LM2758
- Up to 700-mA Output Current
- 90% Peak Efficiency
- Indicator, Torch, and Flash Modes
- Time-out Circuitry Limits Flash Duration to 814 Milliseconds (Typical)
- Adaptive 1× and 1.5× Gains for Maximum Efficiency
- True Shutdown
- Internal Soft-Start Eliminates Inrush Current
- Ultra-Small Solution Size
- No Inductor, Only 4 Capacitors and a Resistor Required
- 2.022 mm × 1.527 mm × 0.6 mm Thin DSBGA package
The LM2758 device is an integrated low-noise, high-current switched capacitor DC-DC converter with a regulated current sink. The device is capable of driving loads up to 700 mA from a single-cell Li-Ion battery. Maximum efficiency is achieved over the input voltage range by actively selecting the proper gain based on the LED forward voltage and current requirements.
One external low-power resistor sets the desired current for indicator, torch, and flash modes. To protect the devices and the flash LED, internal time-out circuitry turns off the LM2758 in case of a faulty prolonged flash mode. Internal soft-start circuitry limits the amount of inrush current during start-up.
For all available packages, see the orderable addendum at the end of the data sheet.기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | LM2758 Switched Capacitor Flash LED Driver in DSBGA Package datasheet (Rev. E) | PDF | HTML | 2016. 5. 3 | |
| 백서 | Common LED Functions and LED Driver Design Considerations | 2020. 9. 21 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| DSBGA (YZR) | 12 | Ultra Librarian |
주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.