Shenzhen CXW Technology., Co Ltd
15 years of experience
Overview:
CX7601 is a high-performance synchronous rectification control circuit for the secondary side of a switching power supply. In low voltage and high current switching power supply applications, it easily meets 6-level energy efficiency and is an ideal solution for ultra-low conduction voltage drop rectification devices.
CX760 chip can support switching frequency applications up to 150kHz, as well as switching power supply operating mode applications such as CCM/QR/DCM. Its extremely low conduction voltage drop generates much less loss than the conduction loss of Schottky diodes, greatly improving the conversion efficiency of the system and significantly reducing the temperature of rectifier devices.
CX7601 high current totem pole drive output with voltage clamping can be directly used to drive external MOSFET devices, up to 1A peak current. The drive capability can ensure that external high current MOSFET devices can be quickly turned on and off, obtaining excellent conversion efficiency; The output voltage clamping function ensures that the gate is still safe and reliable under high supply voltage.
The highly integrated circuit design makes the peripheral circuits of the chip extremely simple, and a complete switching power supply output synchronous rectification application can be constructed with only one MOSFET.
Features:
Supporting switch mode power supply CCM/QR/DCM mode
High current ultra fast totem pole output drive circuit
Output peak driving current capacity up to 1A
Built-in high-voltage isolation switch with a withstand voltage of up to 150V
When there is no switch, the static working current can be as low as 600uA
Support switching power supply frequency up to 150kHz
At the minimum, there is only one MOS switch on the periphery
Packaging: SOT23-6
Application:
PD, QC fast charging power supply
Multi port USB charger
Low voltage high current switching power supply
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&#039;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.
Overview
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