Soundcore Life P2 Mini is equipped with 10mm drivers and supports 3 EQ modes – including Signature Mode that provides balanced sound, Bass Booster Mode that enhances the bass, and Podcast Mode that makes mid- and high-frequency vocals clearer. Built-in high-sensitivity microphone and support AI call noise cancellation. The earbud has a single battery life of up to 8 hours and the total battery life of up to 32 hours.
We’ve also previously teardown the Soundcore products including: Soundcore Liberty 3 Pro, Soundcore Liberty Air 2 Pro, Soundcore Life P3, Soundcore R100, Soundcore Life Dot 2, Soundcore Liberty 2 Pro, Soundcore Liberty Air 2, Soundcore AeroFit Pro and Soundcore A20i. Let’s take a look at the detailed teardown report of Soundcore Life P2 Mini.
01/ Soundcore Life P2 Mini Charging Case Teardown
Open the snap-fastened charging case shell and take out the internal charging bin structure.
The bottom structure of the charging bin, the battery is fixed to the motherboard through double-sided adhesive pads. The power input board is connected to the motherboard through wires.
Remove all components from the charging bin.
The bottom structure of the charging bin is equipped with four magnets for adsorbing and fixing the charging case cover and earbuds.
The charging case has built-in rechargeable lithium-ion battery label information, model: 13400, rated voltage: 3.7V, rated capacity: 540mAh 1.99Wh, charging limit voltage: 4.2V, manufacturer: Xinyu Ganfeng Electronics Co., Ltd.
Tear off the outer insulation protective film of the battery. The information on the internal battery cell is consistent with the external label.
The circuit on one side of the battery protection board.
The circuit on the other side of the battery protection board.
Silk screen Y1IA lithium battery protection IC is responsible for battery overcharge, overdischarge, overcurrent, etc. protection.
Silk screen 8205 MOS tube works with lithium battery protection IC.
The circuit on one side of the power input board is equipped with a USB-C charging interface.
The power input is to the circuit on the other side of the small board.
The circuit on the side of the charging case motherboard.
The circuit on the other side of the charging case motherboard.
INJOINIC IP5518H is a multifunctional power management SoC that integrates MCU, boost converter, lithium battery charging management, battery power indicator, and supports 30V high withstand voltage – it can provide a complete power solution for TWS charging case. The high integration and rich functions of IP5518H require only a few peripheral components during application, reducing BOM costs.
IP5518H can be reprogrammed and withstand voltage 30V single-chip intelligent two-way communication compartment application, and can provide open-cover connection function.
IP5518H has built-in synchronous rectification boost DC-DC and built-in power tube, providing a maximum output current of 400mA and a boost efficiency as high as 93%. The DC-DC converter switches at 1.0MHz and can support low-cost inductors and capacitors. The linear charging of IP5518H provides a maximum charging current of 500mA, and the maximum charging current can be flexibly configured. Built-in chip temperature protection and input voltage intelligently adjust charging current.
IP5518H can realize independent detection of TWS earbuds and automatically enter charging mode after detecting that the earbuds are placed in the charging bin. The earphones automatically enter sleep state after being fully charged, and the quiescent current can be reduced to a minimum of 20uA. IP5518H has a built-in 8bits MCU, which can flexibly customize 4/3/2/1 LED or 188 digital tube power display. Built-in 12bits ADC can accurately calculate battery power.
Power inductor peripheral to power management chip.
Bluetooth pairing micro button.
SiliconWisdom SWD255S Hall element is a micro-power consumption, high-sensitivity S-pole unipolar Hall switch sensing device. The internal circuit includes a Hall slice, a voltage stabilizing module, a signal amplification processing module, a dynamic offset elimination module and a CMOS output stage.
SWD255S uses advanced Bi-CMOS technology and an overall optimized circuit structure, allowing the product to obtain extremely low input error feedback. Dynamic offset elimination technology is also adopted, which can eliminate the offset voltage caused by packaging stress, thermal stress, and temperature gradient, and improve the consistency of the device. At the same time, the product adopts an extremely miniaturized packaging process, which gives the product extremely high performance and market advantages.
Three LED indicators are used to feedback charging status.
02/ Soundcore Life P2 Mini Earbuds Teardown
Teardown the earbud cavity. The left side shows the speaker unit structure inside the front cavity.
The battery structure inside the rear cavity is covered with magnetic shielding stickers to prevent interference.
The front of the speaker is protected by a metal cover.
There are two tuning holes on the edge of the back of the speaker, which are protected by the wire mesh.
After actual measurement, the speaker size is about 10mm.
Take out the battery inside the rear cavity.
The bottom structure of the rear cavity, speaker and battery wires are welded to the motherboard respectively.
The earbuds have a built-in soft-pack button battery. The information on the label – Model: GF1254, nominal voltage: 3.7V, energy: 0.222Wh, from Xinyu Ganfeng.
Remove the earbud stem back cover. There is a bluetooth antenna and touch detection patch on the inside of the cover.
The main board structure inside the earbud stem cavity. There are magnets and charging cases inside the cavity for adsorption and fixation.
The circuit on one side of the earbud motherboard.
The circuit on the other side of the earbud motherboard.
Metal dome to connect bluetooth antenna and touch detection sensor.
Silk screen 83230 touch detection IC for touch control function.
Silk screen 4H AL1 lithium battery protection IC.
BES WT250U bluetooth audio SoC for wireless connection and audio data processing.
The MEMS microphone of Laser Engraving 1070 2171 is used for voice call function pickup.
Silk screen VOA IC.
A 26.000MHz crystal oscillator provides the clock for the bluetooth chip.
A metal copper post used to connect the charging case to charge the earbud.
The Soundcore Life P2 Mini charging case is compact in design, lightweight in size, and has a fine frosted texture that is resistant to fingerprints and scratches. The earbuds adopt the handle-shaped in-ear design, with the combination of matte and glossy textures, making them highly recognizable. A single earbud weighs only 4.4g and is equipped with 5 pairs of soft silicone eartips of different sizes, providing users with a light and comfortable wearing experience.
The charging case has a built-in 540mAh lithium battery and is equipped with an independent circuit protection board for charge and discharge protection. The motherboard uses INJOINIC IP5518H multi-function power management SoC, which integrates MCU, boost converter, lithium battery charging management, battery power indicator, supports 30V high withstand voltage, and provides a complete power solution for charging cases. SiliconWisdom SWD255S Hall element is also used for the cover opening connection function.
The earbuds has a built-in 10mm dynamic driver and a 0.222Wh soft-pack button battery, which are connected to the internal motherboard of the earbud stem through wires. The motherboard uses BES WT250U bluetooth audio SoC for wireless connection and audio data processing. It is also equipped with a MEMS microphone for voice call function pickup.
PS: Translated from 52audio