Introduction
ChargerLAB has snagged the WEKOME WP-U47 45W GaN charger. Built for ultimate portability, it sports a smooth, rounded square chassis paired with foldable prongs, making it a stellar travel companion for your daily grind or cross-country trips.
Performance-wise, it packs dual USB-C ports with a 45W ceiling, intelligently splitting power at 25W and 20W when both ports are active.
Real-world checks show both ports support an extensive protocol list—QC3.0, FCP, SCP, AFC, PD3.0/PPS, QC4+, and Apple 2.4A. From your phone and tablet to a slim laptop, it delivers a true blind-plug fast-charging kick.
Under the hood, it runs a full Injoinic power chip architecture for maximum integration. Stay tuned as ChargerLAB breaks down the hardware and component selection piece by piece.
Product Appearance
The front of the packaging box features the WEKOME logo, the product model WP-U47, and the "45W GaN CINSUY CHARGER" product identification, with the 3C certification mark printed on the right.
The back of the box displays usage scenario illustrations along with detailed specs and parameters in both Chinese and English.
Unboxing reveals the WEKOME 45W charger unit, a product manual, and a certificate of conformity.
The charger features a splicing design combining a glossy white surface with a matte texture, and the side is prominently printed with "45W GaN III" for high recognition.
The overall design of the charger is square with smoothly rounded edges, offering an exceptional hand feel.
The output interface panel is equipped with dual USB-C ports, marked with power allocation labels of "C1 45/25W" and "C2 45/20W" respectively for easy user identification.
Designed with foldable prongs, the input end tucks away cleanly for hassle-free packing without nicking your other gear. Meanwhile, the flank of the charger keeps it ultra-clean with a minimalist white aesthetic.
Unfolding the foldable prongs reveals a US-standard plug design.
A detailed product parameter nameplate is printed on the bottom panel beneath the prongs.
Power Adapter (Model: DR16CC)
Manufacturer: Darsin Technology (Shenzhen) Co., Ltd.
Country of Origin: Made in China.
Input: 100-240V~ 50/60Hz 1.2A Max.
Output (Type-C1/C2): 5.0V 3.0A, 9.0V 3.0A, 12.0V 3.0A, 15.0V 3.0A, 20.0V 2.25A (45W Max).
Dual-Port Output (Type-C1+C2): 25W + 20W.
Total Max Power: 45W Max.
Fast Charging Protocol Compatibility
ChargerLAB POWER-Z KM003C shows that the USB-C1 port supports QC3.0, FCP, SCP, AFC, PD3.0/PPS, QC4+, DCP and Apple 2.4A.
And it also supports five fixed PDOs of 5V3A, 9V3A, 12V3A, 15V3A and 20V2.25A, and features a PPS subset: 5.00-11.00V 4.50A.
ChargerLAB POWER-Z KM003C shows that the USB-C2 port supports protocols are identical to those of the USB-C1 port.
And it also supports five fixed PDOs are identical to those of the USB-C1 port.
Physical Specifications
That's how big it is in the hand.
Put it with Apple’s 140W dynamic charger, it is noticeably similar.
The length of the charger is about 42.80mm (1.685 inches).
The width of the charger is about 34.07mm (1.341 inches).
The height of the charger is about 34.18mm (1.346 inches).
The weight is about 83.2g (2.93 oz).
After a brief overview of the product's exterior, ChargerLAB continues to bring you the actual teardown of the product.
Internal Construction
Prying open the chassis along the base seam reveals that the internal PCBA is completely encapsulated in gray thermal potting compound.
Extracting the internal PCBA entirely shows that the interior is fully filled with thermal potting compound, which provides internal heat dissipation and serves as a physical drop-resistant and shock-absorbing buffer.
The length of the PCBA is about 30.27mm (1.192 inches).
The width of the PCBA is about 30.35mm (1.195 inches).
The height of the PCBA is about 37.25mm (1.467 inches).
After cleaning away the thermal potting compound, it is clearly visible that a multi-PCB combined soldering design is adopted.
On the other side of the PCBA, the transformer and primary high-voltage filter electrolytic capacitors can be seen closely arranged.
Continuing to separate the multiple PCBs and caps.
The front of the bottom mainboard, plug-in components such as high-voltage filter electrolytic caps, differential mode chokes, and transformers are primarily placed, achieving a high space utilization rate.
The back of the bottom mainboard is equipped with components such as the primary master control chip, SMD Y-cap, and optocoupler.
The front of the Type-C1 PCB, the protocol chip, filtering chokes, and NTC thermistor are distributed.
The back of the Type-C1 PCB is populated with components such as a rectifier bridge.
The front of the Type-C2 PCB is equipped with components including a protocol chip, alloy choke, and solid filtering cap.
There are no chips on the back of the Type-C2 PCB.
The WEKOME 45W GaN charger leverages a vertical multi-PCB 3D stacking layout to squeeze maximum performance into an ultra-miniature footprint.
Powered by a QR architecture alongside an all-Injoinic power chip ecosystem, the internal assembly relies on heavy thermal potting compound to optimize heat dissipation and absorb shock from drops.
Primary Circuit Analysis
The SMD fuse at the input end, used for input overcurrent protection.
A SMD NTC thermistor at the input end comes from Jing Qin, used to suppress inrush current during power-up.
The common-mode choke is wound with a double wire consisting of an insulated wire and a bare copper wire, which is used to filter out interference in the power grid.
Here is an I-shaped choke.
The SMD rectifier bridge at the input end is from World, model WRMSB40M, spec 4A 1000V. Utilizing a softer recovery curve and smoother turn-off characteristics, this soft rectifier bridge reduces diode junction capacitance to minimize harmonic oscillation.
Here is the info about the World WRMSB40M.
The power supply cap for the master control chip is from JSH, spec 100V 10μF.
Two high-voltage filter electrolytic caps are also from JSH, spec 400V 33μF.
The Injoinic IP2075_36D is a high-performance multi-mode AC/DC flyback controller featuring an internally integrated 700V GaN FET, packaged in a DFN18L format.
Utilizing adaptive multi-mode control and secondary-side regulation technologies, it comprehensively supports various operating modes including QR, PFM, and CCM.
Powered by its highly integrated GaN power device design, it significantly streamlines the peripheral circuitry on the primary side of the charger, specifically developed for the PD fast-charging adapter market targeting high power density.
The IP2075_36D integrates a high-voltage startup circuit and an X-cap discharge function. When AC input is removed, its HV pin automatically discharges the X-cap, eliminating the need for traditional startup resistors and achieving extremely low standby power consumption.
Under no-load output conditions, it enters burst mode to achieve zero standby power consumption and an ultra-low quiescent operating current, easily meeting stringent Level VI energy efficiency standards such as CoC V5 and DoE VI.
Additionally, it combines frequency foldback and valley switching technologies to reduce switching losses, while featuring a built-in frequency jittering circuit that significantly optimizes EMI radiation and common-mode noise performance.
Regarding protection functions and packaging, the Injoinic IP2075_36D integrates comprehensive system-level protection mechanisms and offers rich customizable configuration parameters. Its built-in protections include multiple safeguards such as output OVP/UVP, VDD OVP, input OVP, configurable OTP, and compensated OPP.
The primary main switching transformer, marked DR16-45 MDF 2551.
The SMD Y-cap is from Jing Qin, model Y1X1Y5U102M.
The SMD optocoupler spanning the primary and secondary sides, marked 1019 H48EH, which is used for output voltage feedback and voltage regulation.
Synchronous Rectification Circuit Analysis
The synchronous rectifier chip is from Injoinic, model IP2028_MQ, which is a synchronous rectifier controller integrating a 100V/10mΩ MOSFET and packaged in a SOP8L format.
It is primarily used to replace rectifier Schottky diodes in high-efficiency flyback power supplies. By detecting the drain-source voltage of the synchronous rectifier MOSFET, it outputs an ideal drive signal to turn the MOSFET on or off. This application can effectively reduce the power loss of the secondary-side rectifier, enhance conversion efficiency, and lower temperature rise, thereby achieving higher power density.
The IP2028_MQ supports wide-voltage output systems ranging from 3.3V to 28V, with an output range that can go as low as 0V. It does not require an additional auxiliary winding for power supply, relying instead on an internal voltage regulator circuit to generate an appropriate supply voltage, which significantly streamlines peripheral BOM components.
Furthermore, it supports both high-side and low-side rectification configurations, and is fully compatible with various system operating modes including continuous conduction mode (CCM), discontinuous conduction mode (DCM), quasi-resonant mode, and ZVS.
Fast Charging Output Circuit Analysis
Here is a chip, marked LA065A.
The protocol chip corresponding to the USB-C2 interface is from the Injoinic, model IP2723T, which has obtained the USB-IF PD3.0 PPS certification with TID: 3135. It is a fast-charging protocol IC integrating multiple protocols for USB output ports.
It supports a wide variety of fast-charging protocols, including USB Type-C DFP, PD2.0/3.0, PPS, HVDCP QC4, QC4+, QC3.0/2.0, FCP, SCP, AFC, MTK PE+ 2.0/1.1, Apple 2.4A, BC1.2, and Samsung 2.0A.
The IP2723T provides a complete Type-C solution for unidirectional output applications such as adapters and car chargers. Furthermore, it features high integration and rich functionalities, requiring only a minimal number of peripheral components during implementation, which effectively reduces the overall solution size and lowers BOM.
The corresponding VBUS MOSFET is from YouCrystal, model YC15N03AD, 30V and 10.5mΩ, and packaged in a DFN6 package.
The protocol chip corresponding to the USB-C2 interface also is from Injoinic, model IP2723T.
The corresponding VBUS MOSFET is also from YouCrystal, model YC15N03AD.
A low-voltage filter cap is from NJCON, spce 25V 680μF.
Another output filtering cap, spce 25V 100μF.
Well, those are all components of the WEKOME WP 45W GaN Charger.
Summary of ChargerLAB
The WEKOME WP 45W GaN Charger sports a sleek, minimalist aesthetic with a smooth, rounded square white chassis and foldable prongs—combining eye-catching style with ultimate pack-and-go convenience for frequent travelers.
Delivering up to 45W of total power via dual Type-C ports with identical protocol and voltage support, it effortlessly powers slim laptops, smartphones, and tablets alike with a worry-free blind-insertion design.
Under the hood, it harnesses a full Injoinic power architecture. Featuring an Injoinic integrated GaN controller on the primary side, a co-packaged synchronous rectifier MOSFET, and dual IP2723T protocol ICs, the ultra-compact component layout slashes footprint and drives high-density performance.
In short, it's a pocket-friendly, highly versatile, and robustly engineered GaN fast charger.
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