Shenzhen CXW Technology., Co Ltd
15 years of experience
Summary:
CX2965AC is a multifunctional USB dual port controller that integrates USB Type-C, USB Power Delivery (PD) 3.0/2.0, PPS, QC3.0/2.0Class B fast charging protocol, Huawei FCP/SCP fast charging protocol, Samsung AFC fast charging protocol, BC1.2 DCP, and Apple device 2.4A charging specification. It provides a complete Type-C and Type-A dual port charging solution for devices such as AC-DC adapters, mobile power supplies, and car chargers.
CX2965AC specifically integrates LINK ™ Patented technology for internet communication. Through LINK ™ Interconnection function,
CX2965AC can be easily and flexibly applied in charging schemes with multiple Type-C and Type-A ports.
The built-in TYPE-C protocol of CX2965AC can support the insertion of TYPE-C devices into the automatic wake-up system, intelligently recognize the forward and reverse insertion of plugs, and achieve connection. The integrated TYPE-C PD3.0 protocol supports Bidirectional Markup Coding (BMC), integrates hardware's physical layer protocol and protocol engine, and does not require software to participate in encoding and decoding. When one of the Type-C and Type-A ports is connected to the device, both Type-C and Type-A ports can achieve independent fast charging function.
When both Type-C and Type-A are connected to the device, the output voltage will be reduced to 5V to supply power to the device. Specifically, when the Type-A port is continuously connected to the Apple charging cable but not connected to the Apple phone, the Type-C port still has a fast charging function. When used as a charger, the charging cable is often connected to the charger. Perfect solution to the fast charging problem when Type-A and Type-C ports are connected to charging cable applications. In addition, the Type-A port has a low cutoff current threshold of 10mA when fully charged, which can support small current charging of intelligent wearable devices.
CX2965AC achieves dynamic voltage regulation through a Sink/Source current source connected to the feedback pins of AC-DC or DC-DC. It has a soft start/voltage regulation function during both startup and voltage regulation processes, achieving smooth voltage transition.
CX2965AC has multiple built-in protection mechanisms to ensure equipment safety, including dynamic overvoltage/undervoltage/overcurrent protection (the protection point can be adjusted proportionally based on the operating voltage/current requested by the equipment); Start monitoring (before VBUS output, it will monitor whether the port voltage is in a safe state).
Integrating a 10m Ω VBUS channel power switch and an internal discharge channel saves peripheral devices, allowing for quick shutdown of the output and restoration to a safe state in the event of an error.
CX2965AC is packaged in TSSOP-20 and QFN4x4-20. The peripheral circuit in the application is very simple
CX7539F is a high-performance synchronous rectification control circuit for the secondary side of switching power supply. In the application of low-voltage and high-current switching power supply, it can easily meet the energy efficiency of class 6, and is an ideal solution for ultra-low conduction voltage drop rectifier devices. The chip can support switching frequency applications as high as 150kHz, as well as switching power mode applications such as CCM/QR/DCM. The loss caused by its extremely low turn-on voltage drop is far less than the turn-on loss of Schottky diode, which greatly improves the conversion efficiency of the system and greatly reduces the temperature of the rectifier device.<br/><br/>CX7539F is a synchronous rectifier switch with built-in high voltage NMOSFET, and it has extremely low internal resistance, which can provide the application output of the system up to 5 years. IC determines the switching state of integrated MOSFET by detecting its source-drain voltage, which is compatible with flyback converters in continuous mode, discontinuous mode and quasi-resonant mode.<br/><br/>CX7539F adopts special self-power supply technology, which can ensure that the chip will not work under voltage in both constant current and constant voltage working states of the primary control system.
CX7538BS is a high-performance secondary side synchronous rectification control circuit for switch-mode power <br/><br/>supplies. It easily meets the Level VI energy efficiency requirements in low-voltage, high-current switch-mode power <br/><br/>supply applications, making it an ideal solution for ultra-low forward voltage drop rectification devices. It also supports <br/><br/>various operating modes of switch-mode power supplies, such as CCM, QR , and DCM . Its extremely low forward <br/><br/>voltage drop results in much less conduction loss compared to Schottky diodes, greatly improving the system's <br/><br/>conversion efficiency and significantly reducing the temperature of the rectification device.<br/><br/><br/><br/>The CX7538BS chip features an NMOSFET synchronous rectification switch with a built-in voltage tolerance of 60V <br/><br/>and an extremely low internal resistance, with a typical RdsON as low as 12mΩ, providing the system with an output <br/><br/>capability up to 4A. The chip determines its switching state by detecting the source-drain voltage of the built-in <br/><br/>MOSFET, making it compatible with flyback converters in continuous mode, discontinuous mode, and quasi-resonant <br/><br/>operation modes.
80V输入，1.5A输出，异步降压转换器&amp;amp;amp;amp;amp;lt;br/&amp;amp;amp;amp;amp;gt;概述：&amp;amp;amp;amp;amp;lt;br/&amp;amp;amp;amp;amp;gt;CX8803是一款输入电压达9V至80V的高电压非同步降压转换器。&amp;amp;amp;amp;amp;lt;br/&amp;amp;amp;amp;amp;gt;CX8803集成了一个100V400-mΩ的高压侧MOSFET。&amp;amp;amp;amp;amp;lt;br/&amp;amp;amp;amp;amp;gt;CX8803可提供1.5A的连续负载电流，效率高达95%。&amp;amp;amp;amp;amp;lt;br/&amp;amp;amp;amp;amp;gt;CX8803采用内置补偿的固定频率峰值电流控制，无需使用外部元件。&amp;amp;amp;amp;amp;lt;br/&amp;amp;amp;amp;amp;gt;高端MOSFET的逐周期电流限制可在过载情况下保护转换器。&amp;amp;amp;amp;amp;lt;br/&amp;amp;amp;amp;amp;gt;如果过电流状况持续时间超过目前的时间，就会触发打嗝模式保护。&amp;amp;amp;amp;amp;lt;br/&amp;amp;amp;amp;amp;gt;CX8803...
CX8836是一款具有宽输入电压：DC4.5V-40V,宽输出电压：DC3V-25V 的四开关同步升降压控制芯片;<br/><br/>CX8836在降压和升压操作模式下均采用电流模式控制，以实现卓越的负载调整能力。<br/><br/>CX8836支持频率可调，软启动可调。<br/><br/>CX8836内置多种保护功能，包括逐周期限流、输入欠压锁定（UVLO）、输出过电压保护（OVP）和过温保护等保证在不同使用环境下产品安全。
概述:&amp;lt;br/&amp;gt;CX75GD080S是一款集成高压GaNFET功率器件高频高性能准谐振式交直流转换功率开关，应用于27W内高性能、低待机功率、低成本、高效率的隔离型反激式开关电源。&amp;lt;br/&amp;gt;CX75GD080S的工作频率最高可达200KHZ，可全范围工作在准谐振模式，在轻载时则会工作于burst模式以提升效率, 将23kHz以下的音调能量降至最低，并在操作过程中消除音频噪声.&amp;lt;br/&amp;gt;CX75GD080S集成了完备的保护功能，包括：Vcc欠压保护（UVLO）,Vcc过压保护（Vcc_OVP）,输入欠压保护...
A single chip of CX8831CB integrates the synchronous buck DC-DC+ fast charging protocol, which minimizes
the number of components outside the chip, effectively optimizes the BOM cost of the scheme, and provides
customers with a DC...
概述：&lt;br/&gt;CX75GD025E是一款集成高压GaNFET功率器件高频高性能准谐振式交直流转换功率开关，应用于45W内高性能、低待机功率、低成本、高效率的隔离型反激式开关电源。&lt;br/&gt;CX75GD025E的工作频率最高可达200KHZ，可全范围工作在准谐振模式，在轻载时则会工作于burst模式以提升效率, 将23kHz以下的音调能量降至最低，并在操作过程中消除音频噪声。&lt;br/&gt;CX75GD025E集成了完备的保护功能，包括：Vcc欠压保护（UVLO）,Vcc过压保护（Vcc_OVP）,输入欠压保护...
CX75GD015E is a high-frequency and high-performance quasi-resonant AC-DC conversion power switch with integrated high-voltage GaNFET power device, which is applied to isolated flyback switching power supply with high performance, low standby power, low cost and high efficiency within 65W.<br/><br/>The working frequency of CX75GD015E can reach 200KHZ at most, and it can work in quasi-resonant mode in the whole range. Under light load, it will work in burst mode to improve efficiency, minimize the tone energy below 23kHz, and eliminate audio noise during operation.<br/><br/>CX75GD015E integrates complete protection functions, including: Vcc undervoltage protection (UVLO),Vcc overvoltage protection (Vcc_OVP), input undervoltage protection (Brown in), input overvoltage protection (Brown out), output overvoltage protection (VO_OVP), FB open and short circuit protection, secondary side SR short circuit protection, CS open and short circuit protection, etc.<br/><br/>CX75GD015E provides excellent electromagnetic interference performance, and provides a good design platform for a cost-effective flyback switching power supply system that requires ultra-low standby power consumption
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