TPS92075
- Controlled Reference Derived PFC
- Integrated Digital Phase-Angle Decoder
- Digital 50/60 Hz Synchronization
- Phase-Symmetry Balancing
- Constant LED current operation
- Fast Start-up
- Dimming Implemented Via Analog Reference Control
- Smooth Dimming Transitions
- Overvoltage Protection
- Feedback Short-Circuit Protection
- Leading and Trailing Edge Dimmer Compatibility
- Low BOM Cost and Small PCB Footprint
- Patent Pending Digital Architecture
- Available in 8-Pin SOIC and 6-Pin TSOT
The TPS92075 is a hybrid power factor controller (PFC) with a built-in phase dimming decoder. The device analyzes line cycles continuously using an internal, low-power, digital controller for shape and symmetry. The power converter stage generates an analog current reference and uses it to regulate the output current. The device uses control algorithms to manipulate the analog reference. These algorithms optimize dimmer compatibility, power factor and total harmonic distortion (THD).
Using a constant off-time control, the solution achieves low component count, high efficiency and inherently provides variation in the switching frequency. This variation creates an emulated spread spectrum effect easing the converters EMI signature and allowing a smaller input filter.
The TPS92075 also includes standard features: current limit, overvoltage protection, thermal shut-down, and VCC undervoltage lockout, all in packages
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | Non-isolated, Phase Dimmable, Buck PFC LED Driver with Digital Ref Control datasheet (Rev. B) | 2013. 9. 20 | ||
| 백서 | Common LED Functions and LED Driver Design Considerations | 2020. 9. 21 | |||
| 선택 가이드 | Power Management Guide 2018 (Rev. R) | 2018. 6. 25 | |||
| 사용 설명서 | Using the TPS92075 Buck Converter | 2013. 6. 14 | |||
| 사용 설명서 | Using the TPS92075 Buck-Boost EVM (Rev. A) | 2013. 4. 16 |
설계 및 개발
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TPS92075EVM2 — 비절연, 단계별 조광 가능, 벅 PFC LED 드라이버 평가 모듈
The TPS92075EVM2 implements a 120V buck dimming solution using the TPS92075 integrated circuit from Texas Instruments. The TPS92075 is a hybrid power factor controller with a built-in phase dimming decoder. The EVM can support applications up to ~13W and includes output at LED voltage up to 35V.
TPS92075DESIGN-CALC — TPS92075 설계 계산기
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| SOIC (D) | 8 | Ultra Librarian |
| SOT-23-THN (DDC) | 6 | Ultra Librarian |