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PDF MLX90247C Data sheet ( Hoja de datos )
| Número de pieza | MLX90247C | |
| Descripción | Thermopile w/NTC Thermistor | |
| Fabricantes | Melexis | |
| Logotipo |  |
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MLX90247C
Thermopile w/NTC Thermistor
Features and Benefits
Solid state sensor
High reliability
Low cost, small size
On chip temperature sensor
Applications
Non-Contact Temperature Sensing
Differential Temperature Sensing
Climate Control
Ear, Temple Thermometers
Household and Commercial Appliances
Ordering Information
Part No.
MLX90247C
Description
Thermopile with 100K NTC Thermistor
Functional Diagram
ϑ−
Description
The MLX90247C is a thermopile sensor IC which
detects very small amounts of heat radiation. The
sensor consists of a membrane with a thermopile on
top of it.
The hot junctions of the thermopile are positioned
near the center of the membrane, the cold junctions
above the bulk silicon edge.
Due to the low thermal conductivity of the
membrane, absorbed heat will cause the
temperature to increase more at the center of the
membrane than at the edge above the bulk. This
temperature difference is converted to an electric
potential by the thermo-electric effect in the
thermopile junctions. No supply voltage is needed.
The sensor IC is packaged together with a NTC chip
thermistor for cold junction reference. The
thermopile and thermistor are separate components,
mounted in close proximity. The NTC thermistors
have higher sensitivity at low temperatures than the
standard PTC thermistors in the B and D models.
The sensor and thermistor can be used independent
of each other if desired, as the thermopile potential
is floating.
MLX90247C Discrete Infrared Sensor IC
Page 1
Rev 1.0 17/Feb/01
1 page | ||
| Páginas | Total 4 Páginas | |
| PDF Descargar | [ Datasheet MLX90247C.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| MLX90247 | Discrete Infrared Thermopile Detectors | Melexis |
| MLX90247B | Thermopile w/On-Chip Thermistor | Melexis |
| MLX90247C | Thermopile w/NTC Thermistor | Melexis |
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