LM3880-Q1
- Qualified for automotive applications
- AEC-Q100 qualified with the following results:
- Device temperature grade: –40°C to 125°C junction uemperature range
- Simple solution for sequencing three voltage rails from a single input signal
- Easily cascade up to three devices to sequence as many as nine voltage rails
- Powerup and powerdown control
- Tiny 2.9-mm x 1.6-mm footprint
- Low quiescent current: 25 µA
- Input voltage range: 2.7 V to 5.5 V
- Standard timing options available
The LM3880-Q1 simple power supply sequencer offers the easiest method to control powerup sequencing and powerdown sequencing of multiple Independent voltage rails. By staggering the startup sequence, it is possible to avoid latch conditions or large in-rush currents that can affect the reliability of the system.
Available in a 6-pin SOT-23 package, the simple sequencer contains a precision enable pin and three open-drain output flags. The open-drain output flags permit that they can be pulled up to distinct voltage supplies separate from the sequencer VDD (only if they do not exceed the recommended maximum voltage of 0.3 V greater than VDD), so as to interface with ICs requiring a range of different enable signals. When the LM3880-Q1 is enabled, the three output flags sequentially release, after individual time delays, thus permitting the connected power supplies to start up. The output flags follow a reverse sequence during power down to avoid latch conditions.
EPROM capability allows every delay and sequence to be fully adjustable. Contact Texas Instruments to request a non-standard configuration.
기술 자료
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | LM3880-Q1 Simple Power Sequencer datasheet (Rev. A) | 2021/02/26 | |
| Technical article | The need for sequencing in automotive applications | PDF | HTML | 2018/01/30 | |
| Technical article | Improving DDR Memory Performance in Automotive Applications | PDF | HTML | 2017/06/22 | |
| Analog Design Journal | Power-supply sequencing for FPGAs | 2014/10/24 | ||
| EVM User's guide | AN-1491 LM3880 Power Sequencer Demo Board (Rev. A) | 2013/05/07 | ||
| Application note | LM1771 and LM3880 Based FPGA Power Supply Reference Design (Rev. A) | 2013/05/05 | ||
| Application note | AN-1603 LM274X Reference Designs (Rev. C) | 2013/05/01 | ||
| Application note | Power Supply Design Considerations for Modern FPGAs (Power Designer 121) | 2010/02/02 |
설계 및 개발
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LM3880EVAL — 전원 시퀀서
The LM3880 evaluation board has been designed to connect directly to the power supplies of an existing system to enable sequencing. Upon enabling the device, the three open drain output flags will rise in sequential order, 1-2-3. Once the part is disabled, the shutdown sequence will occur in (...)
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TIDA-00803 — 단일 코어 전압 애플리케이션 프로세스를 사용한 전면 카메라 시스템용 자동차 전원 설계
TIDA-00530 — 저전력 TDA3x 기반 시스템을 위한 차량용 전원 레퍼런스 디자인
TIDA-00346 — 보급형 코어 애플리케이션 기반 ADAS 시스템을 위한 비용에 최적화된 전원 공급 장치 솔루션
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| SOT-23 (DBV) | 6 | Ultra Librarian |
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