LM96163 - Remote Diode Digital Temperature Sensor with Integrated Fan Control and TruTherm BJT Transistor Beta Compensation Technology

LM96163 - Remote Diode Digital Temperature Sensor with Integrated Fan Control and TruTherm BJT Transistor Beta Compensation Technology from the PowerWise® Family

Datasheet	Packaging	Samples & Pricing	Eval. Boards	Reliability	Knowledge Base

Features

•	TruTherm BJT beta compensation technology supports 45nm, 65nm and 90nm Processor remote diodes
•	Factory trimmed for Intel® 45 nm processor thermal diodes
•	Accurately senses diode-connected 2N3904 transistors or thermal diodes on-board large processors or ASIC's
•	Accurately senses its own temperature
•	Integrated PWM fan speed control output supports high resolution at 22.5kHz frequency for 4-pin fans
•	Acoustic fan noise reduction with user-programmable 12-step Lookup Table
•	LUT transition fine resolution smoothing function
•	Tachometer input for measuring fan RPM
•	Smart-Tach modes for measuring RPM of fans with pulse-width-modulated power as shown in typical application
•	^ALERT output for processor event notification
•	^TCRIT output for critical temperature system shutdown
•	Offset register can adjust for a variety of thermal diodes
•	10-bit plus sign and 11-bit unsigned formats, with 1/8°C resolution
•	Extended resolution to 1/32°C when digital filter enabled
•	Resolves remote diode temperatures up to 255.875°C
•	SMBus 2.0 compatible interface, with TIMEOUT and ARA
•	LLP10 (QFN10) package

Key Specification

■ Remote Temp Accuracy (includes quantization error)
LM96163 Temp	Diode Temp	Max Error
+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 Temp Accuracy (includes quantization error)
LM96163 Temp 25°C to 125°C		±3.0°C (max)
■ Supply Voltage		+3.0 V to +3.6 V
■ Supply Current (0.8Hz Conversion)		456 µA (typ)

General Description

The LM96163 has remote and local temperature sensors with integrated fan control that includes TruTherm BJT transistor beta compensation technology for remote diode sensing. More...

Applications

•	Processor Thermal Management
•	Electronic Test and Office Equipment
•	Industrial Controls

Typical Application

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LM96163 Typical Application

Parameters Values

Temp Resolution 11-bit/0.125degC

Remote Diode Thermal Sensors 1

TruTherm(TM) Beta Compensation Yes

Fan Speed Inputs 1

Fan Control Output(s) 1

Fan Control Method LUT 12 point

Interrupt Outputs 2

Temperature Accuracy (+/-) 0.75 deg C

Temperature Min -40 deg C

Temperature Max 125 deg C

Interface Type SMBus

Supply Min 3.0 Volt

Supply Max 3.6 Volt

Quiescent Current 0.456 mA

Resolution 13 bits

Temperature Accuracy (+/-) 0.75 deg C

Automotive Yes

PowerWise Yes

Typical Performance

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Intel Processor Thermal Diode Performance Comparison

Block Diagram

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Datasheet

RoHS Compliance Information	Size in Kbytes	Date
LM96163 Remote Diode Digital Temperature Sensor with Integrated Fan Control and TruTherm ® BJT Transistor Beta Compensation Technology	799 Kbytes	26-Jun-08	Download

If you have trouble printing or viewing PDF file(s), see Printing Problems.

Package Availability, Models, Samples & Pricing

Part Number

Package

Factory Lead Time

Models

Samples &
Electronic
Orders

Budgetary Pricing

Std
Pack
Size

Package
Marking
Format

Type

Pins

Spec.

MSL
Rating

Peak
Reflow

RoHS
Report

CAD
Symbols

Weeks

Qty

$US each

LM96163EB

LM96163 Evaluation Board

Full production

N/A

$88.00

N/A

LM96163CISD

LLP

NOPB

260

RoHS

N/A

Full production

N/A

1K+

$1.40

reel
of
1000

ZXYTT
T63C

6 weeks

3000

LM96163CISDX

LLP

NOPB

260

RoHS

N/A

Full production

N/A

1K+

$1.40

reel
of
4500

ZXYTT
T63C

6 weeks

N/A

General Description

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. For the latest information contact hardware.monitor.team@nsc.com.

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.

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LM96163CISD	CMOS7	0	18406	0	0	1089000	4	309006723
LM96163CISDX	CMOS7	0	18406	0	0	1089000	4	309006723

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.

[Information as of 7-Nov-2009]