目录

1. 1.产品概述    2.产品特点     DnG嘉泰姆

2. 3.应用范围    4.技术规格书下载（PDF文档）DnG嘉泰姆

3. 5.产品封装    6.电路原理图  DnG嘉泰姆

     7.相关产品DnG嘉泰姆

产品概述                                             返回TOP

  CXAC8513 is a highly integrated current mode PWM control IC optimized for high performance, low standby power and cost effective offline flyback converter applications. PWM switching frequency at normal operation is externally programmable and trimmed to tight range. At no load or light load condition, the IC operates in extended ‘burst mode’ to minimize switching loss. Lower standby power and higher conversion efficiency is thus achieved.VDD low startup current and low operating current contribute to a reliable power on startup design with CXAC8513. A large value resistor could thus be used in the startup circuit to minimize the standby power. The internal slope compensation improves system large signal stability and reduces the possible subharmonic oscillation at high PWM duty cycle output. Leading-edge blanking on current sense input removes the signal glitch due to snubber circuit diode reverse recovery and thus greatly reduces the external component count and system cost in the design. CXAC8513offers complete protection coverage with automatic self-recovery feature including Cycle-by-Cycle current limiting (OCP), over load protection (OLP), VDD over voltage clamp and under voltage lockout (UVLO). The Gate-drive output is clamped at 16V to protect the power MOSFET. In JCXAC8513OCP threshold slope is internally optimized to reach constant output power limit over universal AC input range. Excellent EMI performance is achieved with frequency shuffling technique together with soft switching control at the totem pole gate drive output. Tone energy at below 20KHZ is minimized in the design and audio noise is eliminated during operation.

产品特点     返回TOP

●Extended Burst Mode Control For Improved Efficiency and Minimum Standby Power Design 

●Audio Noise Free Operation DnG嘉泰姆

●External Programmable PWM Switching Frequency DnG嘉泰姆

●Internal Synchronized Slope Compensation DnG嘉泰姆

●Low VDD Startup Current (3μA) and Low Operating Current (1.8mA) DnG嘉泰姆

★External programmable over temperature protection (OTP) DnG嘉泰姆

★With or without On-chip VDD OVP for system OVP DnG嘉泰姆

★Under Voltage Lockout with Hysteresis (UVLO) DnG嘉泰姆

★Gate Output Maximum Voltage Clamp (16V) DnG嘉泰姆

★ Line Input Compensated Cycle-by-Cycle Over-current Threshold Setting        DnG嘉泰姆
For Constant Output current Limiting Over Universal Input Voltage   Range(OCP). DnG嘉泰姆

★Over load Protection (OLP) DnG嘉泰姆

● Available in SOP8 and DIP8 packageDnG嘉泰姆

应用范围                                       返回TOP

     Offline AC/DC flyback converter for

  Battery ChargerDnG嘉泰姆

  PC/TV/Set-Top Box Power SuppliesDnG嘉泰姆

  Laptop Power AdaptorDnG嘉泰姆

  Open-frame SMPSDnG嘉泰姆

要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！DnG嘉泰姆

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产品封装图                                               返回TOP

电路原理图                                               返回TOP

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