Rome Shi recently launched a mobile power OM10, this mobile power capacity of 10000mAh, but the appearance of the change of the past style of Rome, looks very small, portable.
Next, we will bring you the internal disassembly of this mobile power supply.
One, Roman Shi OM10 mobile power appearance
The mobile power supply is made of flame-retardant PC+ABS material, pure white appearance, brand logo printed on the front, and '10′′ in the lower right corner indicates that the mobile power capacity is 10000mAh.
The product is produced by the Romans and the Seven Thousand Cats.
This mobile power supply is round and round, and the experience is very good. There is a power button on the side of the mobile power supply, and the mobile power can be activated by tapping.
The overall thickness of the mobile power supply is about the diameter of a coin, which is a relatively lightweight type.
In terms of charging interface, this mobile power supply is equipped with two USB-A interfaces, a Type-C interface, a Lightning interface and a MicroUSB interface. The type is more abundant, which is more suitable for the current market.
Model: OM10; Capacity: 10000mAh; Type-C port, Lightning port and MicroUSB port support 5V/2.1A input; two output interfaces support 5V/2.1A and 5V/1A output respectively.
The measured CAT9 is charged to Huawei, and the power is about 4.29W.
Second, Roman Shi OM10 mobile power dismantling
The mobile power supply case is connected by a snap connection, which can be basically dismantled and disassembled. There are three green cylindrical batteries and one PCB board inside. Three batteries are affixed with anti-shock cotton, and the PCB board and the outer casing are fixed by screws.
The housing power display section uses a black translucent panel to hide the internal LED display.
The other half of the outer casing is affixed with anti-shock cotton
Three 20650 batteries, from Shenzhen Zhuoneng New Energy Co., Ltd.; platform voltage is 3.6V; single battery energy is 12.06Wh, three batteries can form 10000mAh mobile power.
Only one wire is connected between the PCB and the battery. One of the contacts is directly soldered to the nickel strip of the positive battery of the battery, saving one wire.
PCB board positive solder joints are round and full
The front of the PCB is distributed with USB-A interface, MicroUSB interface, chip inductor, LED display and a single chip microcomputer.
Single-chip screen printing 7511AOK 1811 80920C, the program is provided by Shenzhen Lianxin Microelectronics Technology Co., Ltd.
PCB back view
Next to the USB-A output interface, there is a chip from Siyuan Semiconductor, model MP5043. It integrates the switch charge management module, the mobile power management of the synchronous boost discharge management module, etc. In addition, the MP5043 integrates the serial code output, which is convenient for the MCU to do. When external expansion (such as: digital tube application), read the working state of the chip, save the periphery of the overall solution, and streamline the overall BOM.
Shenzhen Siyuan Semiconductor Co., Ltd. is a digital-analog mixed-signal integrated circuit design enterprise with independent intellectual property rights. It aims to provide customers with comprehensive, high-quality battery management system-level chip solutions.
As a continuous developer of mobile power SoCs, it has accumulated stable shipments to 400 million! The follow-up will spare no effort to introduce more excellent SoC chips to provide customers with simpler and more reliable solutions!
Siyuan Semiconductor MP5043 Details
Silk screen XB8608A is a battery protection IC, overcharge protection voltage 4.3V, over discharge protection voltage 2.4V, over current protection 9A. Left side near Lightning has a six-pin chip SY6128, ultra-low static standby current (<15uA), 支持Type C to Lightning线输入充电.
Siyuan Semiconductor SY6128Details
Dismantled.
Summary of charging head network disassembly
In the mobile power supply of Rome Shi, the Siyuan Semiconductor MP5043 power management chip is adopted, which has dual USB-A output interface, the maximum output is 5V2.1A, and voltage adaptive output can be realized, even if the user plugs in two large load devices. , mobile power can still work normally without instant protection.
The battery used domestically produced 20650 batteries, compared with the imported 18650 batteries, under the premise of achieving the same function, it has a cost advantage.
