NXP Semiconductors LTA803N
The TEA1753T is the third generation of green Switched Mode Power Supply (SMPS) controller ICs. The TEA1753T combines a controller for Power Factor Correction (PFC) and a flyback controller.FEATURES AND BENEFITS
2.1 Distinctive features● Integrated PFC and flyback controller
● Universal mains supply operation (70 V (AC) to 276 V (AC))
● Dual-boost PFC with accurate maximum output voltage (NXP patented)
● High level of integration, resulting in a very low external component count and a cost-effective design
● Adjustable PFC switch off delay 2.2 Green features
● On-chip start-up current source
● Power down functionality for very low standby power 2.3 PFC green features
● Valley/Zero Voltage Switching (ZVS) for minimum switching losses (NXP patented)
● Frequency limitation to reduce switching losses
● PFC is switched off when a low load is detected at the flyback output 2.4 Flyback green features
● Valley switching for minimum switching losses (NXP patented)
● Frequency reduction with adjustable minimum peak current at low-power operation to maintain high efficiency at low output power levels 2.5 Protection features
● Safe restart mode for system fault conditions
● Continuo...