產品詳細資料

Isolation rating Basic Withstand isolation voltage (VISO) (Vrms) 3000 Transient isolation voltage (VIOTM) (VPK) 4250 Surge isolation voltage (VIOSM) (VPK) 6500 Creepage (min) (mm) 4 Clearance (min) (mm) 4 Interface type Analog output Integrated isolated power Yes Local sensor accuracy (max) 1.2 Sensor gain (mV/°C) 10 Supply current (max) (µA) 12 Supply voltage (min) (V) 2.3 Supply voltage (max) (V) 5.5 Operating temperature range (°C) -40 to 150 Rating Catalog TI functional safety category Functional Safety-Capable
Isolation rating Basic Withstand isolation voltage (VISO) (Vrms) 3000 Transient isolation voltage (VIOTM) (VPK) 4250 Surge isolation voltage (VIOSM) (VPK) 6500 Creepage (min) (mm) 4 Clearance (min) (mm) 4 Interface type Analog output Integrated isolated power Yes Local sensor accuracy (max) 1.2 Sensor gain (mV/°C) 10 Supply current (max) (µA) 12 Supply voltage (min) (V) 2.3 Supply voltage (max) (V) 5.5 Operating temperature range (°C) -40 to 150 Rating Catalog TI functional safety category Functional Safety-Capable
SOIC (DFQ) 7 29.4 mm² 4.9 x 6
  • 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
  • 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.

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.

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* 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年 6月 11日
Circuit design Circuit for driving an ADC with an instrumentation amplifier in high gain (Rev. A) PDF | HTML 2024年 9月 24日
Circuit design Driving a SAR ADC directly without a front-end buffer circuit (Rev. B) PDF | HTML 2024年 9月 23日
Application note Improving Thermal Response Time and Accuracy in High- Voltage Applications PDF | HTML 2024年 7月 23日
EVM User's guide ISOTMP35B Evaluation Module User's Guide PDF | HTML 2023年 8月 29日

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ISOTMP35BEVM — ISOTMP35 評估模組

ISOTMP35BEVM 評估模組 (EVM) 可讓設計師評估 ISOTMP35 類比隔離式溫度感測器性能,其使用 USB 介面及板載 MSP430F5528 微控制器 (MCU),利於進行控制和資料記錄。感測器可與主機板分離,讓 ISOTMP35 能從遠端運作。EVM 也具備可連接至高電壓熱源的背側銅板,可同時評估溫度準確度和電壓隔離。
使用指南: PDF | HTML
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參考設計

TIDA-010257 — 10kW Vienna rectifier-based, three-phase power factor correction reference design

The Vienna rectifier power topology is used in high-power, three-phase power factor correction applications such as appliances, electric vehicle (EV) chargers, and telecom rectifiers. Control design of the rectifier can be complex. This reference design illustrates a method to control the power (...)
Design guide: PDF
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SOIC (DFQ) 7 Ultra Librarian

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