In 2020, gallium nitride fast charging technology has entered the fast lane of development. According to statistics from the Charging Head Network, in the mobile phone industry, which is a consumer electronics vane, many well-known brands such as Huawei, Xiaomi, OPPO, Meizu, Samsung, Nubia, and realme have launched gallium nitride fast charging products. In terms of e-commerce, 17 brands have launched dozens of new gallium nitride fast charging products.
As the gallium nitride fast charging market is growing rapidly, the power segment of 65W just solves the pain points of most users, thus becoming the first to become a must-fight place for major brands. Whether it is the Besi 65W 2C1A multi-port gallium nitride charger endorsed by Luo Yonghao, or the Xiaomi 65W single-port gallium nitride charger endorsed by Lei Jun, it is all right for consumers. These two products have also achieved considerable sales.
At the same time, the maximum power of gallium nitride fast charging was also constantly refreshed in 2020. After HYPER JUICE launched 100W 2C2A four-port gallium nitride fast charging, Bes launched 120W 2C1A three-port gallium nitride fast charging, and obtained the first super-high power CCC certificate issued by CQC.
is to help everyone have a comprehensive understanding of the popular 65W gallium nitride fast charger on the market. Based on previous product disassembly cases, the Charging Head Network summarizes today's 65W gallium nitride fast charging special article.
This issue of the 65W gallium nitride fast charger disassembly summary topic includes 16 popular products on the market, including Anker, Bes, Xiaomi, Meizu, Nubia, Jingzao, OPPO, RAVPOWER and other brands. The main suppliers of the above products include PI, Nawei, and Innosec. Hereinafter, the editor will divide the content of the article into three parts according to the supplier of gallium nitride power chips for your reference.
PI
Power Integrations, Inc. (PI) is a supplier of high-performance electronic components and power solutions with a history of more than 30 years and a high-performance electronic components and power solutions focusing on high-voltage power management and control. Its product quality and brand are highly recognized worldwide. PI's integrated circuits and diodes have designed compact and energy-efficient AC-DC power supplies for a large number of electronic products including mobile devices, TVs, PCs, home appliances, smart meters and LED lights.
main control chip: PI SC1933C
gallium nitride power device: PI SC1933C built-in
synchronous rectifier chip: PI SC1933C built-in
protocol chip: Cypress CYPD4225
Editing comments: ANKER PowerPort Atom PD 2 The design of the GaN charger is very "ANKER". Whether it is the outer packaging of the product or the appearance of the product itself, it has a strong "ANKER" style. The piano painted shell has a warm touch, and the combination of pure white body, silver-gray text and blue interface is very recognizable. In terms of
interface, the biggest difference between the ANKER PowerPort Atom PD 2 GaN charger and other 60W PD chargers on the market is that they are equipped with 2 USB-C output interfaces, and both support PD fast charging protocols. In the case of single-port output, it supports four gears: 5V/3A, 9V/3A, 15V/3A, and 20V/3A PD. In the case of dual-port output, the interface supports four gears: 5V/3A, 9V/3A, 15V/2A, and 20V/1.5A, which can meet the charging needs of most devices. After disassembly, the charging head network of
found that the ANKER PowerPort Atom PD 2 charger uses PI PowiGaN series product SC1933C, built-in controller and GaN power devices, etc., which not only has high integration, but also has high efficiency and less heat generation. The secondary side dual-port output adopts a secondary buck solution, and both USB-C interfaces use Nanxin's SC8001 synchronous buck controller; the dual-port design is independently designed and controlled by the same protocol chip Cypress CYPD4225, supporting intelligent switching of output power.
In addition, a large number of auxiliary heat dissipation measures are used inside the charger. The front is a metal heat sink and the back is a thermal sticker. The USB-C small boards are also designed with thermal stickers. A sufficient safe distance is reserved between the primary and secondary, and a hollow design is adopted near the transformer to add an insulating baffle; glue injection is used between larger plug-in components to increase mechanical strength to ensure the performance and reliability of the whole machine.
main control chip: PI SC1936C
Gallium nitride power device: PI SC1936C built-in
synchronous rectifier chip: PI SC1936C built-in
protocol chip: Zhirong SW3516×2
Editing comments: Biyazi This 2C1A 65W gallium nitride charger is small in size and light in weight, and is equipped with foldable pins and is easy to carry. Among them, port A supports multiple fast charging protocols such as QC2.0/3.0, AFC, FCP, and SCP, and has good compatibility; port C1 has five fixed voltage gears of 5/9/12/15/20V and 3.3-16V/3A PPS voltage gears; port C2 has five fixed voltage gears of 5/9/12/15/20V and 3.3-11V/3A PPS voltage gears. It has many support protocols and complete voltage gears, which can meet the fast charging needs of most electronic products in daily life.
Charging Head Network learned through disassembly that this charger, Biyaz, has built-in PI SC1936C gallium nitride power device, not only has high integration, but also has better efficiency and lower heat generation. The secondary side adopts a secondary buck circuit architecture, and the two Zhirong SW3516Hs realize the buck output and protocol recognition functions of the USB-C1 interface and the other 1A1C interface respectively, supporting intelligent power distribution. In addition, a small PCB board is welded on the input and output ends, which makes the internal space fully utilized and the charger volume is further compressed. In terms of
heat dissipation, the power devices and transformer parts inside the charger have added thermal pad designs. The entire PCBA module is wrapped with copper plates to play a role in uniform heat dissipation; the internal glue is sufficient and the stability is good. The overall material of the charger is solid.
main control chip: PI SC1933C SC1933C Built-in
synchronous rectifier chip: PI SC1933C Built-in
protocol chip: Zhirong SW3516
Editing comments: Jingdong made this 1A1C 65W gallium nitride charger is small in size and light in weight, and is equipped with foldable pins for easy portability. Port A supports multiple fast charging protocols with QC2.0/3.0, AFC, FCP, and SCP, with good compatibility and a maximum output of 30W; Port C has five fixed voltage gears of 5/9/12/15/20V and two PPS voltage gears of 65W. The charger supports many protocols and complete voltage gears, which can meet the simultaneous fast charging needs of two electronic products.
charging head network learned through disassembly that this charger uses PI SC1933C gallium nitride power device, Zhenmaojia secondary rectifier MOS and two Zhirong SW3516 buck control chips, and is paired with Ruijun RUH4040M2 MOS tube to achieve intelligent power distribution; the input end uses Yongming KCX series fast charging power special electrolytic capacitors, and the output end uses solid-state capacitor filtering, and the overall material is solid.
In addition, a small PCB board is designed to make full use of the internal space and the charger volume is further compressed. In terms of heat dissipation, the front and back of the PCB board are equipped with large metal heat sinks to evenly dissipate heat and reduce the temperature rise of components. There are thermal pads on the top of the transformer to help conduct heat, and the board is glued to fix and strengthen heat dissipation.
main control chip: PI SC1936C
gallium nitride power device: PI SC1936C built-in
synchronous rectifier chip: PI SC1936C built-in
protocol chip: Zhirong SW3516×2
Editing comments: Nubia's 2C1A 65W deuterium front gallium nitride charger is small in size and light in weight, and is equipped with foldable pins and easy to carry. All three interfaces support multiple fast charging protocols such as QC2.0/3.0, AFC, FCP, and SCP, and have good compatibility; the two C ports also have five sets of fixed voltage gears and PPS voltage gears. The charger supports many protocols and complete voltage gears, which can meet the daily fast charging needs of most electronic products.
Charging Head Network learned through disassembly that this charger has built-in PI gallium nitride power device, which not only has high integration, but also has better efficiency and lower heat generation. In addition, it also uses Bandai secondary rectifier MOS. The secondary buck circuit is divided into two outputs, and is controlled by two Zhirong SW3516H to realize the buck output and protocol recognition functions of the USB-C1 interface and the other 1A1C interface, supporting intelligent power distribution; the input and output are all capacitive filtered by Shanghai Yongming Electronics, and the overall material is solid.
In addition, a small PCB board is welded on the input and output ends, which makes the internal space fully utilized and the charger volume is further compressed. In terms of heat dissipation, the front and back of the PCB board are equipped with large-area metal heat sinks to dissipate heat evenly, and the internal power devices and transformer parts have added thermal pad design. In addition, a large amount of glue is added to the board to help conduct heat while enhancing internal stability.
main control chip: PI SC1923C SC1923C built-in
synchronous rectifier chip: PI SC1923C built-in
protocol chip: Racchimum Micro RK725B
Editor Comment: OPPO This 65W original gallium nitride fast charger is manufactured by Optoelectronics Technology Co., Ltd. The product has a round appearance and a small size. It supports a maximum output of 65W and is equipped with two gears: 5V/2A, 10V/6.5A. It is backward compatible with SuperVOOC, VOOC and other protocols, and is suitable for all fast charging mobile phones in the OPPO family.
Charging Head Network learned through disassembly that this charger mainly uses PI customized PowiGaN main control chip, which has the characteristics of high efficiency and high frequency, greatly reducing the volume and heating conditions of the charger; in terms of the protocol, it still uses the VOOC flash charging chip customized by Rockchip Micro. There is an isolation design between the primary and secondary inside the charger, and an insulated baffle is installed; a large amount of glue injection is used between the components to fix the components and assist in thermal conduction. From the materials used to workmanship, the entire product reveals OPPO's high requirements for product quality.
main control chip: PI SC1923C
gallium nitride power device: PI SC1923C built-in
synchronous rectifier chip: PI SC1923C built-in
protocol chip: weiquan WT6636F
Editor comment: RAVPower This gallium nitride fast charger gives people the deepest feeling that it is very small, almost one-half of the volume of Apple's 61W fast charger. At the same time, through the test, we learned that in addition to supporting PD fast charging, this charger also supports APPLE2.4A, DCP protocol, QC 2.0, QC 3.0 fast charging protocols, which can be adapted to fast charging of mobile devices such as mobile phones.
charging head network disassembly learned that the internal circuit design of this charger is very simple, which is also due to the use of PI PowiGaN control chip, integrated PWM controller, gallium nitride power MOS, secondary synchronous rectification controller, etc., and the omission of common optocoupler feedback components. The secondary side adopts Hengtaike low-voltage MOS synchronous rectification, while the protocol identification uses Weiquan WT6636F. In addition to the careful use of materials, the internal PCBA of the charger uses a thermal plate design to avoid local overheating of the charger during long-term high-power output, improving the user experience.
nano micro semiconductor
nano micro semiconductor (Navitas) has a strong team of experts in the power semiconductor industry. The proprietary AllGaN process design kit integrates the highest performance GaNFETs with logic and analog circuit monolithics to provide smaller, higher energy-efficient and lower cost power supplies for mobile, consumer, enterprise and new energy markets. The gallium nitride fast charging product released by Xiaomi this time uses Nanomicro Semiconductor's power chip product.
1, Besie 65W 2C1A gallium nitride fast charger
main control chip: ON Semi NCP1342
gallium nitride power device: Nano Micro NV6115
synchronous rectifier chip: MPS MP6908
protocol chip: Zhirong SW3516+SW3510
Editing comments: Bisie this 65W gallium nitride fast charger is smooth, white, side-side transition, small size and easy to carry. All three interfaces support QC2.0/3.0, AFC, FCP and SCP fast charging protocols. Both USB-C ports support USB PD3.0 fast charging standard, and have multiple fixed voltage gears and PPS voltage gears. The maximum output power of a single port is 65W, which can meet the charging needs of most light and light laptops. Even when outputting with dual ports or triple ports, one of the C ports can still maintain an output power of 45W, meeting the application scenarios of simultaneous charging of multiple devices.
Charging Head Network learned through disassembly that this charger has a compact internal structure, ingenious design, and extremely high space utilization. The input filtering uses five electrolytic capacitors, and the output end uses three solid-state capacitors such as Fujian Yunxing Electronics and other brands to filter. In terms of chips, the primary side uses ON Semiconductor NV6115 GaN power chip; the secondary side uses MP6908 and Dongwei MOS for synchronous rectification; the three output interfaces are designed for secondary buck, the USB-C1 interface is controlled by a Zhirong SW3516, and the USB-C2 interface and the USB-A interface share a Zhirong SW3510. Both chips are built-in synchronous buck controllers and protocol identification, supporting intelligent power distribution.
main control chip: ON Semi NCP1342
gallium nitride power device: nano micro NV6115
synchronous rectifier chip: MPS MP6908
protocol chip: Zhirong SW3516+SW3518S
Editing comment: Charging head network learned through disassembly that the overall circuit of this charger adopts switching power supply and two-channel DC-DC architecture, among which the switching power supply part, the primary side uses ON Semi NCP1342 to control nano micro gallium nitride power chip, and the secondary side is MPS MP6908 controls Hengtaike MOS, switch power supply fixed voltage output, charging head network learned through consulting the original chip manufacturer that the fixed voltage is between 21.5V-22V.
Then after DC-DC secondary bucking, it is divided into two outputs, including USB-C1, SW3516 and two Ruijun MOSes to achieve secondary bucking output; in addition, the two interfaces of 1A1C are controlled by SW3518S; the two chips of Zhirong are finally realized intelligent power distribution. In addition, Yubang solid-state capacitor filtering is used to provide pure output. The overall material of the product is solid.
The second is the design aspect. The charger is layout from input to output, the components are welded neatly and compactly. Multiple small PCB boards are used in front and back to make full use of the internal space to reduce the volume. The transformer on the front of the PCB board is filled with silicone around it to increase internal stability and also help heat conduction. A thermal pad is attached to the back to help heat conduct. The outermost layer wraps a large area of metal heat sink, which ensures stability and heat dissipation performance, and is solid in workmanship. Finally, thanks to the use of Zhirong chip, the three output ports of the charger support multiple fast charging protocols such as QC2.0/3.0, AFC, FCP, and SCP, and good compatibility; in addition, the two USB-Cs consistently support five sets of fixed voltage gears, and a set of PPS voltage gears of 5/9/12/15V3A, 20V3.25A, and a set of PPS voltage gears of 3.3-11V/5A. The maximum output is 65W, which supports blind plug-in and use more conveniently, which can meet the daily fast charging needs of most mobile phones and laptops.
main control chip: ON Semi NCP1342
gallium nitride power device: nano micro NV6115+NV6117
synchronous rectifier chip: MPS MP6908
protocol chip: Cypress CYPD3174
Editor's comment: Xiaomi's 65W charger broke through the technical barriers after using gallium nitride power devices and concentrated the volume to 30.8×30.8×56.3mm. Not only does the product's power density reach 1.21W/cm³, but the weight of the charger is also controlled at 82g, truly achieving high power, small volume, lightweight and portable.
has been tested in the charging head network. Xiaomi 65W gallium nitride charger has five fixed voltage levels: 5V/3A, 9V/3A, 12V/3A, 15V/3A, 20V/3.25A, and supports two PPS voltage levels: 5-11V3A/5-20V3.2A. It is also compatible with APPLE2.4A, Samsung AFC, Huawei FCP, QC3.0, etc., with a wide range of support protocols and is compatible with most mobile phones, laptops, mobile power supplies and other products on the market.
charging head network learned through disassembly that the reason why Xiaomi 65W gallium nitride charger can achieve a breakthrough in power density is mainly due to the GaNFast gallium nitride power chips NV6115 and NV6117 with built-in nano-semiconductor, which is paired with ON Semiconductor, high-frequency switching is achieved, thereby greatly reducing the volume of the transformer. At the same time, this charger uses a chip capacitor to further compress the volume. In terms of compatibility, Cypress's solution is used. The performance of CYPD3174 is not the case. In addition to the conventional protocol, it can also achieve 50W fast charging for Xiaomi 10 Pro.In terms of
heat dissipation, the power devices and transformer parts inside the charger have added thermal pad designs, and the entire PCBA module is wrapped with copper plates to dissipate heat evenly. The entire product uses solid materials and fine workmanship, which is a fine product among chargers.
main control chip: ON Semi NCP1342
gallium nitride power device: Nano Micro NV6115
synchronous rectifier chip: MPS MP6908A
protocol chip: Zhirong SW3516+SW3510
Editorial comment: Momis This 2C1A 65W gallium nitride charger is round and compact, and is matched with foldable pins, which is easy to carry. The three ports of 2C1A support QC2.0/3.0, AFC, FCP, and SCP, and have good compatibility; in addition, both C ports support five sets of voltage gears of 5/9/12/15V3A and 20V3.25A and a group of PPS voltage gears of 3.3-21V/3A. The gears are complete and support blind plug-in and easy to use. The maximum output of 65W can meet the daily fast charging needs of most devices such as mobile phones and laptops.
Charging Head Network learned through disassembly that the overall circuit of this charger, Momis, uses a switching power supply constant voltage output, and provides power to two DC-DC step-down. The switching power supply part is composed of ON Semi primary controller with a Nano Micro NV6115 GaN power chip, and MPS MP6908A with China Resources Micro Synchronous Rectification MOS.
then passes through two independent DC-DC channels and then outputs in three ports. USB-C1 and the other 1A1C channels are respectively paired with two Ruijun MOSes to achieve secondary buck control output, and the step-down and power intelligent distribution are achieved through these two chips. In addition, the secondary filtering is used for Yubang and Yunxing solid-state capacitors, and the output is pure. The internal components of the charger are reasonably laid out in a clear level, and are designed with multiple small PCB boards, with extremely high space utilization, and are poured glue injection internally, so the stability and heat dissipation performance of the components are guaranteed.
main control chip: ON Semi NCP1342
gallium nitride power device: Nano Micro NV6115
Synchronous rectifier chip: MPS MP6908A
protocol chip: Zhirong SW3516+SW3515S
Editing comment: RAVPOWER This charger uses a square rounded corner body and is equipped with foldable pins, making it very space-saving and easy to carry. Both ports support multiple fast charging protocols for QC2.0/3.0, AFC, and FCP. Port C also has five sets of fixed voltage gears 5/9/12/15V3A and 20V/3.25A, and are compatible with the protocol and have a complete range of multiple gears. The maximum output of the dual port is 18W and 65W respectively. When the dual port output is output, the A port remains unchanged and the C port is reduced to 45W, which is very suitable for charging two devices at the same time.
charging head network discovered through disassembly that the core power device used by this charger is Nano Micro NV6115 chip, and uses ON Semi high-frequency controller. The secondary consists of the core source MP6908A and Bandai MOS. The DC-DC part uses Zhirong SW3515S and SW3516 controllers. The two ports are independent output, support intelligent power distribution and have high integration. In addition, Aihua and Yongming electrolytic capacitors were used, and the overall materials were solid. The input and output ends of the
charger are equipped with small PCB boards, which make full use of the internal space to reduce the product volume, and the transformer and capacitor are glued and fixed, and the inductor is wrapped in insulating tape. There is an insulating plate isolation between the primary and secondary levels, and the output is filtered by solid-state capacitors. The internal design and layout are reasonable, the components are welded neatly and compactly, and the overall workmanship is the mainstream level in the industry.
main control chip: TI UCC28780
gallium nitride power device: NV6115+NV6117
synchronous rectifier chip: TI UCC24612
protocol chip: Quantit F75183A
Editing comment: ROxANNE USB The PD fast charger supports a maximum power output of 66W and adopts a 1A1C interface design, while the product's volume is 46% lower than that of Apple's original 60W charger, which is entirely due to the application of gallium nitride power devices. In addition to having very obvious size advantages, the USB-C of this charger can also support fast charging protocols such as USB PD, QC2.0, QC3.0, AFC, etc. The USB-A port can also support the APPLE2.4A protocol. Even if it is output simultaneously on dual ports, the USB-C port can achieve a maximum of 46W fast charging, meeting the charger needs of most users.
Charging Head Network learned through disassembly that the internal structure of this charger is relatively complex, and it adopts a combination of multiple PCB boards. The space utilization rate is very high, further improving the power density of the product. In terms of materials, this product uses two nanomicro semiconductors NV6115 and NV6117 GaNFast power chips, highly integrated driving circuits and single-chip designs, which greatly improves the switching frequency of the gallium nitride chip, thereby reducing the volume of the transformer and improving the product efficiency. The secondary part of
adopts a two-channel output design. The USB-C interface adopts Jingtuo Technology F75183A protocol chip to identify fast charging protocols such as PD, QC, AFC, etc. The USB-A interface is 5V output. The Dexin EUP3271 synchronous step-down chip is used to reduce the voltage to 5V, and supports the APPLE2.4A protocol through an intelligent identification IC.
Regarding the heating issue, on the one hand, the gallium nitride power chip is built-in, which has high efficiency and less heat generation. On the other hand, the heat conduction and heat dissipation are assisted by injecting silicone between components and wrapping copper foil around the PCBA module to avoid local overheating.
main control chip: Onseme NCP1342
gallium nitride power device: Nanomic NV6115
synchronous rectifier chip: MPS MP6908
protocol chip: Huinengtai HUSB339
Editing comment: SlimQ 65W gallium nitride fast charger has the characteristics of being small and portable, and compared with conventional 45W chargers, the volume is only half of it. Both 1A1C interfaces can support fast charging output, and can be recharged by laptops or mobile phones. In terms of protocol, it supports USB PD, QC3.0, QC2.0, AFC, FCP, Apple 2.4A and other protocols. It can be used in one machine and is very convenient to carry when you go out.
charge to the head network disassembled and found that the AC-DC part of this product uses nano-semiconductor gallium nitride power chip, ON Semiconductor PWM main control, MPS synchronous rectification controller and Hengtaike synchronous rectification MOS; the USB-C interface output uses Huinengtai HUSB339 protocol chip, and the USB-A interface output is secondary bucked by Nanxin SC8903, and Tianyu FP6601Q is used as the protocol chip. 1A1C two interfaces intelligently output, realizing intelligent power distribution.
In addition, the charger uses a full set of Yongming small-volume capacitors for primary and secondary filtering; at the same time, in order to achieve small-volume heat dissipation problems, a large amount of silicone is injected into the charger, and a metal heat equalization flake is wrapped around the PCBA module to avoid excessive local temperature rise during high power output.
Innoscience
Innoscience As a domestic silicon-based gallium nitride manufacturer, it has attracted the attention of many manufacturers in the context of the current Sino-US trade war, and the industry is very optimistic about its development potential. The company has built two 8-inch silicon-based gallium nitride chip research and development and production bases in Zhuhai and Suzhou. The product line covers a full range of gallium nitride chips with a product line covering 30V-650V. The self-destructive failure analysis and reliability laboratory protects the product quality. At present, more than 10 companies in the field of fast charging have successfully used their high-voltage gallium nitride chips to develop fast charging products and achieve mass production. Although Innosec started late, it has great advantages in core aspects such as business model (IDM), advanced technology, product coverage, and capacity layout, and its future development is worth looking forward to.
1, Meizu 65W 2C1A gallium nitride fast charger
main control chip: ON Semi NCP1342
gallium nitride power device: Innosec INN650D02
synchronous rectifier chip: ON Semi NCP4306
protocol chip: Weiquan WT6636F
Editorial comment: Meizu 65W 2C1A gallium nitride fast charger adopts a pure white shell, flat appearance shape, and a circle smaller than Apple 61W. The input end is a foldable pin for easy storage; the input end is equipped with two USB-C interfaces and one USB-A interface. When working on a single port, all three interfaces can support a maximum output of 65W. It also supports fast charging protocols such as QC3.0, FCP, AFC, PPS, PE2.0, and can meet the charging needs of three devices at the same time.
charging head network was disassembled. Meizu 65W gallium nitride fast charger adopts a switching power supply + DC-DC secondary buck output architecture. The primary side of the switching power supply uses ON Semiconductor GaN nitride chip INN650D02; the secondary side uses ON Semiconductor NCP4306 and Hengtai Ke MOS tube to form a synchronous rectification. The secondary bucking part has three independent outputs, each using a Nanxin SC8002 to achieve bucking output, and is identified by Weiquan WT6636F as the protocol. The internal layout of the charger is compact, and a large amount of glue injection is used between the components. The high-voltage side gallium nitride power device and the secondary step-down circuit both have metal sheets to help dissipate heat. The overall material is exquisite and the workmanship is very solid.
main control chip: ON Semi NCP1342
gallium nitride power device: Innosecko INN650D02
synchronous rectifier chip: MPS MP6908A
protocol chip: Jingtuo F75183A
Editing comment: Lapo 65W gallium nitride fast charger USB-C output interface supports QC2.0/3.0, AFC, FCP fast charger protocol and USB PD3.0 fast charging standard, with 5/9/12/15/20V and PPS voltage gears. It is equipped with multiple charging adapters, which can meet the charging needs of most new and old thin and light laptops. It is multi-purpose and is very practical.
Charging Head Network learned through disassembly that the Lapo 65W USB PD GaN fast charger adopts a typical architecture of a wide range of switching power supplies, and a typical architecture that controls the output voltage. The AC-DC part of the charger is composed of ON Semi NCP1342 with INN650D02 gallium nitride power device, and synchronous rectification controller MP6908A with AOS Bandai MOS; finally, the output is controlled by the Jingtuo USB PD protocol chip F75183A. The
charger has a compact internal structure and uses three additional small PCB boards, which has a high space utilization rate. In addition, small boards and transformers and other components are glued and reinforced, and major heating chips such as rectifier bridges are also glued to help conduct heat, and the internal stability and heat dissipation performance are guaranteed. In addition, Yongming high-voltage electrolytic capacitor and Yunxing low-voltage solid-state capacitor are used for filtering, and the materials are solid.
main control chip: ON Semi NCP1342
gallium nitride power device: Innosec INN650D02
synchronous rectifier chip: ON Semi NCP4306
protocol chip: Zhirong SW3516×2
Editorial comment: ROCK Locke's 65W gallium nitride charger body is smooth, white, side-side transition is round, small in size and easy to carry. The 2C1A interfaces all support QC2.0/3.0, AFC, FCP and SCP fast charging protocols, and have good compatibility. The two C ports also have multiple fixed voltage gears and PPS voltage gears with 5/9/12/15/20V, with complete gears. The maximum output power of C1 port 65W can meet the charging needs of most light and light laptops. Even when outputting multiple ports, it can still maintain an output power of 45W, meeting the simultaneous charging of multiple devices.
Charging Head Network discovered through disassembly that the core device of this charger is Innosecko's INN650D02 gallium nitride power switch tube. The high-frequency switch achieves high efficiency and low heat generation, which helps to achieve the small volume of the product. The AC-DC part adopts the full set of Onseme controllers and a constant voltage output. The DC-DC part is paired with two Zhirong SW3516 controllers, which supports intelligent power distribution and high integration. The internal design and layout of the
charger is reasonable, the components are welded neatly and compactly, the input filtering uses four electrolytic capacitors, and the output end uses three solid-state capacitors filtering of Fujian Yunxing Electronics. The silicone is reinforced between the components to enhance internal stability.
Charging Head Network Summary
Among the above 16 popular 65W gallium nitride chargers on the market, foldable pins, fixed pins; single port, double port, three port; square appearance, lipstick appearance, etc., are all involved. The product types are very rich, enough to fully meet consumers' demand for 65W gallium nitride chargers. Through the disassembly of 16 65W gallium nitride chargers, we can see that the three major gallium nitride chip manufacturers in the consumer power field have achieved mass production and shipments, and each has been recognized by well-known mobile phone brand manufacturers, becoming winners in the gallium nitride fast charging industry chain.According to a previous report by Charging Head Network, in addition to these three original gallium nitride chip manufacturers, there is also a protocol chip manufacturer that has also become the winner.
believes that by the end of 2020, the number of 65W gallium nitride chargers on the market will increase several times. I will share it with you later.
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