TPS3422
- Very Small Package: 1.45-mm × 1.00-mm SON
- Operating Range: 1.6 V to 6.5 V
- Single (TPS3422) or Dual (TPS3420 and
TPS3421) Push-Button Inputs - Low Supply Current: 250 nA (Typical)
- Two-State Logic, User-Selectable Input Delay:
- For Example: 7.5 s and 0 s
- Multiple Timing Options Available
- Fixed Time-out Pulse at RST (TPS3421 and
TPS3422): 400 ms (Typical)- Other Timing Options Available on Request
- Active Low, Open-Drain Output
The TPS3420, TPS3421, and TPS3422 (TPS342x) are low-current, ultrasmall, push-button reset timers. These devices use a long timing setup delay to provide the intended system reset, and avoid resets from short push-button closures or key presses. This reset configuration also allows for differentiation between software interrupts and hard system resets.
The TPS3420 and TPS3421 monitor two inputs (PB1 and PB2) and output an active-low reset pulse signal (RST) when both inputs are low for the selected time delay. For the TPS3421, RST remains low for a factory-programmed fixed time. For the TPS3420, RST remains low until one of the PBx inputs is released. The need for a dedicated reset button is eliminated because two inputs are used to ensure reset. The TPS3422 monitors one input (PB1) and outputs an active-low reset pulse signal (RST) when PB1 is low for the selected time delay.
The TPS342x have an open-drain output that can be wire-ORed with other open-drain devices. The TPS342x operate from 1.6 V to 6.5 V over the 40°C to +125°C temperature range, and provide a precise, space-conscious micropower solution for system resetting needs.
기술 자료
유형 | 직함 | 날짜 | ||
---|---|---|---|---|
* | Data sheet | TPS342x Low-Power, Push-Button Controllers With Configurable Delay datasheet (Rev. B) | PDF | HTML | 2014/09/02 |
Application note | Programmable Push-Button, Pulse Detector, and Pulse Generator Solutions | 2020/03/10 | ||
Selection guide | Voltage Supervisors (Reset ICs) Quick Reference Guide (Rev. H) | 2020/02/28 | ||
E-book | Voltage Supervisor and Reset ICs: Tips, Tricks and Basics | 2019/06/28 | ||
Selection guide | Power Management Guide 2018 (Rev. R) | 2018/06/25 | ||
User guide | TPS3421EGEVM-156 Evaluation Module | 2012/09/12 |
설계 및 개발
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TPS3421EGEVM-156 — TPS3421EG 평가 모듈
TPS3422EG Unencrypted PSpice Transient Model Package (Rev. A)
PSPICE-FOR-TI — TI 설계 및 시뮬레이션 툴용 PSpice®
TI 설계 및 시뮬레이션 환경용 PSpice는 기본 제공 라이브러리를 이용해 복잡한 혼합 신호 설계를 시뮬레이션할 수 있습니다. 레이아웃 및 제작에 (...)
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패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
---|---|---|
USON (DRY) | 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