Hi, guys. Welcome back to our channel.
Yesterday, we released the teardown of apple MagSafe battery pack, which is very popular.
We do appreciate that.
So, today, we gonna bring another teardown to all of you.
Which is a star product from Belkin.
Belkin BOOST CHARGE PRO 3-in-1 wireless charger with MagSafe.
This product has passed Apple’s MFM (Made for MagSafe) certification.
But the most important is, you can fast wireless charge your iPhone12 up to 15W.
Cause there are not many chargers that can achieve 15W wireless fast charging for iPhone,
except apple’s own.
Price will be $139.95.
So, let’s look at why it sells that high price.
Let’s open the box firstly.
The front side shows how can we use it.
Just put the iPhone 12, AirPods, and Apple Watch on the charging pad.
Here is the product name and MFM certification logo.
The backside is some product features, Such as MagSafe compatible, wirelessly charge
three devices at once, charge in any orientation and LED light.
We can find wall charger, wireless charger, and manual inside the box.
The output port of the charger is round DC port instead of USB-C.
The wireless charger is composed of the base, support rod, and two charging pads.
The bigger one is used to charge your iPhone, and the small one is used to charge your Apple Watch.
The base can be used to charge AirPods.
Take a look at the specification of the bottom pad.
Made in Vietnam.
Model is WIZ009.
It supports 40W input and output of 5-25W.
Including the 15W output of the iPhone 12 series.
It has passed the CE, EAC, KC, NOM, NYCE, RoHS and other certifications.
The input port is hidden in the T-shaped groove.
The right-angle DC port will not affect the stability after being inserted.
And then, start to tear it down.
Let’s tear off the bottom rubber pad firstly.
An iron plate is in the bottom, fixed by six screws.
We have removed all the rest of screws.
But the screws connecting the support rod are particularly difficult to remove.
We decided to skip that, cause it doesn’t affect our overall teardown.
Starting from the top, remove the top plastic cover.
The other side of the cover is PCB.
Remove the PCB.
The charging coil is on the other side.
The thermistor is in the middle, used to detect the temperature.
And then, turn to the PCB side.
Here is an input filter inductor.
This is an alloy step-down inductor.
This is also an inductor, and its outside is shielding layer.
There is also a layer of insulating tape outside the shielding layer.
Here is the synchronous buck converter, which comes from MPS MP2315
It is used to power the wireless charger after step-down.
And its input voltage is up to 24V, maximum output current is 3A.
This is the dual operational amplifiers from 3Peak LMV358B.
But now, it is used as a single operational amplifier.
The control chip of wireless charging transmitter adopts NuVolta NU1509, which integrated ARM-M0 core
and supports complete and comprehensive protection.
It also has high-precision FOD algorithm, built-in fast charge protocol and complies
with WPC1.2.4 EPP protocol.
This is full-bridge MOS tube, which comes from NuVolta NU1009A and is used for wireless charging transmission.
It has built-in switching regulator and LDO to power the master control chip.
And also integrates complete protection.
This is KYET’s special film capacitor for wireless charging.
The specification is 0.4μF, 100V.
This one is Texas Instruments TPS54335A, responsible for input step-down and power the wireless charging module.
The solid capacitor for step-down output filtering comes from Yongming.
Specification is 16V 82μF.
This is also the converter form MPS MP2315, used to power the wireless charging module of Apple Watch.
And the step-down inductor is next to it.
Continue to remove the cover of the wireless charger for iPhone.
The MagSafe module is inside.
You can directly see that there are 16 magnets and the coil used to charge the phone.
Take out the module inside.
And pry to open the metal case.
There is PCB and shielding layer inside.
Slowly remove the PCB.
All components are placed on one side of the PCB.
This is the filter inductor, used for filtering and reduce interference.
Here is the boost converter, which comes from Texas Instruments TPS61178.
And this cube is an alloy inductor, which can cooperate with boost converter to power the wireless charger.
The module uses a step-down IC from MPS MP2388,
responsible for powering the microcontroller of wireless charging.
Type-C port controller comes from Cypress CYPD2104.
The master control chip for wireless charging adopts STMicroelectronics STM32F446MEY6.
This is an MCU with DSP (Digital signal processing) and FPU (Floating point processing units).
And it has 512 KB Flash, 180 MHz CPU, ART accelerator and dual (serial peripheral interface) SPI.
A crystal oscillator is next to it, and provides the clock for the master control chip,
used for identification and authentication.
This is a customized wireless charging controller from STMicroelectronics STWPSPA1, packaged by CPS.
It has built-in power MOS tube driver and two power tubes inside and fewer components.
And it also has two external power tubes to form an H-bridge to drive the wireless charging coil.
Here are two MOS tubes and five white NPO resonant capacitors.
Finally, let’s look at the wireless charging coil, which is made of Litz wire
and can reduce losses at high frequencies.
Finally, let’s disassemble the Apple Watch part.
Just continue to remove the cover and screws.
Take out the module inside.
A large amount of glue is injected into the gap.
Dig out the wireless charging coil and PCB.
There is a hollow in the center of PCB.
This is electronic fuse from Texas Instruments TPS25940L.
It supports current detection of output and overcurrent detection of input.
Here is the synchronous boost converter, which comes from Texas Instruments TPS61252.
It has input current limit set by resistance.
And this is synchronous step-down converter, which comes from Texas Instruments TPS62560.
It’s used to power the master control of wireless charging and the maximum output current is 600mA.
Here are two half-bridge drivers from Texas Instruments TPS51604 and drive four MOS tubes
for wireless charging.
Here is another driver, used to drive the power tube of wireless charging.
Finally, we wanna say, this wireless charger is a product of in-depth cooperation with Apple.
Therefore, the price also continues Apple’s style
The price of $139.95 will be a little bit expensive.
But actually, after teardown, we can see that the inside components are pretty nice.
It adopts Apple’s officially certified MagSafe module.
Other chips also come from leading suppliers.
The complete PCB design and provided by NuVolta Semiconductor.
At the same time, the pure white appearance is very suitable to put it in the office or at home.
It can greatly save waiting time and maintain a tidy desktop to charge three devices at the same time.
If you’re interested in this product, you can go to Amazon and buy it.
If you haven’t seen the teardown of apple MagSafe, or if you wanna see some other Belkin teardown.
You can click the picture.
For more content, you can subscribe to us and visit our website at chargerlab.com.
See you soon.