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CONFIG_SENSORS_ADT7475: Analog Devices ADT7473, ADT7475, ADT7476 and ADT7490

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Get the item adt7490 ordered or get your money back. Back to the homepage. If the temperature exceeds the sensor's Ttherm value, the THERM signal will be asserted, and if enabled the fan will run at full speed.

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Since it adt7490 working great as is, the card is not going back in. Picco Jr.

Member Posts: 6. The driver will not read the registers more often than once every other second. Further, configuration data is only read once per minute. The Extended Resolution 2 register 0x77 should be read first. This causes all temperature reading registers to be frozen until all temperature reading registers have been read adt7490.


The ADT has temperature adt7490 registers at Address 0x70, Address 0x71, and Address 0x72 for the Remote 1, local, and Remote 2 temperature channels, respectively. By performing a one-time calibration of the system, the user can determine the offset caused by system board noise and adt7490 it out using the offset registers.

The offset registers automatically add adt7490 twos complement 8-bit reading to every temperature measurement. The adt7490 offset range and resolution is selected by setting Bit 1 of Register 0x7C.

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This ensures adt7490 the readings in the temperature measurement registers are as accurate as possible. Setting this bit to 0 means the LSBs add 0.

Turn-off Averaging For each temperature measurement read from a value register, 16 readings have actually been made internally, and the results averaged, before being placed into the value register. Sometimes it is necessary to take adt7490 very fast measurement. Setting Bit 4 of Configuration Register 2 0x73 turns averaging off.

  • ADT (ONSEMI) PDF技术资料下载 ADT 供应信息 IC Datasheet 数据表 (1/75 页)
  • ADT (ONSEMI) PDF技术资料下载 ADT 供应信息 IC Datasheet 数据表 (1/75 页)
  • ADT7490 Datasheet (data sheet) PDF - Remote Thermal Monitor and Fan Controller

The default round-robin cycle time adt7490 averaging off is a maximum of 23 ms. In this mode, the ADT can be made to read a single temperature channel only. Overtemperature Events Overtemperature events on any of the temperature channels can be detected and dealt with automatically in automatic fan speed control mode. These can form the basis of system status monitoring; a status bit can be set for any out-of-limit condition and is detected by polling the adt7490 ADT is a thermal monitor and multiple PWM fan controller for noise- sensitive or power-sensitive applications requiring active system cooling.

The Adt7490 is a thermal monitor and multiple PWM fan controller adt7490 noise-sensitive or power-sensitive applications requiring active system cooling. The ADT includes a local temperature sensor, two remote temperature sensors including series resistance cancellation, and.

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