Shenzhen CXW Technology., Co Ltd
15 years of experience
Summary:
CX7503X series product is a high-performance multi-mode primary control switching power supply chip with built-in high-voltage MOS power switches. This product designs high-performance AC/DC conversion switching power supplies with fewer peripheral components and low system costs.
CX7503X series products provide extremely comprehensive and high-performance intelligent protection functions, including cycle by cycle overcurrent protection, soft start, chip over temperature protection, output overvoltage protection, VDD undervoltage locking protection, and VDD overvoltage locking protection.
CX7503X series products provide precise constant voltage, constant current (CV/CC) output without the need for optocouplers, secondary control circuits, and loop compensation circuits, while maintaining good stability, excellent output voltage regulation ability, high average efficiency, and standby power consumption of less than 75mW.
CX7503X series products have an output line loss compensation function, which is adjusted by adjusting the Fb voltage divider resistance value. In addition, the unique PWM/PFM operating mode of the chip minimizes audio energy and eliminates audio noise throughout the entire load.
CX7503X series products are packaged in SOP-8, providing a good design platform for high cost performance flyback switching power supply systems with ultra-low standby power consumption, meeting the application of Level 6 energy efficiency and the European energy-saving standard Eur2.0.
Features:
Built-in high-voltage MOSFET power switch tube
Built-in output line loss voltage compensation
Built in original edge sensitivity compensation
High precision constant voltage and current output
Original edge control mode
Built in leading edge blanking function
Multi mode control (PWM+PFM)
Low starting current
VDD overvoltage protection,
VDD undervoltage locking function (UVLO)
Output overvoltage protection
Over temperature protection
Application:
Charger
Power adapter
Set-top box power supply
Auxiliary power supply
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