Low Cost, 2.7 V to 5.5 V, Pin-Selectable Temperature Switch in SOT-23 (Open Drain Output)
These devices typically consume 30 μA of supply current. Hysteresis is pin selectable at 2°C and 10°C. The temperature switch is specified to operate over the supply range of 2.7 V to 5.5 V.
When the ADT6401/ADT6402 are used for monitoring tempera- tures from 45°C to 115°C, the logic output pin becomes active when the temperature goes higher than the selected trip point temperature. When the ADT6401/ADT6402 are used for monitoring tempera- tures from −45°C to +5°C, the logic output pin becomes active when the temperature goes lower than the selected trip point temperature.
- Σ-Δ based temperature measurement gives high accuracy and noise immunity.
- Wide operating temperature range from −55°C to +125°C.
- ±0.5°C typical accuracy from −45°C to +115°C.
- Pin-selectable threshold settings from −45°C to +115°C in 10°C increments.
- Supply voltage is 2.7 V to 5.5 V.
- Supply current of 30 μA.
- Space-saving, 6-lead SOT-23 package.
- Pin-selectable temperature hysteresis of 2°C or 10°C.
- Temperature resolution of 0.125°C.
Data Sheet, Rev. 0, 5/08
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
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