LM96194 Series

±2°C quad remote and local temperature sensor with beta comp, fan ctrl, hw & supply mtr in a QFN

Catalog

±2°C quad remote and local temperature sensor with beta comp, fan ctrl, hw & supply mtr in a QFN

Part	Topology	Accuracy	Voltage - Supply [Max]	Voltage - Supply [Min]	Supplier Device Package	Mounting Type	Sensor Type	Function	Output Type	Package / Case	Sensing Temperature [Max]	Sensing Temperature [Min]	Operating Temperature [Max]	Operating Temperature [Min]
Texas Instruments LM96194CISQX	ADC (Sigma Delta) Comparator Fan Control Multiplexer Register Bank	2.5 °C	3.6 V	3 V	48-WQFN (7x7)	Surface Mount	Internal and External	Hardware Monitor	2-Wire SMBus	48-WFQFN Exposed Pad	125 °C	-40 °C	85 °C	-40 °C
Texas Instruments LM96194CISQ	ADC (Sigma Delta) Comparator Fan Control Multiplexer Register Bank	2.5 °C	3.6 V	3 V	48-WQFN (7x7)	Surface Mount	Internal and External	Hardware Monitor	2-Wire SMBus	48-WFQFN Exposed Pad	125 °C	-40 °C	85 °C	-40 °C
Texas Instruments LM96194CISQX/NOPB	ADC (Sigma Delta) Comparator Fan Control Multiplexer Register Bank	2.5 °C	3.6 V	3 V	48-WQFN (7x7)	Surface Mount	Internal and External	Hardware Monitor	2-Wire SMBus	48-WFQFN Exposed Pad	125 °C	-40 °C	85 °C	-40 °C

Catalog

±2°C quad remote and local temperature sensor with beta comp, fan ctrl, hw & supply mtr in a QFN

Key Features

• ΣΔ ADC ArchitectureMonitors 9 Power SuppliesMonitors 4 Remote Thermal Diodes and 2 LM60New TruTherm Technology Support for Precision Thermal Diode MeasurementsInternal Ambient Temperature SensingProgrammable Autonomous Fan Control Based on Temperature Readings with Fan Boost SupportFan Boost Support on Tachometer Limit Error EventFan Control Based on 13-step Lookup Table or PI Control Loop or Combination of BothPI Fan Control Loop Supports TcontrolTemperature Reading Digital Filters0.5°C Digital Temperature Sensor Resolution0.0625°C Filtered Temperature Resolution for Fan Control2 PWM Fan Speed Control Outputs4 Fan Tachometer InputsProcessor Thermal Throttling (PROCHOT) MonitoringDynamic VID Monitoring (6/7 VIDs per processor) Supports VRD10.2/118 General Purpose I/Os:4 Can be Configured as Fan Tachometer Inputs2 Can be Configured to Connect to ProcessorTHERMTRIP2 are Standard GPIOs that Could be Used to MonitorIERRSignalA General Purpose Inputs That can be Used to Monitor the 7th VID Signal for VRD11Limit Register Comparisons of all Monitored Values2-wire Serial Digital Interface, SMBus 2.0 CompliantSupports Byte/block Read and WriteSelectable Slave Address (Tri-level Pin Selects 1 of 3 Possible Addresses)ALERTOutput Supports Interrupt or Comparator ModesWQFN-48 PackageXOR-tree Test ModeKey SpecificationsVoltage Measurement Accuracy: ±2% FS (max)Temperature Resolution: 9-bits, 0.5°CTemperature Sensor Accuracy: ±2.5 °C (max)Temperature Range:LM96194 Operational: -40°C to +85°CRemote Temp Accuracy: -40°C to +125°CPower Supply Voltage: +3.0V to +3.6VPower Supply Current: 1.6 mAAll trademarks are the property of their respective owners. Intel is a trademark of Texas Instruments.ΣΔ ADC ArchitectureMonitors 9 Power SuppliesMonitors 4 Remote Thermal Diodes and 2 LM60New TruTherm Technology Support for Precision Thermal Diode MeasurementsInternal Ambient Temperature SensingProgrammable Autonomous Fan Control Based on Temperature Readings with Fan Boost SupportFan Boost Support on Tachometer Limit Error EventFan Control Based on 13-step Lookup Table or PI Control Loop or Combination of BothPI Fan Control Loop Supports TcontrolTemperature Reading Digital Filters0.5°C Digital Temperature Sensor Resolution0.0625°C Filtered Temperature Resolution for Fan Control2 PWM Fan Speed Control Outputs4 Fan Tachometer InputsProcessor Thermal Throttling (PROCHOT) MonitoringDynamic VID Monitoring (6/7 VIDs per processor) Supports VRD10.2/118 General Purpose I/Os:4 Can be Configured as Fan Tachometer Inputs2 Can be Configured to Connect to ProcessorTHERMTRIP2 are Standard GPIOs that Could be Used to MonitorIERRSignalA General Purpose Inputs That can be Used to Monitor the 7th VID Signal for VRD11Limit Register Comparisons of all Monitored Values2-wire Serial Digital Interface, SMBus 2.0 CompliantSupports Byte/block Read and WriteSelectable Slave Address (Tri-level Pin Selects 1 of 3 Possible Addresses)ALERTOutput Supports Interrupt or Comparator ModesWQFN-48 PackageXOR-tree Test ModeKey SpecificationsVoltage Measurement Accuracy: ±2% FS (max)Temperature Resolution: 9-bits, 0.5°CTemperature Sensor Accuracy: ±2.5 °C (max)Temperature Range:LM96194 Operational: -40°C to +85°CRemote Temp Accuracy: -40°C to +125°CPower Supply Voltage: +3.0V to +3.6VPower Supply Current: 1.6 mAAll trademarks are the property of their respective owners. Intel is a trademark of Texas Instruments.

Description

The LM96194 hardware monitor has a two wire digital interface compatible with SMBus 2.0. Using a ΣΔ ADC, the LM96194 measures the temperature of four remote diode connected transistors as well as its own die and 9 power supply voltages. The LM96194 has new TruTherm technology that supports precision thermal diode measurements of processors on sub-micron processes. To set fan speed, the LM96194 has two PWM outputs that are each controlled by up to six temperature zones. The fan-control algorithm can be based on a lookup table, PI (proportional/integral) control loop, or a combination of both. The LM96194 includes digital filters that can be invoked to smooth temperature readings for better control of fan speed such that acoustical noise is minimized. The LM96194 has four tachometer inputs to measure fan speed. Limit and status registers for all measured values are included. The LM96194 includes most of the features of the LM94, dual CPU motherboard server management ASIC, such as measurement and control support for dynamic Vccp monitoring for VRD10/11 andPROCHOTbut is targeted for single processor systems. The LM96194 hardware monitor has a two wire digital interface compatible with SMBus 2.0. Using a ΣΔ ADC, the LM96194 measures the temperature of four remote diode connected transistors as well as its own die and 9 power supply voltages. The LM96194 has new TruTherm technology that supports precision thermal diode measurements of processors on sub-micron processes. To set fan speed, the LM96194 has two PWM outputs that are each controlled by up to six temperature zones. The fan-control algorithm can be based on a lookup table, PI (proportional/integral) control loop, or a combination of both. The LM96194 includes digital filters that can be invoked to smooth temperature readings for better control of fan speed such that acoustical noise is minimized. The LM96194 has four tachometer inputs to measure fan speed. Limit and status registers for all measured values are included. The LM96194 includes most of the features of the LM94, dual CPU motherboard server management ASIC, such as measurement and control support for dynamic Vccp monitoring for VRD10/11 andPROCHOTbut is targeted for single processor systems.