
Philips Electronics
GENERAL DESCRIPTION
The GreenChip™II is the second generation of green Switched Mode Power Supply (SMPS) control ICs operating directly from the rectified universal mains. A high level of integration leads to a cost effective power supply with a very low number of external components.
FEATURES
Distinctive features
• Universal mains supply operation (70 to 276 V AC)
• High level of integration, giving a very low external component count.
Green features
• Valley or zero voltage switching for minimum switching losses
• Efficient quasi-resonant operation at high power levels
• Frequency reduction at low power standby for improved system efficiency (<3 W)
• Cycle skipping mode at very low loads; Pi< 300 mW at no-load operation for a typical adapter application
• On-chip start-up current source
• Standby indication pin to indicate low output power consumption.