TEA1654 Datasheet PDF

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. 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)
● Short winding protection
● Undervoltage protection (foldback during overload)
● Overtemperature protection (latched)
● Low and adjustable overcurrent protection trip level
● Soft (re)start
● Mains voltage-dependent operation-enabling level
● General purpose input for lock protection.