Datasheets
Other Technical Documents
Part Number(s) (NSID) | Description | Availability | Current Reported Stock | Budgetary Pricing | Pack Size |
LM63EVAL/NOPB

| LM63 - ±1°C/±3°C Accurate Remote Diode Digital Temperature Sensor with Integrated Fan Control | Full production Lead Free (RoHS)
|
| $88.00 each | 1 |
| 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 LM63EVAL is its evaluation board.
Features:
- Accurately senses diode-connected 2N3904 transistors or thermal diodes on-board large processors or ASIC's
- 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 User-programmable 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°C resolution
- SMBus 2.0 compatible interface, supports TIMEOUT
- LM86-compatible pinout
- LM86-compatible register set
- LM63CIM-16 with −16°C offset remote reading to allow measurement of remote temperatures > 127.875°C
- 8-pin SOIC package
Contents:
- Evaluation Board
- User's guide
- Thank you letter
- Evaluation board license agreement
|
National Semiconductor follows the provisions of the Product Stewardship Guide for Customers
(
CSP-9-111C1)
and Banned Substances and Materials of Interest Specification
(
CSP-9-111S2)
for regulatory environmental compliance. Details may be found at:
www.national.com/en/packaging/greennopb.html.
Lead free products are RoHS compliant.
Lead Free product status is available through the search tool located
here
All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.
Moisture Sensitivity Level Data for LM63.
A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.
National's certificate of product compliance for LM63 is located at RoHS Status.
Reliability Metrics
| Part Number |
Process |
EFR Reject |
EFR Sample Size |
PPM |
LTA Rejects |
LTA Device Hours |
FITS |
MTTF (Hours) |
|
LM63CIMA | CMOS7 | 0 | 21301 | 0 | 0 | 1584000 | 3 | 449464325
|
|
LM63CIMAX | CMOS7 | 0 | 21301 | 0 | 0 | 1584000 | 3 | 449464325
|
|
LM63DIMA | CMOS7 | 0 | 21301 | 0 | 0 | 1584000 | 3 | 449464325
|
|
LM63DIMAX | CMOS7 | 0 | 21301 | 0 | 0 | 1584000 | 3 | 449464325
|
Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR.
The Long Term Failure Rates were calculated
at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress
temperature of 150°C to an application temperature of 55°C.
For more information on Reliability Metrics, please click
here.
All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.
Moisture Sensitivity Level Data for LM63.
A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.
National's certificate of product compliance for LM63 is located at RoHS Status.