LM63 Series

1 remote and local temperature sensor with fan control

Catalog

1 remote and local temperature sensor with fan control

Part	Voltage - Supply [Max]	Voltage - Supply [Min]	Accuracy	Supplier Device Package	Function	Package / Case	Package / Case [y]	Package / Case [x]	Operating Temperature [Max]	Mounting Type	Sensor Type	Sensing Temperature [Max]	Topology	Output Type
Texas Instruments LM63DIMA/NOPB	3.6 V	3 V	3 °C	8-SOIC	Fan Control Temp Monitor	8-SOIC	3.9 mm	0.154 in	85 °C	Surface Mount	Internal and External	125 °C	ADC (Sigma Delta) Comparator Fan Speed Control Register Bank	2-Wire SMBus
Texas Instruments LM63DIMAX/NOPB	3.6 V	3 V	3 °C	8-SOIC	Fan Control Temp Monitor	8-SOIC	3.9 mm	0.154 in	85 °C	Surface Mount	Internal and External	125 °C	ADC (Sigma Delta) Comparator Fan Speed Control Register Bank	2-Wire SMBus
Texas Instruments LM63DIMA	3.6 V	3 V	3 °C	8-SOIC	Fan Control Temp Monitor	8-SOIC	3.9 mm	0.154 in	85 °C	Surface Mount	Internal and External	125 °C	ADC (Sigma Delta) Comparator Fan Speed Control Register Bank	2-Wire SMBus
Texas Instruments LM63CIMA/NOPB	3.6 V	3 V	3 °C	8-SOIC	Fan Control Temp Monitor	8-SOIC	3.9 mm	0.154 in	85 °C	Surface Mount	Internal and External	125 °C	ADC (Sigma Delta) Comparator Fan Speed Control Register Bank	2-Wire SMBus
Texas Instruments LM63CIMA	3.6 V	3 V	3 °C	8-SOIC	Fan Control Temp Monitor	8-SOIC	3.9 mm	0.154 in	85 °C	Surface Mount	Internal and External	125 °C	ADC (Sigma Delta) Comparator Fan Speed Control Register Bank	2-Wire SMBus
Texas Instruments LM63DIMAX	3.6 V	3 V	3 °C	8-SOIC	Fan Control Temp Monitor	8-SOIC	3.9 mm	0.154 in	85 °C	Surface Mount	Internal and External	125 °C	ADC (Sigma Delta) Comparator Fan Speed Control Register Bank	2-Wire SMBus
Texas Instruments LM63CIMAX	3.6 V	3 V	3 °C	8-SOIC	Fan Control Temp Monitor	8-SOIC	3.9 mm	0.154 in	85 °C	Surface Mount	Internal and External	125 °C	ADC (Sigma Delta) Comparator Fan Speed Control Register Bank	2-Wire SMBus
Texas Instruments LM63CIMAX/NOPB	3.6 V	3 V	3 °C	8-SOIC	Fan Control Temp Monitor	8-SOIC	3.9 mm	0.154 in	85 °C	Surface Mount	Internal and External	125 °C	ADC (Sigma Delta) Comparator Fan Speed Control Register Bank	2-Wire SMBus

Catalog

1 remote and local temperature sensor with fan control

Key Features

• Accurately Senses Diode-Connected 2N3904 Transistors or Thermal Diodes On Board Large Processors or ASICsAccurately Senses its Own TemperatureFactory Trimmed for Intel Pentium 4 and Mobile Pentium 4 Processor-M Thermal DiodesIntegrated PWM Fan Speed Control OutputAcoustic Fan Noise Reduction With User-Programmable 8-Step Lookup TableMulti-Function, User-Selectable Pin for EitherALERTOutput, or Tachometer Input, FunctionsTachometer Input for Measuring Fan RPMSmart-Tach Modes for Measuring RPM of Fans With Pulse-Width-Modulated Power as Shown in Typical ApplicationOffset Register can Adjust for a Variety of Thermal Diodes10 Bit Plus Sign Remote Diode Temperature Data Format, With 0.125°C ResolutionSMBus 2.0 Compatible Interface, Supports TIMEOUTLM86-Compatible PinoutLM86-Compatible Register Set8-Pin SOIC PackageIntel is a trademark of Texas Instruments. Pentium is a trademark of Texas Instruments. All trademarks are the property of their respective owners.Accurately Senses Diode-Connected 2N3904 Transistors or Thermal Diodes On Board Large Processors or ASICsAccurately Senses its Own TemperatureFactory Trimmed for Intel Pentium 4 and Mobile Pentium 4 Processor-M Thermal DiodesIntegrated PWM Fan Speed Control OutputAcoustic Fan Noise Reduction With User-Programmable 8-Step Lookup TableMulti-Function, User-Selectable Pin for EitherALERTOutput, or Tachometer Input, FunctionsTachometer Input for Measuring Fan RPMSmart-Tach Modes for Measuring RPM of Fans With Pulse-Width-Modulated Power as Shown in Typical ApplicationOffset Register can Adjust for a Variety of Thermal Diodes10 Bit Plus Sign Remote Diode Temperature Data Format, With 0.125°C ResolutionSMBus 2.0 Compatible Interface, Supports TIMEOUTLM86-Compatible PinoutLM86-Compatible Register Set8-Pin SOIC PackageIntel is a trademark of Texas Instruments. Pentium is a trademark of Texas Instruments. All trademarks are the property of their respective owners.

Description

The LM63 is a remote diode temperature sensor with integrated fan control. The LM63 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 LM63 remote temperature sensor's accuracy is factory trimmed for the series resistance and 1.0021 non-ideality of the Intel 0.13 µm Pentium 4 and Mobile Pentium 4 Processor-M thermal diode. The LM63 has an offset register to correct for errors caused by different non-ideality factors of other thermal diodes. The LM63 also features an integrated, pulse-width-modulated (PWM), open-drain fan control output. Fan speed is a combination of the remote temperature reading, the lookup table and the register settings. The 8-step Lookup Table enables the user to program a non-linear fan speed vs. temperature transfer function often used to quiet acoustic fan noise. The LM63 is a remote diode temperature sensor with integrated fan control. The LM63 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 LM63 remote temperature sensor's accuracy is factory trimmed for the series resistance and 1.0021 non-ideality of the Intel 0.13 µm Pentium 4 and Mobile Pentium 4 Processor-M thermal diode. The LM63 has an offset register to correct for errors caused by different non-ideality factors of other thermal diodes. The LM63 also features an integrated, pulse-width-modulated (PWM), open-drain fan control output. Fan speed is a combination of the remote temperature reading, the lookup table and the register settings. The 8-step Lookup Table enables the user to program a non-linear fan speed vs. temperature transfer function often used to quiet acoustic fan noise.