The LM96163 has remote and local temperature sensors with integrated fan control that includes TruTherm BJT transistor beta compensation technology for remote diode sensing. The LM96163 accurately measures: (1) its own temperature and (2) the temperature of a diode-connected transistor, such as a 2N3904, or a thermal diode commonly found on Computer Processors, Graphics Processor Units (GPU) and other ASIC's. The LM96163 has an offset register to correct for errors caused by different non-ideality factors of other thermal diodes.
The LM96163 also features an integrated, pulse-width-modulated (PWM), open-drain fan control output. Fan speed depends on a combination of the remote temperature reading, the lookup table and register settings. The 12-step Lookup Table (LUT) enables the user to program a non-linear fan speed vs. temperature transfer function often used to quiet acoustic fan noise. In addition a fully programmable ramping function has been added to allow smooth transitions between LUT setpoints.
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| Local sensor accuracy (max) | 3 |
| Type | Fan Controller |
| Operating temperature range (°C) | -40 to 125 |
| Supply voltage (min) (V) | 3 |
| Interface type | I2C, SMBus |
| Supply voltage (max) (V) | 3.6 |
| Features | ALERT, Tachometer |
| Supply current (max) (µA) | 825 |
| Temp resolution (max) (Bits) | 11 |
| Remote channels (#) | 1 |
| Addresses | 1 |
| Rating | Catalog |
| WSON (DSC) | 10 | 9 mm² 3 x 3 |
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