X 电容自动放电芯片, CAP300DG替代型号推荐 ME8701.
ME8701
ME8701.pdf
ME8701.pdfFEATURES
• 内置 1000V MOSFET
• AC 电压接入后阻止 X 电容放电
• AC 电压断电后通过放电电阻对 X 电容放电
• 功率损耗<5mW@230VAC
• X 电容容值灵活调节，简化 EMI 滤波电路设计
• 自供电，无需外部偏置
• 两端子结构，满足安规标准
• 内部限制最大放电电流
PIN CONFIGUTION
优势替代
FEATURES
• Provides lossless ZC (Zero Crossing) signal to system MCU
• Meets IEC 60335 X capacitor discharge of <34 V in <1 sec
• One part to cover X capacitor values up to 6 mF
• Blocks current through X capacitor discharge resistors when
AC voltage is connected
• Automatically discharges X capacitors through discharge
resistors when AC is disconnected
• Simplifies EMI filter design – larger X capacitor allows smaller
inductive components with no change in consumption
• Only two terminals – meets safety standards for use before
or after system input fuse
• >4 mm creepage on package and PCB
• Self supplied – no external bias required
• High common mode surge immunity – no external ground
connection
• High differential surge withstand – 1000 V internal MOSFETs
• NEMKO and CB certification
PIN CONFIGUTION
