LM57 Description
The LM57 is a precision, dual-output, temperature switch with integrated analog temperature sensor. The trip temperature (TTRIP) is programmable by using two external 1% resistors. Using extremely small packaged resistors (0.5 mm x 1 mm), the LM57 can be programmed to any of 256 trip temperatures while consuming very little board space.
LM57 Key Features
- Trip temperature set by external resistors
- External resistor tolerance contributes zero error
- Push-pull and open-drain temperature switch outputs
- 50°C to 150°C
- Very linear analog VTEMP temperature sensor output
- Analog and digital outputs are short-circuit protected
- TRIP-TEST pin allows in-system testing
- Latching function for the digital outputs
- Very small 2.5 mm by 2.5 mm 8-Pin LLP package
- Supply voltage