one by one.
The input fuse is protected by heat-shrinkable tube and fixed here.
The safety X2 capacitor is under the fuse. 0.1μF.
And a common mode choke is next to it, wound with two wires.
The input bridge rectifier can convert AC into pulsed DC and comes from LITE-ON.
Three electrolytic capacitors are from CapXon.
22μF 400V.
66μF in total.
The differential mode choke isn't protected by heat-shrinkable tube and can convert pulsed DC
to pure DC through three electrolytic capacitors.
The master control chip is Apple's customized model, marked with APSLCA01.
It is also used in Apple 96W and 30W charger.
A MOSFET is from STMicroelectronics.
This is a current transformer, used for current detection.
The primary switch transistor is from AOS and adopts DFN8*8 package.
700V, 160mΩ.
Another MOSFET is also from STMicroelectronics.
The transformer is wound and insulated with tape.
This small capacitor can power the master control chip.
35V 47μF.
The small PCB next to the transformer is used for output voltage feedback.
And let's remove this small PCB.
A black safety Y capacitor is on the back.
And here's the EL1014 optocoupler.
Next, let's look at the output PCB.
It's equipped with two secondary step-down circuits. And a piece of copper foil is attached to the shell.
Most components and USB-C ports are paired, except for the protocol chip.
Flip to the back. We can find a synchronous rectifier,
two VBUS switch MOSFETs, two step-down MOSFETs,
and two synchronous step-down controllers from left to right.
The front synchronous rectifier controller is marked with TEV.
The synchronous rectifier is from Infineon and adopts SuperSO8 package.
150V, 9.3mΩ.
The solid capacitor is from Nichicon. 270μF 25V.
The protocol chip is also from Infineon, which is fixed by glue.
We found it is the same chip used in Apple compact 35W dual USB-C charger.
You can also click the upper right corner to check the previous video if you haven't.
Two synchronous step-down controllers are from MPS MP9928,
used for step-down control of two USB-C ports, respectively.
It integrates the half-bridge driver and supports programmable operating frequency.
It also has output overvoltage and overheat protection.
Two synchronous step-down MOSFETs are from ON Semiconductor,
which integrates dual MOSFETs for each.
30V, 6.4-11.6mΩ.
There're five parallel MLCC used for filtering.
And two 6R8 alloy inductors are also used for step-down.
Those three solid capacitors are from Nichicon FP5K series.
100μF 25V.
Two output VBUS MOSFETs are from AOS and adopt DFN3.3*3.3 package.
30V, 2.3mΩ.
Finally, two USB-C ports are fixed with white plastic and stand side by side.
Well, that's all components of this charger.
It continues the exterior design of older Apple chargers,
but its interior design and architecture are completely different.
The PCB module can be divided into two parts.
And the AC-DC part can output a fixed voltage.
Then, two secondary step-down circuits can output different voltages according to the devices.
The master control chip is a customized model, same as Apple 96W and 30W.
The rest of the components are from famous brands, like Infineon, MPS, LITE-ON, Nichicon, etc.
OK, that's it for today's video.
We'll also have more videos about this charger coming soon.
Stay tuned, and I'll catch you guys in the next video.