LM96000 - Hardware Monitor with Integrated Fan Control from the PowerWise® Family
Datasheet Packaging Samples & Pricing Eval. Boards Reliability Knowledge Base

Features
•2-wire, SMBus 2.0 compliant, serial digital interface
•8-bit ΣΔ ADC
•Monitors VCCP, 2.5V, 3.3 VSBY, 5.0V, and 12V motherboard/processor supplies
•Monitors 2 remote thermal diodes
•Programmable autonomous fan control based on temperature readings
•Noise filtering of temperature reading for fan control
•1.0°C digital temperature sensor resolution
•3 PWM fan speed control outputs
•Provides high and low PWM frequency ranges
•4 fan tachometer inputs
•Monitors 5 VID control lines
•24-pin TSSOP package
•XOR-tree test mode

Key Specification

Voltage Measurement Accuracy

±2% FS (max)

Resolution

8-bits, 1°C

Temperature Sensor Accuracy

±3°C (max)

Temperature Range

LM96000 Operational

0°C to +85°C

Remote Temp Accuracy

0°C to +125°C

Power Supply Voltage

+3.0V to +3.6V

Power Supply Current

0.53 mA

General Description

The LM96000, hardware monitor, has a two wire digital interface compatible with SMBus 2.0. More...


Applications


•Desktop PC
•Microprocessor based equipment
•(e.g. Base-stations, Routers, ATMs, Point of Sales)
  Typical Application
*click for larger image


ParametersValues
Temp Resolution 8-bit/1degC
Remote Diode Thermal Sensors 2
TruTherm(TM) Beta Compensation No
Analog Inputs 4, V+
ADC Resolution 8 bits
Fan Speed Inputs 4
Fan Control Output(s) 3 PWM, 22.5kHz
Fan Control Method Linear
VID Inputs 5
Dynamic VID VCCP Monitoring Undefined
Bidirectional PROCHOT Support Undefined
GPIOs Undefined
Interrupt Outputs Undefined
Reference Voltage Undefined
Temperature Accuracy (+/-) 2.5 deg C
Temperature Min 0 deg C
Temperature Max 125 deg C
Interface Type SMBus
Supply Min 3 Volt
Supply Max 3.6 Volt
Quiescent Current 0.53 mA
Resolution 8 bits
Temperature Accuracy (+/-) 3 deg C
Automotive Yes
PowerWise Yes


Typical Performance

*click for larger image


  Also Recommended
LM96194▲PI Fan Control And TruTherm(TM) Remote Diode Technology
Block Diagram
*click for larger image



Datasheet
RoHS Compliance Information Size in KbytesDate Click link below to Download
LM96000 Hardware Monitor with Integrated Fan Control 802
Kbytes		 23-Jul-08 Download

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


Package Availability, Models, Samples & Pricing
Part NumberPackageFactory Lead TimeModelsSamples &
Electronic
Orders		Budgetary PricingStd
Pack
Size		Package
Marking
Format
TypePinsSpec.MSL
Rating		Peak
Reflow		RoHS
Report		CAD
Symbols		WeeksQtyQty$US each
LM96000CIMTTSSOP24NOPB
STD		1
1		260
260		RoHS Download Full productionN/A
Samples
Buy Now 		1K+$1.95rail
of
61		NSUZXYTTE#
LM96000
CIMT
16 weeks500
LM96000CIMTXTSSOP24NOPB
STD		1
1		260
260		RoHS Download Full productionN/A
 
Buy Now 		1K+$1.95reel
of
2500		NSUZXYTTE#
LM96000
CIMT
6 weeks3000
LM96000EVALLM96000EVAL Evaluation BoardFull productionN/A
 
Buy Now 		1+$188.001-
N/AN/A

General Description

The LM96000, hardware monitor, has a two wire digital interface compatible with SMBus 2.0. Using an 8-bit ΣΔ ADC, the LM96000 measures:

 – the temperature of two remote diode connected transistors as well as its own die

 – the VCCP, 2.5V, 3.3VSBY, 5.0V, and 12V supplies (internal scaling resistors).

To set fan speed, the LM96000 has three PWM outputs that are each controlled by one of three temperature zones. High and low PWM frequency ranges are supported. The LM96000 includes a digital filter that can be invoked to smooth temperature readings for better control of fan speed. The LM96000 has four tachometer inputs to measure fan speed. Limit and status registers for all measured values are included.

Reliability Metrics

Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
LM96000CIMTCMOS70184060010890004309006723
LM96000CIMTXCMOS70184060010890004309006723

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 8-Nov-2009]