Power Integrations - Energy Saving Solutions Guide

CAPZero™-2 Automatic X Capacitor Discharge IC

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 – 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
• >4 mm creepage on package and PCB
• Self supplied – no external bias required
• High common mode surge immunity – no external ground connection
• High differential surge withstand – 1000 V internal MOSFETs
• Single part for all applications and power ranges
• CB and NEMKO certification

SENZero™ High-Voltage Sense Signal Disconnect IC

Features:

• Eliminates significant standby losses
– Disconnects unnecessary circuit blocks during standby, remote-off, or light-load
conditions
• Ultra-low leakage (maximum 1 mA) 650 V MOSFETs
  –
• Single component provides remote disconnect functionality
  – No external components or additional bias supply needed for remote-off
  – Integrates multiple disconnect MOSFETs, gate drive, and protection
  – Minimal component count provides higher reliability
• Green package technology
  – RoHS compliant and halogen free