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TI LM63CIMAX/NOPB product image
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TI LM63CIMAX/NOPB

Manufacturer
MPN
LM63CIMAX/NOPB
LCSC Part #
C2649286
Packaging
SOIC-8
Customer #
Key Attributes
Remote Diode Digital Temperature Sensor with Integrated Fan Control
Datasheetpdf iconTI LM63CIMAX/NOPB
RoHS Compliance1 documents available
Alternative Parts4
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QtyUnit Price(Reference Only)Total Amount
1+$ 3.2681$ 3.27
10+$ 3.1868$ 31.87
30+$ 3.1316$ 93.95
100+$ 3.0779$ 307.79
Standard Packaging2500/Full Reel
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Thermal Management
ManufacturerTI
PackagingSOIC-8
InterfaceSMBus
Voltage - Supply3V~3.6V
Operating Temperature-
Standby Current300uA
Temperature Conversion Time31.25ms
FeaturesFactory temperature calibration;Multi-channel temperature sensing;Temperature threshold monitoring;Low-power standby;On-chip digital filtering/averaging;Self-diagnosis function;Configurable temperature output;Hardware comparator / independent temperature control output

Introduction

AI Translation

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 nonideality factors of other thermal diodes. The LM63 also features an integrated, pulse-widthmodulated (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.

Features

AI Translation
  • Accurately Senses Diode-Connected 2N3904 Transistors or Thermal Diodes On Board Large Processors or ASICs
  • Accurately Senses its Own Temperature
  • Factory Trimmed for Intel® Pentium® 4 and Mobile Pentium 4 Processor-M Thermal Diodes
  • Integrated PWM Fan Speed Control Output
  • Acoustic Fan Noise Reduction With UserProgrammable 8-Step Lookup Table
  • Multi-Function, User-Selectable Pin for Either ALERT Output, or Tachometer Input, Functions
  • Tachometer Input for Measuring Fan RPM
  • Smart-Tach Modes for Measuring RPM of Fans With Pulse-Width-Modulated Power as Shown in Typical Application
  • Offset Register can Adjust for a Variety of Thermal Diodes
  • 10 Bit Plus Sign Remote Diode Temperature Data Format, With 0.125℃ Resolution
  • SMBus 2.0 Compatible Interface, Supports TIMEOUT
  • LM86-Compatible Pinout
  • LM86-Compatible Register Set
  • 8-Pin SOIC Package

Applications

AI Translation
  • Computer Processor Thermal Management (Laptop, Desktop, Workstations, Servers)
  • Graphics Processor Thermal Management
  • Electronic Test Equipment
  • Projectors
  • Office Equipment
  • Industrial Controls

Alternative Parts

MPNManufacturerPackagingAvailabilityUnit Price
LM86CIMX/NOPBTISOIC-81$ 3.8342
LM63DIMAX/NOPBTISOIC-80$ 2.6411
LM89CIMX/NOPBTISOIC-80$ 4.5202
MAX6657MSA+TMAXIMSOIC-80$ 7.546