CAP200DG CAPZero-2 1 Zero Loss Automatic X Capacitor Discharge IC Product Highlights One part to cover X capacitor values from 100 nF to 6 mF R1 Blocks current through X capacitor discharge resistors when AC voltage is connected D1 Automatically discharges X capacitors through discharge resistors when AC is disconnected MOV and Other Simplifies EMI filter design larger X capacitor allows smaller AC X Capacitor EMI Filter inductive components with no change in consumption Components Only two terminals meets safety standards for use before or after system input fuse D2 >4 mm creepage on package and PCB CAP200DG Self supplied no external bias required R2 High common mode surge immunity no external ground connection PI-7507-012015 High differential surge withstand 1000 V internal MOSFETs NEMKO and CB certification Figure 1. Typical Application Not a Simplified Circuit. EcoSmart Energy Efficient <5 mW consumption at 230 VAC for all X capacitor values Applications Component Table All AC-DC converters with X capacitors of 100 nF up to 6 mF Appliances requiring EuP Lot 6 compliance Total Series Total 3 2 Product BV Resistance Adapters requiring ultra low no-load consumption DSS X Capacitance (R1 + R2) All converters requiring very low standby power Lossless generation of zero crossing signal CAP200DG 1000 V 100 nF to 6 mF 7.5 MW to 142 kW Description Table 1. Component Table. When AC voltage is applied, CAP200DG blocks current flow in the Notes: 1. IEC 62301 clause 4.5 rounds standby power use below 5 mW to zero. X capacitor safety discharge resistors, reducing the power loss to less 2. Values are nominal. RC time constant is <1 second. 1 than 5 mW, or essentially zero at 230 VAC. When AC voltage is 3. Packages: D: SO-8. disconnected, CAP200DG automatically discharges the X capacitor by connecting the series discharge resistors. This operation allows total flexibility in the choice of the X capacitor to optimize differential mode EMI filtering and reduce inductor costs, with no change in power consumption. Designing with CAP200DG is simply a matter of selecting the appropri- ate external resistor values for the X capacitor value being used to achieve the necessary time constant. The simplicity and ruggedness of the two terminal CAP200DG IC makes it an ideal choice in systems designed to meet EuP Lot 6 requirements. Figure 2. SO-8 D Package. www.power.com May 2015 This Product is Covered by Patents and/or Pending Patent Applications.CAP200DG Pin Functional Description Key Application Considerations The pin configuration of Figure 3 ensures that the width of the SO-8 Breakdown Voltage Selection package is used to provide creepage and clearance distance of over The system configuration variables include the placement of the 4 mm. system MOV and X capacitor(s) as well as the differential surge voltage specifications of the application. Although electrical connections are only made to pins 2, 3, 6 and 7, it is recommended that pins 1-4 and pins 5-8 are coupled together on As shown in Table 1, the CAP200DG has a breakdown voltage of the PCB see Applications Section. 1000 V. For applications where the system MOV is placed in position 1 (MOV in Figure 4), the CAP200DG will provide adequate voltage POS1 withstand for surge requirements of 3 kV or higher. For MOV placement that is not directly across the X Capacitor1 (for example MOV in Figure 4) the 1000 V CAP200DG devices can be POS2 used up to a surge specification of 1.5 kV. For differential surge D Package (SO-8) voltage specifications of >1.5 kV it is recommended that the MOV 1 8 is always placed in the location shown in Figure 4 as MOV . POS1 NC NC 2 7 It is always recommended that the peak voltage between terminals D1 D2 D1 and D2 of CAP200DG is measured during surge tests in the final 3 6 system. Measurements of peak voltage across CAP200DG during D1 D2 4 5 surge tests should be made with oscilloscope probes having appropri- NC NC ate voltage rating and using an isolated supply to the oscilloscope to avoid ground currents influencing measurement results. When making such measurements, it is recommended that 50 V engineer- ing margin is allowed below the breakdown voltage specification PI-5608-020515 (for example 950 V with the 1000 V CAP200DG). Figure 3. Pin Configuration. R1 D1 MOV MOV POS1 POS2 Other EMI C EXT AC Filter Components X Capacitor1 X Capacitor2 D2 CAP200DG R2 PI-7508-012015 Figure 4. Placement Options of MOV and C . EXT 2 Rev. B 05/15 www.power.com