GreenChipTMII SMPS control IC Integrated Circuit Chip Universal mains supply operation TEA1533AT
circuit board ic
,electronic components ic
TEA1533T; TEA1533AT
GreenChipTMII SMPS control IC
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.
Protection features
• Safe restart mode for system fault conditions
• Continuous mode protection by means of demagnetization detection (zero switch-on current)
• Accurate and adjustable overvoltage protection (latched in TEA1533T, safe restart in TEA1533AT)
• Short winding protection
• Undervoltage protection (foldback during overload)
• Overtemperature protection (latched in TEA1533T, safe restart in TEA1533AT)
• Low and adjustable overcurrent protection trip level
• Soft (re)start
• Mains voltage-dependent operation enabling level.
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