厂商：Freescale
类别：16位单片机
厂商：Panasonic
类别：PhotoMOS(MOSFET输出光电耦合器)
厂商：Linear
类别：电流反馈放大器
厂商：
类别：保险丝座及配件
厂商：Skyworks
类别：MIS 硅芯片电容器
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特点Standard 8-Pin PackagesHigh Power Factor Over Wide Load Range with Line Current AveragingInternational Operation Without SwitchesInstantaneous Overvoltage ProtectionMinimal Line Current Dead ZoneTypical 250μA Start-Up Supply CurrentRejects Line Switching NoiseSynchronization CapabilityLow Quiescent Current: 9mAFast 1.5A Peak Current Gate Driver典型应用描述The LT1249 uses a multiplier containing a square gain function from the voltage amplifier to reduce the AC gain at light output load and thus maintains low line current distortion and high system stability. The LT1249 also provides filtering capability to reject line switching noise which can cause instability when fed into the multiplier. Line current dead zone is minimized with low bias voltage at the current input to the multiplier.The LT1249 provides many protection features including peak current limiting and overvoltage protection. The switching frequency is internally set at 100kHz.While the LT1249 simplifies PFC design with minimal parts count, the LT1248 provides flexibilities in switching frequency, overvoltage and current limit.