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LM94CIMTX/NOPB Hardware Monitor with PI Loop Fan Control for Server Management TSSOP56 spot stock
LM94CIMTX/NOPB Hardware Monitor
Product Descriptions
The LM94 hardware monitor has a two wire digitalinterface compatible with SMBus 2.0. Using a ΣΔADC, the LM94 measures the temperature of fourremote diode connected transistors as well as its owndie and 16 power supply voltages . The LM94 hasnew TruTherm technology that supports precisionthermal diode measurements of processors on submicron processes .
Product Features
• 8-bit ΣΔADC
• Monitors 16 Power Supplies
• Monitors 4 Remote Thermal Diodes and 2 LM60
• New TruTherm Technology Support for Precision Thermal Diode Measurements
• Internal Ambient Temperature Sensing
• Programmable Autonomous Fan Control Based on Temperature Readings with Fan Boost Support
• Fan Boost Support on Tachometer Limit Error Event
• Fan Control Based on 13-step Lookup Table or PI Control Loop or Combination of Both
• PI Fan Control Loop Supports Tcontrol
• Temperature Reading Digital Filters
• 0.5°C digital Temperature Sensor Resolution
• 0.0625°C Filtered Temperature Resolution for Fan Control
• 2 PWM Fan Speed Control Outputs
• 4 Fan Tachometer Inputs
• Dual Processor Thermal Throttling (PROCHOT) Monitoring
• Dual Dynamic VID Monitoring (6/7 VIDs per processor) Supports VRD10.2/11
• 8 General Purpose I/Os:
– 4 Can be Configured as Fan tachometer Inputs
– 2 Can be Configured to Connect to Processor THERMTRIP
– 2 are Standard GPIOs that Could be Used to Monitor IERR Signal
• 2 General Purpose Inputs that Can be Used to Monitor the 7th VID Signal for VRD11
• Limit Register Comparisons of all Monitored Values
Product Applications
• Servers
• Workstations
• Multi-processor based equipment
Product Specification
| Attribute | Attribute value |
| ANSM-Part# | ANSM-LM94CIMTX/NOPB |
| Category | Integrated Circuits (ICs) |
| Power Management (PMIC) | |
| Thermal Management | |
| Manufacturer | - |
| Series | TruTherm™ |
| Packaging | Tape & Reel (TR) |
| Part Status | Active |
| Function | Hardware Monitor |
| Sensor Type | Internal and External |
| Sensing Temperature | 0°C ~ 125°C |
| Accuracy | ±2.5°C(Max) |
| Topology | ADC (Sigma Delta), Comparator, Fan Control, Multiplexer, Register Bank |
| Output Type | 2-Wire Serial, I2C/SMBUS |
| Output Alarm | No |
| Output Fan | Yes |
| Voltage - Supply | 3V ~ 3.6V |
| Operating Temperature | 0°C ~ 85°C |
| Mounting Type | Surface Mount |
| Package / Case | 56-TFSOP (0.240", 6.10mm Width) |
| Supplier Device Package | 56-TSSOP |
| Base Product Number | LM94 |
Product Photos

For more product information, please download the PDF