Introduction

ChargerLAB had done multiple charging tests on the UGREEN 300W Nexode 5-in-1 charger. It showed excellent charging performance.

In order to know how it performs so well, this time, we are going to take it apart to see its internal components. 

Product Appearance

The box is mostly black. In addition to five USB ports, there are also selling points such as PD3.1 and GaN on the left.

The GaN technology illustration is on the back of the box.

All specs info are printed here, we'll look at the info later.

The package includes the charger, an AC power cord, a dual USB-C cable, and some documents.

The dual USB-C cable adopts a pure black PVC high-density braided design.

Its length is about 1.5 m (4' 11'').

ChargerLAB POWER-Z KM003C shows that it is a PD3.1 cable and can support 240W of power transmission. It has an E-marker chip. And it also supports USB 2.0.

The AC power cord adopts a three-prong design. 10A 250V~.

Its length is about 2 m (6' 6.74'').

The charger continues the black metal paint color scheme of UGREEN. 

The 300W is printed on the front.

It has four black USB-C ports and one purple USB-A port on the output end.

There are large anti-slip strips on the bottom for stability.

All the specs info are above the input port, the same as what is on the box.

Model is CD333. It can support input of 100-240V~ 50/60Hz 4.2A. When used individually, the highest output for USB-C1 to USB-A is 140W, 100W, 100W, 45W, 22.5W, respectively. And the total output power can reach 300W.

The length of the charger is about 112 mm (4.41 inches).

The height is about 93 mm (3.66 inches).

And the width is about 53 mm (2.09 inches).

The weight is about 851 g (1.88 lb).

ChargerLAB POWER-Z KM003C shows that USB-C1 can support UFCS, QC3+, SFCP, MTK, PD3.1, PPS, QC5, DCP, SAM 2A, and Apple 2.4A charging protocols.

And it has six fixed PDOs of 5V 3A，9V 3A，12V 3A，15V 3A，20V 5A，28V 5A, and a set of AVS, 15-28V.

The USB-C2 supports FCP, SCP, AFC, QC3.0/5, SFCP, PE2.0, PD3.0, PPS, DCP, SAM 2A, and Apple 2.4A charging protocols.

And it has five fixed PDOs of 5V 3A，9V 3A，12V 3A，15V 3A，20V 5A, and a set of PPS, 3.3-21V5A.

The USB-C3 supports the same protocols as the USB-C2.

So as the PDOs.

And the USB-C4 supports FCP, SCP, AFC, QC3.0/4+, SFCP, PE2.0, PD3.0, PPS, DCP, SAM 2A, and Apple 2.4A charging protocols.

And it has five fixed PDOs of 5V3A, 9V3A, 12V3A, 15V3A, 20V2.25A, and a set of PPS, 3.3-16V 3A.

Finally, the USB-A supports charging protocols such as FCP, SCP, AFC, QC3.0, SFCP, PE2.0, DCP, and SAM 2A.

The charging power is about 28.26V 4.73A 133.63W when using the USB-C1 to charge the 16-inch MacBook Pro M1 Max.

Teardown

Next, let's start to take it apart.

Remove the input case, it is fixed with snaps. 

The anti-slip strips are fixed with double-sided tape.

The bottom case is secured with two screws.

Take out the PCBA module.

There are pink thermal pads pasted inside the case for heat dissipation.

The PCBA module is wrapped in copper sheets for heat dissipation, insulated by mylar sheets, and fixed by heat-resistant tape.

And the output end is also wrapped in copper sheets.

The copper sheets are fixed by soldering.

The length of the PCBA module is about 105 mm (4.13 inches).

The width is about 43 mm (1.69 inches).

And the height is about 82 mm (3.23 inches).

Remove the copper sheet and mylar sheet.

The components are even covered by another large thermal pad for heat dissipation.

There are also copper sheet and thermal pad on the back of the PCBA module for heat dissipation.

There is a small vertical PCB on the side of the PCBA module for soldering the AC socket.

The buck PCB of ports is used for output.

There are fuse, safety X2 capacitor, thermistor, common mode choke, capacitor, and transformers on the front.

There are LLC MOSFETs, a synchronous rectifier controller, and a 2-in-1 controller on the back. The primary and secondary sides are separated by the white dotted areas.

ChargerLAB found that it adopts high-efficiency PFC and LLC structure with fixed output voltage. And it also adopts the optocoupler for output voltage feedback. Next, we'll take a look at each component, starting from the input end.

Remove the AC socket PCB, there are blue Y capacitor, time delay fuse, NTC thermistor, safety X2 capacitor, and common mode choke.

The time delay fuse is from CONQUER MST series. 250V 5A.

The NTC thermistor is wrapped in heat-shrinkable tubing.

The yellow safety X2 capacitor is in the middle.

The common mode choke is wound with magnet and insulated wires.

Another safety X2 capacitor is 0.47μF.

The blue Y capacitor is on the side.

There is a ferrite bead on the other side.

The second common mode choke is wound with flat copper wires, and it's insulated with a bracket.

These two bridge rectifiers for power are connected in parallel. Model is GBU1510.

The film capacitors are from NISSEI. 1μF 450V.

The filter inductor is wound with magnet wires, and it's also insulated with tape.

The primary master control chip is from NXP. It is a digital configurable LLC and PFC combo controller for high-efficiency resonant power supplies.

It integrates X-capacitor discharge and driver. The PFC can be configured to operate in DCM/QR, CCM fixed frequency, or multimode which supports all operation modes to optimize the PFC efficiency. Model is TEA2017AAT.

These are two electrolytic capacitors for the master control chip. 47μF 50V.

The PFC boost MOSFETs are from Navitas. They are connected in parallel and integrate GaN FET and GaN driver. The MOSFETs support up to 2MHz switching frequency and a power supply of 10-30V and they adopt QFN6 x 8mm package. Model is NV6128. 650V 70mΩ.

Here is all the information about the Navitas NV6128.

Two resistors are connected in parallel, and they are used to detect PFC current. 65mΩ.

There are PFC boost inductor, green NTC thermistor, and solid capacitor for output filtering on the side of the PCBA

The PFC boost inductor is wound with ATQ31 toroidal core, and the toroidal core is insulated by copper foil.

The PFC boost rectifier is from Global Power Technology. It adopts SiC diode and DFN8 x 8 package. Model is G5S06508QT. 650V 8A.

Two electrolytic capacitors are from Acon. 450V 100μF.

Four MLCC capacitors are connected in parallel with the electrolytic capacitors.

These two LLC MOSFETs are Infineon CoolMOS series, they form half-bridges and adopt PG-VSON-4 package. Model is IPL60R125P7. 650V 125mΩ.

The resonant inductor is wound with ATQ23 toroidal core.

The resonant capacitor is from Faratronic. 0.047μF 630V.

The thermistor is used to detect transformer temperature.

The LLC transformer is wound with ATQ27 toroidal core, and the toroidal core is insulated by copper foil and the plastic case.

Two optocouplers are from Everlight. They are used for output voltage feedback and protection. Model is EL1019.

This is actually a dual LLC synchronous rectifier controller that is also from NXP. It can support voltage of 38V, far beyond the 28V output requirement of USB PD3.1. Model is TEA1995.

Two synchronous rectifiers are from Infineon. Model is ISC0805NLS. 100V 3.6mΩ.

These four solid capacitors for output filtering are from PolyCap RV series. It can withstand up to 125 °C (257 ℉). 680μF 35V.

The inductor for output filtering is wound with magnet wires.

The PCB of the ports we motioned before is used for secondary voltage step-down. Each port has its own buck inductor and solid capacitors.

There are buck master control chips, MOSFETs, and VBUS MOSFETs on the back of this PCB.

The buck master control chip is from iSmartWare, and it is a highly integrated multi-protocol dual-port charging SoC that supports charging of any USB-C and USB-A ports. It supports output of 20V 7A and 28V 5A. It supports PD3.1, QC, SCP, UFCS, and other fast-charging protocols. Model is SW3566H.

Here is all the information about the iSmartWare SW3566H.

It integrates CC and CV modes. It supports PWM and PFM working modes and adopts QFN4 x 4-32 package.

These two synchronous buck MOSFETs are from Ruichips, and adopt PDFN3333 package. Model is RUH4040M2. 40V 8mΩ.

The buck inductor for USB-C1 is wrapped in red heat-shrinkable tubing.

The solid capacitors for USB-C1 are from PolyCap RN series. 100μF 35V.

Model of the VBUS MOSFET is RUH4040M2.

The buck master control chip of USBC-2 and USB-C3 is also from iSmartWare. It is used for protocol identification. It is a highly integrated multi-protocol dual-port charging chip that supports charging of any USB-C and USB-A ports. It supports output of PD 100W. It supports PPS, PD, QC, AFC, FCP, SCP, PE, SFCP, and other fast-charging protocols. Model is SW3516P.

Here is all the information about the iSmartWare SW3516P.

Model of these two synchronous buck MOSFETs is RUH4040M2.

The buck inductor for USB-C2 is wrapped in black heat-shrinkable tubing.

These solid capacitors are all from PolyCap RN series. 100μF 35V. 220μF 25V.

The VBUS MOSFET is from NCE, it adopts DFN3.3 x 3.3 package. Model is NCEP3065QU. 30V 1.9mΩ.

The buck master control chip of USB-C4 is also from iSmartWare. It integrates a 3.5A high-efficiency synchronous rectifier buck converter. It supports CC/CV model. It supports PPS, PD, QC, AFC, FCP, SCP, PE, SFCP, and other fast-charging protocols. Model is SW3526.

Here is all the information about the iSmartWare SW3526.

The buck master control chip for USB-A is the same as that of USB-C4.

The plastic sheets inside the USB-C sockets are black.

The USB-A socket is purple and it has widened pins.

Well, those are all components of this charger.

Summary of ChargerLAB

The UGREEN 300W Nexode 5-in-1 charger supports a maximum output of 300W. The USB-C1 support 140W PD3.1. The USB-C2 and USB-C3 can support 100W output. When three ports are used at the same time, they all support 100W output. All five ports support multiple fast charging protocols.

It adopts a huge number of copper sheets and thermal pads for heat dissipation, even for a 300W charging beast. It adopts a highly integrated 2-in-1 controller from NXP for PFC and LLC control. And all the solid capacitors are from PolyCap. Most of the internal components are from well-known manufacturers, that is why it has such excellent charging performance.

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