TEA1752LT Overview
The GreenChip III is the third generation of green Switched Mode Power Supply (SMPS) controller ICs. The TEA1752T and TEA1752LT bine a controller for Power Factor Correction (PFC) and a flyback controller. The high level of integration facilitates the design of a cost-effective power supply using a minimum number of external ponents.
TEA1752LT Key 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 Semiconductors patented, US patent number: US7575280)
- High level of integration, resulting in a very low external ponent count and a cost-effective design
- Adjustable PFC switch-off delay
- On-chip start-up current source
- Valley/zero voltage switching for minimum switching losses (NXP Semiconductors patented, US patent number: US6256210)
- Frequency limitation to reduce switching losses
- PFC is switched off when a low load is detected at the flyback output
- Valley switching for minimum switching losses (NXP Semiconductors patented, US patent number: US6256210)