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using part# LM26CIM5-NPA to control a cooling fan inside an outdoor TV enclosure.

Larry Kaiser
Prodigy 10 points
Other Parts Discussed in Thread: LM26

Hello,  We are using  part# LM26CIM5-NPA to control a cooling fan  inside an outdoor TV enclosure.  According to the spec the device triggers at 45C. What temperature should the device reset itself ? Thank You 

  • 0
    TI__Expert 7220 points

    Hi Larry,

    The LM26 device never resets itself. But if you are talking about resetting the OS/!OS/US/!US pin after it has triggered at 45C then you have to look at the hysteresis value. The LM26 comes with an option of 2C or 10C hysteresis programmable via a pin. The output pin will stay active until it reaches the value of Ttrip - Hysteresis. A graph of it is seen here for a LM26CIM5-TPA:

    -Michael Wong