ISOTMP35
- Robust integrated isolation barrier:
- Withstand isolation voltage: 3000VRMS
- Isolation working voltage: 500VRMS
- Isolation barrier life: > 50 years
- Temperature sensor accuracy
- ±0.5°C typical at 25°C
- ±1.2°C maximum from 0°C to 70°C
- ±2.5°C maximum from –40°C to 150°C
- Operating supply range: 2.3V to 5.5V
- Positive slope sensor gain: 10mV/°C, with 500mV offset at 0°C
- Fast thermal response: < 2 seconds
- Short circuit protected output
- Low power consumption: 9µA (typical)
- DFQ (SOIC-7) package
- Safety-related certifications (planned):
- 3kVRMS isolation for 1 minute per UL 1577
The ISOTMP35 is the industry’s first isolated temperature sensor IC, combining an integrated isolation barrier, up to 3000VRMS withstand voltage, with an analog temperature sensor featuring a 10mV/°C slope from –40°C to 150°C. This integration enables the sensor to be co-located with high voltage heat sources (for example: HV FETs, IGBTs, or HV contactors) without requiring expensive isolation circuitry. The direct contact with the high-voltage heat source also provides greater accuracy and faster thermal response compared with approaches where the sensor is placed further away to meet isolation requirements.
Operating from a non-isolated 2.3V to 5.5V supply, the ISOTMP35 allows easy integration into applications where sub-regulated power is not available on the high-voltage plane.
The integrated isolation barrier satisfies UL 1577 requirements. The surface mount package (7-pin SOIC) provides excellent heat flow from the heat source to the embedded thermal sensor, minimizing thermal mass and providing more accurate heat-source measurement. This reduces the need for time-consuming thermal modeling and improves system design margin by reducing mechanical variations due to manufacturing and assembly.
The ISOTMP35 class-AB output driver provides a strong 500µA maximum output to drive capacitive loads up to 1000pF and is designed to directly interface with analog-to-digital converter (ADC) sample and hold inputs.
관심 가지실만한 유사 제품
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기술 자료
유형 | 직함 | 날짜 | ||
---|---|---|---|---|
* | Data sheet | ISOTMP35 ±1.2°C , 3-kVRMS Isolated Temperature Sensor With Analog Output With < 2 Seconds Response Time and 500VRMS Working Voltage datasheet (Rev. A) | PDF | HTML | 2024/06/11 |
Application note | Improving Thermal Response Time and Accuracy in High- Voltage Applications | PDF | HTML | 2024/07/23 | |
EVM User's guide | ISOTMP35B Evaluation Module User's Guide | PDF | HTML | 2023/08/29 | |
Circuit design | Driving a SAR ADC directly without a front-end buffer circuit (Rev. A) | 2019/03/06 | ||
Circuit design | Circuit for driving an ADC with an instrumentation amplifier in high gain | 2018/10/04 |
설계 및 개발
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ISOTMP35BEVM — ISOTMP35 평가 모듈
패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
---|---|---|
SOIC (DFQ) | 7 | 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