TMP390
- Resistor programmable temperature trip points and hysteresis options
- Resistor tolerances contribute zero error
- Hysteresis options: 5°C, 10°C and 20°C
- Separate outputs for overtemperature or undertemperature detection
- Channel A (overtemperature): +30 to +124°C, 2°C steps
- Channel B (undertemperature): –50 to +25°C, 5°C steps
- Accuracy level options (maximum at −55°C to +130°C):
- A2 Level: ±3.0°C (±1.5°C from 0°C to +70°C)
- A3 Level: ±3.5°C (±2.0°C from 0°C to +70°C)
- Ultra-low power consumption: 0.5 µA typical at 25°C
- Supply voltage: 1.62 to 5.5 V
- Open-drain outputs
- Trip test function enables in-system testing
- Available in a SOT-563 (1.60-mm × 1.20-mm), 6-pin package
The TMP390 device is part of a family of ultra-low power, dual channel, resistor programmable temperature switches that enable protection and detection of system thermal events from –50°C to 130°C. The TMP390 offers independent overtemperature (hot) and undertemperature (cold) detection . The trip temperatures (TTRIP) and thermal hysteresis (THYST) options are programmed by two E96-series resistors (1% tolerance) on the SETA and SETB pins. Channel A resistors can range from 1.05 KΩ to 909 KΩ, representing one of 48 unique values. Channel B resistors can range from 10.5 KΩ to 909 KΩ
The value of the resistor to ground on SETA input sets the TTRIP threshold of Channel A. The value of the resistor to ground on SETB input sets the TTRIP threshold of Channel B, as well as the THYST options of 5°C, or 10°C for both channels, to prevent undesired digital output switching. When the SETB input is connected to ground, Channel A operates with 20°C hysteresis. Resistors accuracy has no impact to TTRIP accuracy.
To enable customer board-level manufacturing, the TMP390 supports a trip test function where the digital outputs are activated by exercising the SETA or SETB pin.
기술 자료
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | TMP390 Ultra-Small Dual-Channel 0.5-μA Resistor-Programmable Temperature Switch datasheet (Rev. A) | 2020/07/31 | |
| Application brief | Improving System Reliability in Auto and Ind. Cameras w/ AccurateTemp. Sensing | PDF | HTML | 2022/01/03 | |
| Application note | System Optimization Through Integrated Solutions for Temp. Threshold Detection | PDF | HTML | 2021/07/13 | |
| Certificate | TMP390EVM EU Declaration of Conformity (DoC) | 2020/04/28 | ||
| E-book | E-book: An engineer’s guide to industrial robot designs | 2020/02/12 | ||
| Technical article | Protect outdoor cameras from extreme weather with a temperature switch | PDF | HTML | 2020/01/13 | |
| Application brief | Self Diagnostics and Environmental Sensing in IP Network Cameras | 2019/10/10 | ||
| Technical article | Driving industrial innovation with small-size sensors | PDF | HTML | 2019/09/12 | |
| EVM User's guide | TMP390EVM User's Guide | PDF | HTML | 2018/09/13 |
설계 및 개발
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TMP390EVM — TMP390 듀얼 트립 저항 프로그래머블 온도 스위치 평가 모듈
The TMP390 evaluation module (EVM) is a plug-and-play system to test and evaluate the TMP390 analog temperature switch. TMP390EVM features resistor-programmable inputs for the dual-channel switch with both hot and cold trip settings.
The EVM can be plugged into a USB port to supply power to the (...)
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| SOT-5X3 (DRL) | 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