LM50
- Industry-Standard Sensor Gain/Offset:
- 10mV/°C, 500mV at 0°C
- LM50HV (Next-generation):
- Drop-in replacement for LM50B/LM50C
- Wide supply range: 3V to 36V
- Temperature Accuracy:
- ±2°C (Max) over 20°C to 70°C
- ±2.5°C (Max) over -10°C to 125°C
- ±3°C (Max) over -20°C to 150°C
- Quiescent Current (Typ): 52µA
- Nonlinearity: ±1.2°C (Max)
- LM50:
- Operating supply range: 4.5V to 10V
- LM50B Temperature Accuracy:
- ±2°C (Max) at 25°C
- ±3°C (Max) over temperature range
- LM50C Temperature Accuracy:
- ±3°C (Max) at 25°C
- ±4°C (Max) over temperature range
- Quiescent Current (Typ): 95µA
- Nonlinearity: ±0.8°C (Max)
- Available in Standard SOT23-3 package
- DC Output Impedance: 2kΩ/4kΩ (Typ/Max)
- Enables driving large capacitive loads
- Designed for LDO-less applications
- UL Recognized Component (LM50B, LM50C)
The LM50 and LM50HV devices are precision analog temperature sensors that can measure temperatures from -40°C to 125°C (for LM50) and -40°C to 150°C (for LM50HV) using a single positive supply. Unlike NTC thermistors, LM50 and LM50HV do not require any external calibration, trimming or software linearization leading to simplifying the circuitry requirements. The output voltage of the devices are linearly proportional to temperature (10mV/°C) and has a DC offset of 500mV at 0°C. The offset allows reading negative temperatures without the need for a negative supply. The output voltage of the LM50 and LM50HV ranges from 100mV (at -40°C) to 1.75V (at 125°C for LM50) and 2V (at 150°C for LM50HV), simplifying analog-to-digital converter (ADC) interfacing.
LM50HV is designed for LDO-less application due to stable functionality across wide supply range of 3V to 36V. Trimming and calibration of the LM50 and LM50HV at the wafer level provide long-term availability, low cost and consistent accuracy: LM50B (±3°C over temperature range), LM50C (±4°C over temperature range) and LM50HV (±3°C over -20°C to 150°C).
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技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | LM50 and LM50HV Industry-Standard, Analog Centigrade (10mV/°C) Temperature Sensor in the SOT-23 Package datasheet (Rev. I) | PDF | HTML | 2025/10/13 | ||
| Application brief | Marketing Selection Guide For Sensing in Humanoids (Rev. A) | PDF | HTML | 2026/6/4 | |||
| 證書 | UL Certificate of Compliance Vol1-Sec5 E232195 | 2018/8/6 | ||||
| 應用說明 | Tiny Temperature Sensors for Remote Systems | 2003/2/17 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
PMP10260 — 24Vdc 輸入 (雙汽車電池) 汽車多相同步降壓參考設計
這款高效率，高功率參考設計使用 LM5119 雙相同步降壓控制器，可在 60A 時調節 14.4V。此設計可用於從卡車上常見的雙電池系統供應單車電池電源。功能包含輸入 EMI 濾波、輸出熱插拔保護、輸入/輸出電流監控與溫度監控。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOT-23 (DBZ) | 3 | Ultra Librarian |