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
- EcoSmart� 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
Warnings Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.
Other details
Brand |
POWER INTEGRATIONS |
Part Number |
CAP300DG-TL |
Quantity |
Each (Supplied on Cut Tape) |
Technical Data Sheet EN |
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Product Change Notice EN |
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