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ADT6501/ADT6502/ADT6503/ADT650
2009-08-23 00:00:00
ADT6501/ADT6502/ADT6503/ADT6504 低成本2.7V至5.5 V,微温度开关 采用SOT-23封装
ADT6504: Low Cost, 2.7 V to 5.5 V, Micropower Temperature Switch in SOT-23 (Monitors Temps from −45°C to +15°C)
Product 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.
These devices require no external components and typically consume 30 μA 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.
The ADT6501 and ADT6502 are used for monitoring temperatures from +35°C to +115°C only. Therefore, the logic output pin becomes active when the temperature goes higher than the selected trip point temperature.
The ADT6503 and ADT6504 are used for monitoring temperatures from −45°C to +15°C only. Therefore, the logic output pin becomes active when the temperature goes lower than the selected trip point temperature.
Product Highlights
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.
Factory 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, 5-lead SOT-23 package.
Pin-selectable temperature hysteresis of 2°C or 10°C.
Temperature resolution of 0.0625°C.
Applications
Medical equipment
Automotive
Cell phones
Hard disk drives
Personal computers
Electronic test equipment
Domestic appliances
Process control
Pin Configuration for ADT6504
ADT6501/ADT6502/ADT6503/ADT6504,pdf datasheet (Micropower Temperature Switch)
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