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Home › Reviews › Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review

Floyd
4 yearsagoReviews
0 11

Previously we disassembled the Samsung Wireless Charger Portable Battery (EB-U1200), and recently Samsung has released a new dual-mode wireless charging product: the Samsung Wireless Charger Duo Pad (EP-P5200). This charging pad lets you wirelessly charge up to two Qi-compatible smartphones, such as a Galaxy S10, iPhone X, or Pixel 3; or a QI-compatible smartphone and smartwatch, such as the Galaxy Watch, Gear S3, or Gear Sport. Next, let's give it a teardown treatment.


I. Unboxing

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

Our review unit is a Chinese domestic version in white.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

It comes with a AFC 25W charger.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

The Samsung Wireless Charger Duo Pad has two charging areas. One on the left side (Fast Charge 2.0) which is compatible with Qi certified phones and Galaxy Buds. The other one on the right side (Fast Charge) which is compatible with Qi certified phones and other Qi products. Also, it can charge Galaxy Watch, Gear S3. Gear Sport. When you charge two mobile devices (besides the Galaxy Watch) at the same time, you cannot use fast wireless charging 2.0.

The Fast Charge 2.0 and Fast Charge feature found in the Pad Fast Charger 2.0 is compatible with Samsung Galaxy S10 and Fast Charge is compatible with Samsung Galaxy Note9, S9, S9+, Note8, S8, S8+, S7, S7 Edge, Note5, S6 Edge+ and later models of the Galaxy S and Galaxy Note series and requires a wall charger (Use AFC 25W only, EP-TA300) and USB 2.0 cable. Galaxy S6, S6 Edge, Galaxy Watch, Gear S3, Gear Sport, Galaxy Buds only support normal wireless charging, without fast charging feature.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

Slides open reveals the items.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

Package contents: Wireless Charger Duo Pad, wall charger (AFC 25W), USB-A to USB-C cable, user manual, and warranty card.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

Wall charger model: EP-TA300. Input: 100-240v, 50-60hz, 1.0a. Output: 12v-2.1a, 5.0v-2.0a. Manufacturer: Solum Vina Company Limited. Made in Vietnam.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

USB-A port on the side.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

Compared to the Samsung EP-TA200 15W charger (on the left).

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

The included USB-A to USB-C cable.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

There is a sticker on top with printed instructions: the left side can be used for phones, while the right side can be used for phones or Samsung watches.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

Pilling off the sticker reveals a clean minimalist design.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

Ventilation holes on the sides and bottom.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

Close-up of the ventilation holes.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

Specifications on the bottom.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

Non-slip rubber pad on the left and right ends.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

ADVANCED CHARGE 2.0 area on the left.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

ADVANCED CHARGE area on the right.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

USB-C port in the center.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

A thickness of 18.05mm (0.71in).

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

Close-up of USB-C port.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

Close-up.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

Floating visual effect.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

There are two LED indicators for two wireless charging areas respectively.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

The LEDs feature a hidden design that they are not visible when they are off.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

It starts charging instantly when we put the phone on top. Our Samsung Galaxy S10+ shows it gets fast charging when it is on the left of the pad.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

Our Samsung Galaxy S10+ shows it gets fast charging when it is on the right of the pad.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

Using ChargerLAB POWER-Z FL001Super tester, we read a power output of 21.23W (12.00V/1.78A). Both the two Samsung Galaxy S10+ are getting fast wireless charging.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

Charging the Samsung Galaxy S10+ and iPhone Xs Max at the same time, our ChargerLAB POWER-Z FL001Super tester reads a power output of 16.78W (11.92V/1.41A). The Samsung Galaxy S10+ is getting fast wireless charging while the iPhone Xs Max is getting 5W normal wireless charging.


II Teardown

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

Removing the rubber pads on the bottom reveals several screws.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

Unscrew and open the shell.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

A fan occupies almost half of the internal.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

A Toshiba 5V 0.31A centrifugal fan.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

There are 3 sets of coil outputs on the PCB.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

The input goes through two independent step-down circuits for wireless charging.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

The smaller side has two separate coils, and the eight tubes are used for wireless charging. Six of the DFN2x2 packaged tubes are used for wireless charging, while the other two 3x3 are used for power switching of the coils.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

The Type-C port is screwed to the housing.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

Unscrew the screws for out next step.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

The fan is similar to the ones used in laptops.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

Vents around the wireless charging coil.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

The two coils are stacked up to offer better compatibility for different devices.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

An MCU controller and a wireless charging controller on the back.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

A wireless charging controller with two buck and drive circuits.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

Size comparison to a 1 Yuan RMB coin.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

IDT IDTP9236 wireless charging master control chip on the back of the board.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

Flash memory to store configs.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

Drive switching circuit, as seen on our Samsung Wireless Charger Portable Battery teardown.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

Another memory chip for IDTP9236.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

An IC chip, function unknown.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

Wireless charging drive circuit, four tubes form the H-bridge driver, and the SI7615A is used for power switching.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

Another set of coil drive tubes.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

DFN2x2 tubes.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

SI7615A for switching the power supply of coils.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

Silergy synchronous rectification step-down IC, two independent ways.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

BDJAWF lettering.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

Input TVS components and overvoltage protection tube.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

ETEK ET9539 provides overvoltage shutdown and overcurrent protection as input protection.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

2R2 step-down inductor.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

The buck output goes directly to the wireless charging power stage through a 20mΩ resistor.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

Type-C port from JNTC.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

another IDTP9236.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

Step-down IC from MPS powers the wireless charging chip.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

ABOV MCU for wireless charging protection and other functions.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

A Samsung custom chip.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

A switch.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

Date: April 4th, 2019.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

Two LED Indicators.

Samsung Wireless Charger Duo Pad (EP-P5200) Teardown Review-Chargerlab

All the components.


III ChargerLAB conclusion


The Samsung Wireless Charger Duo Pad offers all-in-one wireless charging solution for your phones and Samsung watches. It has a minimalistic design with an active cooling fan inside to take away the heat generated by fast wireless charging. We are also very impressed by the high-quality components and excellent craftsmanship of this wireless charging pad.

$87 $100 at Amazon US

Note: ChargerLAB is reader-supported. Our editors independently research, test, and recommend the best products. We may earn commissions on purchases made from links on our site.

Source: chongdiantou

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