FAN9611MX

PFC，Fairchild Semiconductor### 功率因数矫正 PFC，Fairchild SemiconductorPFC 控制器解决方案包括连续传导模式 CCM、临界的/临界导电模式 CrCM/BCM、交错式 PFC 控制器、及 PFC 和 PWM 组合控制器。 所有控制器提供软启动、过压保护、开口反馈保护、过电流保护、输入电压缺乏保护、欠压闭锁保护的集成保护功能。

Description

The FAN9611/12 family of interleaved dual Boundary Conduction-Mode BCM Power-Factor-Correction PFC

controllers operate two parallel-connected boost power trains 180° out of phase.Interleaving extends the

maximum practical power level of the control technique from about 300W to greater than 800W.

Features

  Sync-Lock™ Interleaving Technology for 180° Out-of-Phase Synchronization Under All Conditions

  Automatic Phase Disable at Light Load

  Dead-Phase Detect Protection

  2.0A Sink, 1.0A Source, High-Current Gate Drivers

  High Power Factor, Low Total Harmonic Distortion

  Voltage-Mode Control with VIN2 Feedforward

  Closed-Loop Soft-Start with User-Programmable Soft-Start Time for Reduced Overshoot

  Minimum Restart Frequency to Avoid Audible Noise

  Maximum Switching Frequency Clamp

  Brownout Protection with Soft Recovery

  Non-Latching OVP on FB Pin and Latching Second Level Protection on OVP Pin

  Open-Feedback Protection

  Power-Limit and Current Protection for Each Phase

  Low Startup Current of 80µA Typical

  Works with DC and 50Hz to 400Hz AC Inputs

Applications

  100-1000W AC-DC Power Supplies

  Large Screen LCD-TV, PDP-TV, RP-TV Power

  High-Efficiency Desktop and Server Power Supplies

  Networking and Telecom Power Supplies

  Solar Micro Inverters