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  • 型 号 :

    CX7527X

  • 待机功耗 :

    ＜75mW

  • 工作模式 :

    SSR

  • 控制方式 :

    Built in super silicon, constant power

  • 应 用 :

    Full voltage ≤ 25W power adapter, PD, QC charger

  • 封 装 :

    SOP-8
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Summary:

CX7527X is a high-performance multi-mode PWM flyback controller, which facilitates users to design high-performance AC/DC conversion switching power supplies with fewer peripheral components and lower system costs.

CX7527X 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.

CX7527X 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 operating frequency of the chip decreases, effectively reducing switch losses. When the load is in extremely light or no-load conditions, the chip is in interval mode.

CX7527X 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.

CX7527X provides a good design platform for cost-effective flyback switching power supply systems that require ultra-low standby power consumption.

Characteristic:

  • Standby power consumption less than 75mW at full voltage range (90Vac-265Vac) input

  • Built in soft start function

  • Built in line voltage compensation (OCP)

  • Intelligent dithering technology for improving electromagnetic interference

  • Full load fixed 65KHz switch frequency

  • Built in synchronous slope compensation

  • Ultra low starting current

  • High noise and anti-interference ability

  • Multi mode control

  • Accurate overload protection function

  • Cycle by cycle overcurrent protection function

  • VDD overvoltage protection, undervoltage lockout protection (UVLO)

  • No audio noise

Application:

  • Switched AC-DC power supply

  • PC peripheral power supply equipment

  • Intelligent small household appliances

  • Laptop auxiliary power supply

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