Maorui Technology Co., Ltd. is a company dedicated to the design, research and development, sales and technical services of high-performance analog and mixed-signal integrated circuits, founded by a team of senior experts with rich experience in world-class semiconductors, and its products are mainly positioned in high-performance power management, automotive electronics, power drive modules, motor drives and sensor technology and other applications, and have achieved outstanding results in the fields of communications, industrial and consumer power supplies. At present, the company has accumulated a large number of intellectual property rights in advanced processes, and has obtained 27 authorized patents (17 invention patents and 10 utility models), and 42 integrated circuit layout rights.
Recently, when the charging head network sorted out the dismantling cases of Moruixin, it was found that the Moruixin MK2697 series main control chip has been the best chain of many well-known domestic and foreign manufacturers such as Baseus, Acer, Realme, Nubia, etc., which will be introduced to you in detail below.
The switching power supply main control IC Maelite MK2697 is a QR PWM controller optimized for PD fast charging applications. The controller has a wide VCC operating voltage range (9V-90V) which can make it cover PD PPS from 3The output range of 3V to 23V does not require the use of additional auxiliary windings or linear buck circuitry.
The MK2697 adopts Marexin's proprietary drive technology to simultaneously optimize the voltage stress of primary and secondary power tubes. The operating frequency is up to 200kHz, and it supports the design of high-frequency and small-volume PD fast charging source.
For energy efficiency requirements, the MK2697 adopts adaptive multi-mode due to the multiple output voltages of PD fast charging. It adjusts the QR mode to work at different frequencies under different loads and different outputs. At light loads, it will work in burst mode to improve efficiency.
MK2697 provides comprehensive protection functions, including output OVP, OPP, VCC, OVP, Brown-in Out, secondary side SR short circuit protection, pin open short protection and other rich protection functions.
Related reading: 1. Teardown report: Baseus 65W 2C1A gallium nitride charger.
2. New design, breaking through the volume limit, Baseus 65W GaN3 Pro gallium nitride charger disassembled.
3. Dismantling report: AISAWATE 65W 2C1A GaN fast charging charger.
4. Dismantling report: Pluagr Chuangfuyuan 35W dual C-port fast charging charger.
5. Dismantling report: uoco45W dual USB-C GaN charger.
6. Dismantling report: Baseus 67W 2C1A+HDMI multi-function gallium nitride desktop charger.
7. Teardown report: Realme 67W 1A1C dual-port fast charging charger.
8. Dismantling report: SYNCWIRE 30W gallium nitride charger.
9. Dismantling report: Tlock hard box 65 gallium nitride gaming socket.
10. Dismantling report: Acer 65W 1A1C GaN charger.
11. Dismantling report: Gushi 30W 1A1C GaN charger.
12. Dismantling report: Momis 65W 3C2A gallium nitride travel charger.
The MK2697A, a QR PWM controller optimized for PD fast charging applications. Its wide VCC operating voltage range (9V-90V) allows it to cover PD PPS from 3The output range of 3V to 23V does not require additional windings or linear buck circuitry, and can be switched up to 130kHz.
The MK2697 is designed for energy efficiency requirements and uses adaptive multi-mode due to the multiple output voltages of PD fast charging. It can be adjusted to work with DCM QR under different loads and different outputs. At light loads, it will work in burst mode to improve efficiency.
MK2697A provides comprehensive protection functions, including output OVP, OPP, VCC OVP, Brown-in Out, secondary SR short circuit protection, pin open short protection, etc.
Related reading: 1. Dismantling report: Nubia Dabai 20W dual-port gallium nitride charger.
2. Dismantling report: UOCO65W 2C1A GaN Fast Charger.
3. Dismantling report: Gushi Technology 30W 1A1C dual-port fast charging charger.
4. Dismantling report: Opaiqi 65W 2C1A Super Silicon Fast Charger HN251A
5. Dismantling report: Huakesheng mini 33W fast charging charger.
6. Dismantling report: Huakesheng mini 30W gallium nitride fast charging charger.
7. Dismantling report: Quanyouxing 65W 2C1A gallium nitride charger.
8. Dismantling report: Baseus 30W 2A1C fast charging socket.
9. Dismantling report: Ruiliang mini 33W gallium nitride charger.
10. Dismantling report: Baseus 40W 2C1A gallium nitride desktop socket.
11. Dismantling report: Yisheng Electronics 65W 2A2C gallium nitride extension cord socket.
13. Dismantling report: Baseus 65W 2C1A gallium nitride charger.
The MOR2697G is a high-frequency QR AC-DC PWM controller with SOT23-6 extremely small package, with a VCC withstand voltage of 110V and support 9-90V VCC power supply, without external voltage regulator circuit, reducing the layout space and making it more flexible. The patented drive technology supports direct-drive enhanced GaN power devices while optimizing SR VDS stress, effectively improving product efficiency and power density.
The MK2697G has adaptive multi-mode characteristics to meet the energy efficiency requirements of PD fast charging at different output voltages, and the operating frequency of 200kHz can make full use of the advantages of GaN switches, improve efficiency and reduce the size of the adapter.
The Mk2697G has protection functions such as output overvoltage, overpower, VCC overvoltage, input overvoltage protection, synchronous rectifier short-circuit protection, etc., and is suitable for USB PD chargers and high power density power supply applications.
Related reading: 1. Teardown report: Philips 30W 1A1C GaN charger.
2. Dismantling report: UOCO40W dual USB-C GaN charger.
3. Dismantling report: PILOT Jinxiang multi-functional gallium nitride desktop magnetic charger M230
4. Dismantling report: IFORY Mini 30W GaN Charger.
5. Dismantling report: ON 65W 1A1C gallium nitride charger.
6. Dismantling report: Gushi 45W gallium nitride charger.
7. Teardown report: Nitride 65W 1A1C ultra-thin GaN charger.
The MK2697 series chip launched by Moruixin is a main control chip optimized for PD fast charging, which can meet the wide voltage output of PD PPS fast charging with one chip, support built-in multi-mode automatic switching, high efficiency, and streamlined peripherals to meet the needs of fast charging with high power density.
At this stage, the MK2697 series chips have entered the ** chain of mobile phones and accessories manufacturers such as Realme, Baseus, Acer, Gushi, etc., and the product quality is obvious to all, and the annual shipment volume is very considerable. In the future, Morui will continue to follow the needs of manufacturers and launch more high-performance power chips to effectively promote the development of the fast charging field.