GENERAL DESCRIPTION

The ADT6501/ADT6502/ADT6503/ADT6504 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/ADT6503 logic output is active low and open-drain. The ADT6502/ADT6504 logic output is active high and push-pull. The temperature is digitized to a resolution of 0.125°C (11-bit). The factory trip point settings are 10°C apart starting from −45°C to +15°C for the cold threshold models and from +35°C to +115°C for the hot threshold models.

FEATURES

±0.5°C (typical) threshold accuracy

Factory-set trip points from

−45°C to +15°C in 10°C increments

+35°C to +115°C in 10°C increments

No external components required

Maximum temperature of 125°C

Open-drain output (ADT6501/ADT6503)

Push-pull output (ADT6502/ADT6504)

Pin-selectable hysteresis of 2°C and 10°C

Supply current of 30 µA (typical)

Space-saving, 5-lead SOT-23 package

APPLICATIONS

Medical equipment

Automotive

Cell phones

Hard disk drives

Personal computers

Electronic test equipment

Domestic appliances

Process control