TIDA-00167
4~20mA 루프 전원 공급 트랜스미터용 절연 초저전력 설계
TIDA-00167
개요
The objective of this design is to provide a turn-key solution able to power the electronics of isolated loop powered 4 to 20 mA transmitters or other low power applications with limited input current budget. It addresses the key requirements of such applications like operating over wide input voltage range, providing isolated and no-isolated noise-free outputs and offering a complete set of protection features. Multiple test points on the board, a dual layer - single side populated construction and a comprehensive documentation enable easy testing, modification and optimization by the user.
Watch the TIDA-00349 Overview video, covering the same isolated power topology as used in the TIDA-00167 NOW
특징
- Operates over a wide input voltage range from 8 to 33
- Provides isolated and non-isolated 3.3V rails, selectable between low Iq LDOs and high PSRR LDOs
- Highly efficient isolated DC/DC converter with constant switching frequency achieves more than 70% efficiency at 5 to 8 mW load
- Contains input surge protection (EN 61000-4-5: ±1 kV), reverse protection, current limiters for hot-plug and surge and protects a transmitters loop current sense circuit
- On-board ripple filter to address conducted EMI requirements (EN 55011) and decoupling from loop current
- Fully functional board which can easily be tested, modified and optimized
완조립 보드는 테스팅과 성능 검증을 위해서만 개발되었으며 판매를 위한 것이 아닙니다.
설계 파일 및 제품
설계 파일
바로 사용 가능한 시스템 파일을 다운로드하여 설계 프로세스에 속도를 높여 보십시오.
설계 구성요소, 참조 지정자 및 제조업체/부품 번호의 전체 목록
기술 자료
| 유형 | 직함 | 최신 영어 버전 다운로드 | 날짜 | ||
|---|---|---|---|---|---|
| * | 설계 가이드 | Isolated Ultra-Low Power Design for 4- to 20-mA Loop-Powered Transmitters | 2014. 6. 20 | ||
| 백서 | Powering sensors with LDOs for industrial process control white paper | 2015. 2. 12 |