- on Miscellaneous Electronics
- Published in issue 7/2005 on page 0
Resistor-programmable Temperature Switch
The switching threshold of the MAX6509 temperature switch from Maxim can be programmed over a range of –40 °C to +125 °C using an external resistor. The IC needs only two external components. A hysteresis value of 2 °C (typical) or 10 °C (typical) can be selected by connecting the HYST pin to ground or Vcc, respectively.