Summary:
CX7530 is a high-performance multi-mode PWM flyback controller. This product facilitates users to design high-performance AC/DC conversion switching power supplies with fewer peripheral components and lower system costs.
CX7530 provides extremely comprehensive and high-performance intelligent protection functions, including cycle by cycle overcurrent protection, overload protection, soft start, chip over temperature protection, VDD undervoltage locking protection, and VDD overvoltage locking protection.
CX7530 chip has the function of automatically identifying load size and adjusting working mode. Under full or heavy load conditions, the chip operates at a fixed frequency of 65KHz. When the load is reduced, the chip's operating frequency decreases, effectively reducing switch losses. When the load is under extremely light or empty load conditions, the chip is in interval mode.
CX7530 is equipped with intelligent frequency jitter technology, which not only reduces the electromagnetic interference generated by the system in frequency reduction mode, but also effectively reduces output ripple The unique working mode of the chip minimizes audio energy and eliminates audio noise.
CX7530 adopts SOP-8L packaging, providing a good design platform for high cost performance flyback switching power supply systems that require ultra-low standby power consumption.
Features:
Built-in soft start function
Built-in line voltage compensation (OCP)
Built in slope compensation
Intelligent dithering technology for improving electromagnetic interference
Ultra low starting current
High noise and anti-interference ability
Multi mode control
Built-in 650V ultra silicon MOS
Accurate overload protection function
Full load fixed 65KHZ frequency
Cycle by cycle overcurrent protection function
VDD overvoltage protection function
Under voltage lockout protection function (UVLO)
No audio noise
Application:
Switching ACDC power supply
Laptop adapter
PC peripheral power supply equipment
Intelligent small household appliances