ADT6501: Low Cost, 2.7 V to 5.5 V, Micropower Temperature Switch in SOT-23 w/ Push/Pull Output, Monitors Temps from +35¡ãC to +115¡ãC

The ADT6501/ADT6502 are trip point temperature switches available in a 5-lead SOT-23 package. Each part contains an internal band gap temperature sensor for local temperature sensing. When the temperature crosses the trip point setting, the logic output is activated. The ADT6501 logic output is active low and open-drain. The ADT6502 logic output is active high and push-pull. The temperature is digitized to a resolution of 0.125¡ãC (11 bit). The factory trip point settings are 10¡ãC apart starting from 35¡ãC to 115¡ãC

These devices require no external components and typically consume 30 A supply current. Hysteresis is pin-selectable at 2¡ãC and 10¡ãC. The temperature switch is specified to operate over the supply range of 2.7 V to 5.5 V.

The ADT6501/ADT6502 are used for monitoring temperatures from 35¡ãC to 115¡ãC only. Therefore, the logic output pin becomes active when the temperature goes higher than the selected trip point temperature.

Product Highlights

1. - based temperature measurement gives high accuracy and noise immunity.
2. Wide operating temperature range from 55¡ãC to +125¡ãC.
3. ¡À0.5¡ãC typical accuracy from 45¡ãC to +115¡ãC.
4. Factory threshold settings from 35¡ãC to 115¡ãC in 10¡ãC increments.
5. Supply voltage is 2.7 V to 5.5 V.
6. Supply current of 30 A.
7. Space-saving, 5-lead SOT-23 package.
8. Pin-selectable temperature hysteresis of 2¡ãC or 10¡ãC.
9. Temperature resolution of 0.125¡ãC.

Applications