TPS92074
- Controlled Reference Derived PFC
- Digital 50/60 Hz Synchronization
- Constant LED current operation
- Single Winding Magnetic Configurations
- Low Typical Operating Current
- Fast Start-up
- Overvoltage Protection
- Feedback Short-Circuit Protection
- Wide Temperature Operation Range
- Low BOM Cost and Small PCB Footprint
- Patent Pending Digital Architecture
- 8-Pin SOIC and 6-Pin TSOT Available
The TPS92074 is a hybrid power factor controller (PFC) optimized for driving LED lighting solutions. The device monitors the converter rectified AC waveform using an internal, low-power, digital controller. The controller and DAC generate a synchronized triangular reference to regulate the output current. By allowing for some variation in the LED current over a line cycle and maintaining a regulated overall average current, high power factor solutions can be achieved.
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 TPS92074 also includes standard features: current limit, overvoltage protection, thermal shut-down, and VCC undervoltage lockout, all in packages
기술 문서
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | Non-Isolated, Buck PFC LED Driver with Digital Reference Control datasheet | 2013/07/26 | |
| White paper | Common LED Functions and LED Driver Design Considerations | 2020/09/21 |
설계 및 개발
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| 패키지 | 핀 | 다운로드 |
|---|---|---|
| SOIC (D) | 8 | 옵션 보기 |
| SOT-23-THN (DDC) | 6 | 옵션 보기 |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치