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Texas Instruments UCC256302 | Demoboard PMP40379
LLC resonant controller with high voltage start up enabling low standby power
Overview
| Topology | LLC Resonant Converter |
| Input voltage | 200-240 V |
| Output 1 | 42 V / 6 A |
| Output 2 | 42 V / 6 A |
| IC revision | B |
Description
This single-stage LLC converter reference design illustrates how to convert AC input voltage (100-120 Vac and 200-240 Vac) to isolated ±42-V DC output with the UCC256302 resonant controller. The design has a regulated ±42-V output that can handle up to 6 A of continuous output current and 12 A of peak current for 100 ms.
Features
- 100–120-Vac or 200–240-Vac input range operation without front-end PFC
- Provides ±42-V at 6-A continuous/12-A peak output current for audio amplifier
- More than 95% peak efficiency and less than 500-mW standby power consumption at 230-Vac
Typical applications
- Audio amplifier