- TruTherm BJT test compensation technology supports remote diodes for 45nm, 65nm and 90nm processors
- Factory trimmed thermal diodes for Intel ® 45nm processors
- Accurate sensory diode connection 2N3904 transistor or on-board large processor or ASIC thermal diode
- Feel your temperature accurately
- The integrated PWM fan speed control output supports high resolution for 4-pin fans at 22.5kHz
- Fan sound and user-programmable 12-step lookup table noise reduction
- LUT fine resolution smooth transition function
- The tachometer input measures the fan speed
- Typical application shown in the mode of Smart Tach for measuring fan speed of pulse-width modulated power supplies
- ^ ALERT outputs processor event notifications
- ^ TCRIT output critical temperature system shutdown
- The offset register allows the variety of thermal diodes to be adjusted
- 10-bit plus and 11-bit unsigned format with 1/8°C resolution
- The digital filter is enabled at an extended resolution of 1/32°C
- Resolve remote diode temperatures up to 255.875°C
- SMBus 2.0 compatible interface, with timeout and ARA
- LLP10 (QFN10) package
illustrate
Remote and local temperature sensors have been tested with integrated LM96163 fan control, including TruTherm BJT transistor remote diode sensor compensation technology. The LM96163 measures (1) its own temperature and (2) the temperature at which diodes are connected to transistors, such as the 2N3904, or thermal diodes commonly found in computer processors, graphics processing units (GPUs), and other ASICs. The LM96163's offset register corrects errors caused by different non-ideal other thermal diode factors.
The LM96163 also features an integrated, pulse-width modulated (PWM), open-drain fan control output. Fan speed depends on a combination of multiple remote temperature readings, lookup tables, and register settings. A 12-step lookup table (LUT) gives the user a transfer function to nonlinear fan speed versus temperature typically used for silent fan noise. A fully programmable ramp feature has been added to allow smooth transitions between LUT set points.
Main specifications
| ■ Remote temperature accuracy (including quantization error)
|
| LM96163 temperature
|
diode temperature
|
utmost mistake
|
| +25 to +85 °C
|
+55 to +105 °C
|
± 0.75 ° C
|
| +25 to +85 °C
|
+40 to +125 °C
|
± 1.5 ° C
|
| -40 to +25 °C
|
25 to 125 °C
|
± 3.0 ° C
|
| ■ Local temperature accuracy (including quantification error)
|
| LM96163 temperature 25°C to 125°C |
± 3.0 °C (max.)
|
| ■ Supply voltage
|
+3.0 V to +3.6 V
|
| ■ Supply Current (0.8Hz Conversion)
|
456μA (typical)
|
apply
- Processor thermal management
- Electronic testing and office equipment
- Industrial control
|