xref: /linux/Documentation/devicetree/bindings/iio/temperature/melexis,mlx90632.yaml (revision 4db102dcb0396a4ccf89b1eac0f4eb3fd167a080) 
1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/iio/temperature/melexis,mlx90632.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Melexis MLX90632 and MLX90635 contactless Infra Red temperature sensor
8
9maintainers:
10  - Crt Mori <cmo@melexis.com>
11
12description: |
13  https://www.melexis.com/en/documents/documentation/datasheets/datasheet-mlx90632
14
15  There are various applications for the Infra Red contactless temperature
16  sensor and MLX90632 is most suitable for consumer applications where
17  measured object temperature is in range between -20 to 200 degrees
18  Celsius with relative error of measurement below 1 degree Celsius in
19  object temperature range for industrial applications. Since it can
20  operate and measure ambient temperature in range of -20 to 85 degrees
21  Celsius it is suitable also for outdoor use.
22
23  Be aware that electronics surrounding the sensor can increase ambient
24  temperature. MLX90632 can be calibrated to reduce the housing effect via
25  already existing EEPROM parameters.
26
27  Since measured object emissivity effects Infra Red energy emitted,
28  emissivity should be set before requesting the object temperature.
29
30  https://www.melexis.com/en/documents/documentation/datasheets/datasheet-mlx90635
31
32  MLX90635 is most suitable for consumer applications where
33  measured object temperature is in range between -20 to 100 degrees
34  Celsius with relative error of measurement 2 degree Celsius in
35  object temperature range for industrial applications, while just 0.2
36  degree Celsius for human body measurement applications. Since it can
37  operate and measure ambient temperature in range of -20 to 85 degrees
38  Celsius it is suitable also for outdoor use.
39
40  Since measured object emissivity effects Infra Red energy emitted,
41  emissivity should be set before requesting the object temperature.
42
43properties:
44  compatible:
45    enum:
46      - melexis,mlx90632
47      - melexis,mlx90635
48
49  reg:
50    maxItems: 1
51    description: Default is 0x3a, but can be reprogrammed.
52
53  vdd-supply:
54    description: provide VDD power to the sensor.
55
56required:
57  - compatible
58  - reg
59
60additionalProperties: false
61
62examples:
63  - |
64    i2c {
65        #address-cells = <1>;
66        #size-cells = <0>;
67
68        temp-sensor@3a {
69            compatible = "melexis,mlx90632";
70            reg = <0x3a>;
71            vdd-supply = <&ldo4_reg>;
72        };
73    };
74...
75