The LM64 is a remote diode temperature sensor with PWM fan control. The LM64 accurately
measures its own temperature and that of a remote diode. The LM64 remote temperature accuracy is
factory trimmed for a MMBT3904 diode-connected transistor with a 16°C offset for high temperatures.
TACTUAL DIODE JUNCTION = TLM64 +
The LM64 features a PWM, open-drain, fan control output, 5 GPIO (General Purpose
Input/Output) and 5 GPD (General Purpose Default) pins. The 8-step Lookup Table allows for a
non-linear fan speed vs. temperature transfer function often used to quiet acoustic fan
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