TPS3514
- Over-Voltage Protection and
Lockout: 12V, 5V, and 3.3V Supplies - Over-Current Protection and Lockout: 12V, 5V, and 3.3V Supplies
- Under-Voltage Protection and Lockout: 12V Supplies
- Under-Voltage Detect: 5V and 3.3V Supplies
- Fault-Protection Output with Open-Drain Output Stage
- Open-Drain, Power-Good Output Signal: Monitors Power-Good Signal Input 3.3V and 5V Supplies
- 300ms Power-Good Delay
- 75ms Delay: 5V, 3.3V Power-Supply Short-Circuit Turn-On Protection
- 2.3ms PSON Control To FPO Turn-Off Delay
- 38ms PSON Control Debounce
- Wide Supply Voltage Range: 4.5V to 15V
All trademarks are the property of their respective owners.
The TPS3514 is a PC switching power-supply system monitor with minimum external components. It provides under-voltage lockout (UVLO), over-voltage (OV), under-voltage (UV), over-current (OC) protection circuits, power-good indicator, and on/off control.
UVLO thresholds are 4.45V (on) and 3.65V (off). Over-current protection (OCP) and over-voltage protection (OVP) monitor 3.3V, 5V, and 12V supplies. When an OC or OV condition is detected, the power-good output (PGO) is asserted low and the fault protection output (FPO) is latched high. PSON from low-to-high resets the latch. The OCP function will be enabled 75ms after PSON goes LOW with PGI HIGH and a debounce of typically 38ms. A built-in 2.3ms delay with 38ms debounce from PSON to FPO output is enabled at turn-off.
An external resistor is connected between the RI pin and the GND pin. This will program a precise I(REF) for OCP function. The programmable I(REF) range is from 12.5µA to 62.5µA. Three OCP comparators and the I(REF) section are supplied by VS12. The current draw from the VS12 pin is less than 1mA.
The power-good feature monitors PGI, the 3.3V and 5V supplies, and issues a power-good signal when the output is ready.
The TPS3514 is characterized for operation from -40°C to +85°C. The TPS3514 is available in DIP-14 and SO-14 packages.
기술 문서
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | PC Power-Supply Supervisors datasheet (Rev. C) | 2006/12/01 | |
| Application note | Optimizing Resistor Dividers at a Comparator (Rev. B) | PDF | HTML | 2021/04/30 | |
| 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 | ||
| Application note | Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs | 2011/09/19 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
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 (...)
| 패키지 | 핀 | 다운로드 |
|---|---|---|
| PDIP (N) | 14 | 옵션 보기 |
| SOIC (D) | 14 | 옵션 보기 |
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