Detailed analysis of the MagSafe charging test and open MagSafe charger for Airp

Dear

How are you?

Do you remember Apple release new Airpods 3 on 19th.Oct? We got the real new Airpods 3 today, And we test it immediately.

Here we want share this testing and Apple MagSafe Charger open for  you.

1.  MagSafe charger is perfect to charge Airpods 3.

      Here attached is the Vedio. Support PD20W

2.  Airpods 3 also support Lightning cable,  there is C to Lightning cable in box, Also support PD20W charger to fast charging.

3. Here is the MagSafe charger open inside :

The bottom and the edge of the aluminum alloy shell design; the top surface of the plastic plate, smooth surface with a skin-like feel, Diameter is 55.86mm,The thickness is 5.28mm.

In the middle is a MOS tube, and the chip on the right is Cypress CPD2104, the Type-C interface controller. The Main IC is from TI.

Use a heat gun to blow it down, through the package to determine its TPS61178, boost converter, the input boost for wireless charging power level power supply, thus presumably Apple 15W wireless charging is in the 7.5W wireless charging based on elevated voltage, increasing the transmission power, the charge pump in the machine buck charging. The other side features a 3.3μH alloy inductor for boosting.

The components on the USB C circuit board act as a voltage booster. The input Type C alone has made such a complex design, which shows that this product is not ordinary. The following proceeds to disassembly of the wireless charging board.

The aluminum housing will be disassembled, the edge of the magnet ring consists of multiple small magnets, and glue fixed, the middle of the wireless charging coil placed, pad glue insulation reinforcement. There is a plastic ring isolated between the coil and the magnet, and a detection coil is attached to the plastic ring. The back of the magnet is equipped with a groove, wireless charging circuit board embedded in the groove, playing glue to help fix.
Inside the two shields are the control part and wireless charging part respectively.
MPS buck IC to power the wireless charging microcontroller.
TI TMP302 temperature detection chip, used to detect the temperature rise of the wireless charging board for overheating protection.
The wireless charger main control chip is ST STM32F446MEY6, high performance base series ARM Cortex-M4 MCU with DSP and FPU, with 512 KB Flash, 180 MHz CPU, ART gas pedal and dual QSPI.

Disassembly Summary
MagSafe magnetic wireless charger magnetic plus MagSafe wireless charging is its two core points, automatic adsorption alignment and 15W wireless charging, can be charged while playing, so that users get a new experience in wireless charging. And Apple's strength in wireless charging, the impact on the entire wireless charging market is huge, the future is well worth looking forward to.
The USB-C header alone has a fairly complex boost circuit designed inside, with the Cypress CYPD2104 used as the interface controller and the Texas Instruments TPS61178 used for boosting to increase transmission power. Wireless charging board, with TI TMP302 for over-temperature protection, using MPS buck IC for STMicroelectronics wireless charging main control chip STM32F446MEY6 power supply, wireless charging controller is also manufactured from Italy. In addition, the product from the cable to the charging board are quite good workmanship, the wire head internal use of steel sleeve spot welding protection, charging board internal magnet ring, PCB board and other glue fixed, PCB board with shielding cover.

Don't miss the first to market, Contact us to start the MFM MagSafe charger now!

Best regards.

Mobile/Wechat/whatsapp: +86 13714504149
skype: ammy.hu

[email protected]