TMUX7349F
- Wide supply range:
- Dual supply: ±5 V to ±22 V
- Single supply: 8 V to 44 V
- Integrated fault protection:
- Overvoltage protection, source to supplies or source to drain: ±85 V
- Overvoltage protection: ±60 V
- Power-off protection: ±60 V
- Adjustable overvoltage triggering thresholds
- V FP: 3 V to V DD, V FN: 0 V to V SS
- Interrupt flags to indicate overall and specific fault channel information
- Non-fault channels continue to operate with low leakage currents
- Output clamped to the fault supply in overvoltage condition
- Latch-up immunity by device construction
- Logic capable: 1.8-V
- Fail-safe logic: up to 44 V independent of supply
- Break-before-make switching
- Industry-standard TSSOP and smaller WQFN package
The TMUX7348F and TMUX7349F are modern complementary metal-oxide semiconductor (CMOS) analog multiplexers in 8:1 (single ended) and 4:1 (differential) configurations. The devices work well with dual supplies (±5 V to ±22 V), a single supply (8 V to 44 V), or asymmetric supplies (such as V DD = 12 V, V SS = –5 V). The overvoltage protection is available in powered and powered-off conditions, making the TMUX7348F and TMUX7349F devices suitable for applications where power supply sequencing cannot be precisely controlled.
The device blocks fault voltages up to +60 V and –60 V relative to ground in both powered and powered-off conditions. When no power supplies are present, the switch channels remain in the OFF state regardless of switch input conditions and logic control status. Under normal operation conditions, if the analog input signal level on any Sx pin exceeds positive fault supply (V FP) or negative fault supply (V FN) by a threshold voltage (V T), then the channel turns OFF and the Sx pin becomes high impedance. When the fault channel is selected, the drain pin (D or Dx) is pulled to the fault supply voltage (V FP or V FN) that was exceeded. The devices provide two active-low interrupt flags (FF and SF) to provide details of the fault. The FF flag indicates if any of the source inputs are experiencing a fault condition, while the SF flag is used to decode which specific inputs are experiencing a fault condition.
The low capacitance, low charge injection, and integrated fault protection enables the TMUX7348F and TMUX7349F devices to be used in front end data acquisition applications where high performance and high robustness are both critical. The devices are available in standard TSSOP package and smaller WQFN package (ideal if PCB space is limited).
기술 자료
유형 | 직함 | 날짜 | ||
---|---|---|---|---|
* | Data sheet | TMUX734xF ±60-V Fault-Protected, 8:1 and Dual 4:1 Multiplexers With Adjustable Fault Threshold, Latch-Up Immunity, and 1.8-V Logic datasheet (Rev. B) | PDF | HTML | 2023/07/13 |
Application note | Protecting and Maintaining Signal Integrity in PLC Systems (Rev. A) | PDF | HTML | 2024/07/22 | |
Application note | How to Handle High Voltage Common Mode Applications using Multiplexers | PDF | HTML | 2022/10/03 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
TMUX-24PW-EVM — 16, 20, 24핀 PW 얇은 수축 소형 아웃라인 패키지(TSSOP)용 TMUX 일반 평가 모듈
TMUX-24PW-EVM 평가 모듈을 사용하면 16, 20 또는 24핀 TSSOP 패키지(PW)를 사용하고 고전압 작동에 맞게 정격 조정된 TI의 TMUX 제품 라인의 빠른 프로토타이핑 및 DC 특성화가 가능합니다.
TMUXRTJ-RRQEVM — 20핀 RTJ 및 RRQ QFN 패키지용 일반 TMUX 평가 모듈
TMUXRTJ-RRQEVM을 사용하면 20핀 RTJ 또는 RRQ 패키지(QFN)를 사용하고 고전압 작동에 맞게 정격 조정된 TI의 TMUX 제품 라인의 빠른 프로토타이핑 및 DC 특성화가 가능합니다.
LEADED-ADAPTER1 — TI의 5, 8, 10, 16 및 24핀 리드 패키지의 빠른 테스트를 위한 DIP 헤더 어댑터에 대한 표면 실장
The EVM-LEADED1 board allows for quick testing and bread boarding of TI's common leaded packages. The board has footprints to convert TI's D, DBQ, DCT,DCU, DDF, DGS, DGV, and PW surface mount packages to 100mil DIP headers.
LEADLESS-ADAPTER1 — TI의 6, 8, 10, 12, 14, 16 및 20핀 리드 없는 패키지의 테스트를 위한 DIP 헤더 어댑터에 대한 표면 실장
패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
---|---|---|
TSSOP (PW) | 20 | Ultra Librarian |
WQFN (RTJ) | 20 | 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
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.