• ADT7470 temperature reading failed

    Hi,

         We are using ADT7470 and TMP05 for fans control. Now we can control PWM duty in manu mode and also can read fan tach. But when we try to get temperature from reg 0x20~0x29, we only read the temp of -92  to -102℃,our TMP05 chain has 2 device. Our…

  • ADT7470 GPIO Status - part 2

    Hi,  

    I have the same problem with ADT7470 not being able to set GPIO output state, as it was already discussed at this question page - https://ez.analog.com/temperature_sensors/f/q-a/77459/adt7470-gpio-status/276442.

    I've tried setting register 0x81 and…

  • ADT7470 Status register 0x42

    Hello ADI support.

    I need you help.

    Then temperature dropped bellow Tmin and the fan controller AD7470 stops the Fan, but the Norm (bit 3 Register 0x42) doesn't asserted high) only corresponding fan[n] A 1 indicates that Fan [n]  has dropped below…

  • ADT7470 Hight frequency mode

    We are using 3 Fans an 2 Temp. sensors.

    We are using this fan controller over 15 years with 3 wire fans in Low frequency mode. (Register 0x40=0xC1).

    We started to use 4 wire fans with internal drive circuit, in Hight frequency mode. (Register 0x40=0x81…

  • RE: ADT7470 GPIO Status

    Hi 

    I have the same problem with ADT7470 not being able to set GPIO output state. I've tried setting register 0x81 and I also found in latest datasheet revision in table 49 (0x80 register) for GPIO direction for each port saying "Data for GPIO 3 is…

  • ADT7470: Can I perform a temperature readback of ADT7470 while in automatic fan control mode?

    Is it possible to perform a temperature readback of ADT7470 while in automatic
    fan control mode. It is not clear from the section “temperature readback by the
    host” on page 14 of datasheet if the recommended procedure given for radback of…
  • RE: Using ADT7470 Fan Controller without a temperature sensor

    This question has been closed by the EZ team and is assumed answered.
  • RE: ADT7470: disable pulse stretching in LF-PWM mode

    This question has been closed by the EZ team and is assumed answered.
  • RE: ADT7470 Interrupt

    This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

    Thank you,