CAP300DG-TL

When AC voltage is applied, CAP300DG blocks current flow in X capacitor safety discharge resistors, reducing power loss to less than 5mW or essentially zero at 230VAC. When AC voltage is disconnected, it automatically discharges X capacitor by connecting series discharge resistors. This allows total flexibility in choice of X capacitor to optimize differential mode EMI filtering and reduce inductor costs with no change in power consumption. Designing with CAP300DG is simply a matter of selecting appropriate external resistor values for X capacitor value being used to achieve necessary time constant. Simplicity and ruggedness of two terminal CAP300DG IC makes it an ideal choice in systems designed to meet ErP Lot 6 requirements. Used in all AC-DC converters with X capacitors of 100nF up to 6µF, appliances requiring ErP Lot 6 compliance, adapters requiring ultra-low no-load consumption, all converters requiring very low standby power and lossless generation of zero crossing signal.

• 1000V BVDSS, 200nF to 6µF total X capacitance, 54Kohm minimum total series resistance (R1 + R2)
• Zero loss automatic X capacitor rapid discharge IC
• EcoSmartâ„¢ energy efficient, 5mW consumption at 230VAC for all X capacitor values
• Meets IEC 60335 X capacitor discharge of 34V in 1sec, 1 part to cover X capacitor value up to 6µF
• Blocks current through X capacitor discharge resistors when AC voltage is connected
• Automatically discharges X capacitors through discharge resistors when AC is disconnected
• 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
• 4mm creepage on package and PCB, self supplied, no external bias required
• NEMKO and CB certification