Power Integrations CAP004DG-TL

Description
CAPZero is an automatic X capacitor discharge IC that blocks current through X capacitor discharge resistors when AC voltage is connected. It automatically discharges X capacitors through discharge resistors when AC is disconnected. This simplifies EMI filter design, allowing for larger X capacitors and smaller inductive components without changing consumption. CAPZero has only two terminals, meeting safety standards for use before or after the system input fuse. It has high common mode surge immunity, no external ground connection, and high differential surge withstand with 1000 V internal MOSFETs. CAPZero is self-supplied, requiring no external bias.

Features
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
Only two terminals
Meets safety standards for use before or after system input fuse
High common mode surge immunity
High differential surge withstand
Self-supplied

Applications
All ACDC converters with X capacitors >100 nF
Appliances requiring EuP Lot 6 compliance
Adapters requiring ultra low no-load consumption
All converters requiring very low standby power