CAP004DG

Specialized ICS Overview

The CAP004DG is a specialized PMIC from the CapZero family designed for zero-loss automatic X capacitor discharge. It blocks current flow in safety discharge resistors during AC operation, reducing standby power loss to less than 5 mW at 230 VAC. Upon AC disconnection, it automatically connects internal series resistors to discharge the X capacitor. The device features an 825 V breakdown voltage and supports total X capacitance up to 1 mF with a total series resistance of 780 kW. It operates within an ambient temperature range of -10 °C to 105 °C.

Specialized ICS Feature Summary

• Zero-loss automatic X capacitor discharge reduces standby power consumption below 5 mW
• Self-supplied operation requiring no external bias voltage
• High common mode surge immunity without external ground connection
• 1000 V differential surge withstand capability via internal MOSFETs

Specialized ICS Applications

• Appliances requiring EuP Lot 6 compliance
• Adapters requiring ultra low no-load consumption
• Converters requiring very low standby power

Specialized ICS Procurement Notes

Verify package configuration upon ordering. The base model suffix 'DG' indicates a standard tube package. For tape and reel packaging, the suffix must be changed to 'TL'. Confirm that the specific order matches the required physical packaging format for the assembly line.

Specialized ICS Selection Notes

Select the CAP004DG for applications utilizing X capacitors up to 1 mF. Ensure the system MOV placement allows for the 825 V rating; if the MOV is not directly across the X capacitor or higher surge margins are needed, consider the 1000 V grade variants such as the CAP014DG instead.

Specialized ICS Part Context

This component belongs to the CapZero family of ICs manufactured by Power Integrations. The family provides two voltage grades: 825 V (CAP00x) and 1000 V (CAP01x). The CAP004DG specifically addresses designs needing support for larger X capacitors while maintaining strict standby power limits.

Specialized ICS Replacement Considerations

For higher surge requirements or different MOV placements, the CAP014DG serves as the 1000 V equivalent within the same capacitance class.