Hi, guys. Welcome back to ChargerLAB.
As we all know, 65W is the most popular model of fast chargers.
Cause it can charge the phone and laptop at the same time while the size is relatively small.
Recently, Baseus launched its third generation of 65W GaN fast charger.
It adopts brand new structure design.
And the power density has reached 0.88W/cm³.
Today, We'll tear down this brand new charger.
The product is printed on the front side. And the specifications are on the back.
We can see that there are chargers and cables inside.
Use ChargerLAB POWER-Z KT002 to test the cable.
It comes with E-Marker chip and can support up to 100W.
It's very similar to the previous generation and adopts foldable pins.
There are two USB-C and one USB-A on the other side.
All of them are orange.
An LED indicator is in the corner.
Let's take a look at the bottom.
It supports input of 100-240V 50/60Hz 1.5A.
For the rest of the information. You can pause to take a look.
The "65W" and "GaN 3 Pro" are printed on the side of the charger.
Compared to the previous generation, we can see it's slightly smaller.
But compared to the Apple 61W charger, it's obviously smaller.
The length of the charger is about 63mm (2.48 inches).
The width is about 31mm (1.22 inches). Thickness is about 36mm (1.42 inches).
And the weight is about 117g (4.13 oz).
Use ChargerLAB POWER-Z KT002 to test the protocol.
USB-A supports Apple 2.4A, Samsung 5V2A, DCP and QC2.0/3.0, AFC, FCP, SCP, PE2.0 protocols.
Except for all protocols supported by USB-A,
USB-C can also support QC4+, PD3.0, and PPS protocols.
Maximum power is 65W.
It also supports five fixed PDOs of 5V3A, 9V3A, 12V3A, 15V3A, 20V3.25A.
And one PPS PDO of 3.3-11V 5A.
Let's try to test its compatibility.
Ok, let's go ahead and tear it down.
Open the shell and take out the internal module.
We can see a large area of copper heat sink is covered on it to dissipate heat.
The input of PCB is covered with thermal adhesives.
Remove the insulation plates and heat sinks,
We can see capacitors, inductors, and transformers on the front.
This module consists of multiple PCBs,
which can improve space utilization and achieve higher density.
There are two rectifier bridges on the small PCB at the input end.
The PCB on the side acrosses the primary and the secondary circuits, controlling the entire module.
Three ports are soldered on the same small PCB. There is a conductive fabric above the USB-A.
ChargerLAB found this charger adopts the switching power supply architecture
of high-frequency QR flyback topology.
And the output is controlled by a step-down protocol chip.
Remove the small PCB of input. Those two rectifier bridges come from Nhel.
The safety X capacitor, common mode choke, and resistor are at the back of the PCB.
This is the safety X capacitor from DGCX. Capacity is 0.22μF.
This resistor is used to suppress the surge impact.
A total of four electrolytic capacitors are used for input filtering.
Two of them come from JSH. 400V 27μF.
The other two also come from JSH. 400V 39μF.
The power supply capacitor of PWM chip comes from Yongming.
50V 10μF.
Remove the small PCB on the side.
The copper of this side is used for heat dissipation.
And the AC-DC control circuit is on the other side.
The master control chip comes from Meraki MK2697.
This is a QR PWM controller, which is optimized for PD fast charging.
The controller's wide VCC range is 9V-90V, covering the PD/PPS output range of 3.3V-23V.
This chip uses Meraki's own drive technology. So, it can support up to 200 kHz
operating frequency and is suitable for high-frequency, small-size PD fast chargers.
This GaN chip comes from Navitas NV6123, which is the enhanced version of NV6113.
It's optimized for the topology of high frequency and soft switching.
And it also integrates the driver and adopts QFN 6*8mm package.
The synchronous rectifier MOSFET comes from Lihomicro LH062N100.
An SMD Y capacitor is placed between the primary and secondary circuit,
which comes from TRX and is used for anti-interference of output.
This is a CT1019 optocoupler, used for feedback circuit of output voltage.
The output filtering capacitor comes from Yongming.
25V 560μF.
This is a JSH solid capacitor on the main PCB. 25V 330μF.
There is also an SMD Y capacitor from TRX on the back of the main PCB.
There are two MOSFETs in the corner, used for step-down output.
And those two same MOSFETs are next to it.
The LED indicator is in the corner.
Turn to the small PCB of output.
There are three ports and two solid filter capacitors.
Then, turn to the back of this PCB.
There are step-down chip, single-chip microcomputer,
and a VBUS switch MOSFET on it.
The step-down chip on the front side adopts ismartware SW3516H,
responsible for the step-down control and protocol identification of the USB-C2 and USB-A.
This is a highly integrated chip with 5A high-efficiency synchronous buck converter inside.
It can support up to 100W charging power and multiple fast charging protocols.
This chip on the back is ismartware SW3516H as well,
responsible for the USB-C1.
Those two toroidal-core inductors are respectively used for step-down circuits.
And two solid capacitors come from JSH, respectively used for the output filtering
of step-down circuits. 25V 220μF.
Finally, the single-chip microcomputer can
intelligently distribute the output power of three ports.
Well, that would be all components of this Baseus 65W charger.
As the third generation of the series,
it continues the performance and appearance of the previous generation.
And the size is slightly smaller, achieving the higher power density and better portability.
That's all for today's video. You can also click the corners to see the teardown of
other Baseus chargers you're interested in.
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