产品概览
The LM35DT/NOPB from Texas Instruments is a precision integrated-circuit temperature sensor with a linear 10 mV/°C output scale factor in a TO-220-3 through-hole package. It operates from 4V to 30V supply without external calibration, provides accuracy of ±0.5°C at 25°C, and measures temperature from -55°C to +150°C, making it ideal for direct temperature sensing in thermal management and environmental monitoring.
主要规格
| 输出类型 | Analog voltage (10 mV/°C) |
| Temperature Range | -55°C 至 +150°C |
| Accuracy at 25°C | ±0.5°C (typ), ±1.0°C (max) |
| Linearity | ±0.15°C typ |
| 电源电压 | 4V to 30V |
| Supply Current | 60 µA typ (self-heating <0.1°C) |
| Output Impedance | 0.1 Ohm typ |
| Calibration | Not required (factory trimmed) |
| 工作温度 | -55°C 至 +150°C |
| 包装 | TO-220-3 (tab to GND) |
特点
- Linear 10 mV/°C output directly calibrated in Celsius
- No external calibration or trimming required
- ±0.5°C accuracy at 25°C
- Low 60 µA supply current minimizes self-heating
- Wide 4V to 30V supply range
- Low output impedance for direct ADC drive
- TO-220 package allows heat sink mounting
应用
- Thermal management and overtemperature protection
- HVAC and environmental monitoring
- Battery temperature monitoring
- Power supply thermal shutdown
- Industrial process temperature measurement