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  • 型 号 :

    CX716

  • 待机功耗 :

    ＜75mW

  • 工作模式 :

    DCM&CCM

  • 控制方式 :

    External Drive Sic

  • 应 用 :

    (Supports Primary Side CC) Adapter, POE, LED Power Supply

  • 封 装 :

    SOT23-6
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Overview

CX716 is a high‑performance PWM controller designed for off‑line flyback power supplies.

CX716 integrates universal primary‑side constant‑current control technology. It supports both discontinuous conduction mode and continuous conduction mode, and is suitable for isolated power supply applications with constant‑current output.

CX716 incorporates a high‑precision internal oscillator with 100 kHz switching frequency, and features frequency‑jittering to optimize EMI performance. The IC operates in green energy‑saving mode and hiccup mode, achieving standby power consumption below 75 mW.

CX716 is equipped with a comprehensive set of protection functions, including VDD under‑voltage lockout (UVLO), VDD over‑voltage protection (OVP), cycle‑by‑cycle current limiting, short‑circuit protection (SCP), overload protection (OLP), over‑temperature protection, soft‑start, VDD clamping, and CS‑pin open‑circuit protection.

CX716 is available in SOT23‑6 package.


Features

● Primary‑side constant‑current technology supporting discontinuous conduction mode and continuous conduction mode 

● Constant‑current accuracy: ±5%; Constant‑voltage accuracy: ±1% 

● Standby power consumption ＜75 mW 

● Fixed 100 kHz switching frequency 

● Green power‑saving mode and hiccup mode 

● Ultra‑low start‑up and operating current 

● Integrated frequency‑jittering for EMI optimization 

● Current‑mode control with built‑in slope compensation 

● Constant‑current technology with line‑voltage and inductance compensation 

● Auto‑recovery protection functions integrated:
 

  ‑ VDD under‑voltage lockout (UVLO)
 

  ‑ VDD over‑voltage protection (OVP)
 

  ‑ Over‑temperature protection (OTP)
 

  ‑ Cycle‑by‑cycle current limiting
 

  ‑ Overload protection (OLP)
 

  ‑ Short‑circuit protection (SCP)
 

  ‑ Leading‑edge blanking (LEB)
 

  ‑ CS‑pin open‑circuit protection


Applications

● Chargers and adapters 

● Power supplies for motor drives



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