The LM57BISD-5/NOPB is a precision Temperature Switch and Analogue Temperature Sensor for wide temperature applications. The trip temperature (TTRIP) is selected from 256 possible values in the range of -40 to 150°C. The VTEMP is a class AB analogue voltage output that is proportional to temperature with a programmable negative temperature coefficient (NTC). Two external 1% resistors set the TTRIP and VTEMP slope. The digital and analogue outputs enable protection and monitoring of system thermal events Built-in thermal hysteresis (THYST) prevents the digital outputs from oscillating. assert when the temperature falls below a temperature equal to TTRIP minus THYST. Trip Temperature Set by External Resistors with Accuracy of ±1.7°C or ±2.3°C from -40 to +150°C.
- Resistor tolerance contributes zero error
- Push-pull and Open-drain switch outputs
- Very linear analogue VTEMP sensor output with ±0.8°C or ±1.3°C accuracy from -50 to +150°C
- Short-circuit protected analogue and digital outputs
- Latching function for digital outputs
- TRIP-TEST pin allows in-system testing
- Low power minimizes self-heating to under 0.02°C
- Green product and no Sb/Br
传感与仪器, 自动化与过程控制, 工业, 车用, 通信与网络, 航空电子
(EN)
