LM81CIMTX-3/NOPB ,Serial Interface ACPI-Compatible Microprocessor System Hardware Monitor 24-TSSOP -40 to 125FEATURES APPLICATIONS2• Temperature Sensing • System Thermal and Hardware Monitoring forServers and ..
LM8261M5 NOPB ,RRIO, High Output Current & Unlimited Cap Load Op Amp in SOT23-5 5-SOT-23 -40 to 85 SNOS469J–APRIL 2000–REVISED JANUARY 20155 Pin Configuration and Functions5-Pin SOT-23Package DBV(T ..
LM8261M5X NOPB ,RRIO, High Output Current & Unlimited Cap Load Op Amp in SOT23-5 5-SOT-23 -40 to 85Features... 17.3 Estimating the Output Voltage Swing... 222 Applications..... 17.4 TFT Applications ..
LM8261M5X/NOPB ,RRIO, High Output Current & Unlimited Cap Load Op Amp in SOT23-5 5-SOT-23 -40 to 85Block Diagram and Operational Description.. 19Information..... 274 Revision HistoryChanges from Rev ..
LM8261M5X/NOPB ,RRIO, High Output Current & Unlimited Cap Load Op Amp in SOT23-5 5-SOT-23 -40 to 85Features 3 DescriptionThe LM8261 is a Rail-to-Rail input and output Op1• (V = 5 V, T = 25°C, Typica ..
LM8262MM NOPB ,RRIO, High Output Current & Unlimited Cap Load Op Amp in MSOP 8-VSSOP -40 to 85Features 3 DescriptionThe LM8262 is a Rail-to-Rail input and output Op1(V = 5V, T = 25°C, Typical V ..
LP62S2048U-70LLI , 256K X 8 BIT LOW VOLTAGE CMOS SRAM
LP6-PWN1-03-N1 , SMD LED
LP750 , 0.5 W POWER PHEMT
LP750SOT89 , LOW NOISE, HIGH LINEARITY PACKAGED PHEMT
LP7510 , PC POWER SUPPLY SUPERVISORS
LP7510 , PC POWER SUPPLY SUPERVISORS
LM81BIMT-3/NOPB-LM81CIMTX-3/NOPB
Serial Interface ACPI-Compatible Microprocessor System Hardware Monitor 24-TSSOP -40 to 125
LM81
www.ti.com SNAS011E–JUNE 1999–REVISED FEBRUARY 2002
LM81 Serial Interface ACPI-Compatible Microprocessor System Hardware Monitor
Checkfor Samples: LM81
1FEATURES APPLICATIONS Temperature Sensing • System Thermal and Hardware Monitoring for
Servers and PCs• 6 Positive Voltage Inputs with Scaling
Resistorsto Monitor +5V, +12V, +3.3V, +2.5V, • Office Electronics
Vccp Power Supplies Directly • Electronic Test Equipment and 8-Bit DAC Output for Controlling Fan Speed Instrumentation 2 Fan Speed Monitoring Inputs DESCRIPTION• Chassis Intrusion Detector Input The LM81isa highly integrated data acquisition
• WATCHDOG Comparisonofall Monitored system for hardware monitoringof servers, Personal
Values Computers, or virtually any microprocessor-based
SMBus 1.0 (LM81C) and 1.1 (LM81B) Serial system.Ina PC, the LM81 can be usedto monitor
power supply voltages, temperatures, and fan
Bus Interface Compatibilityspeeds. Actual values for these inputs canbe readat
• LM81B has Improved Voltage Monitoring any time. Programmable WATCHDOG limitsin the
Accuracy LM81 activatea fully programmable and maskable
• VID0-VID4 Monitoring Inputs interrupt system with two outputs (INT and T_CRIT_).
The LM81 has an on-chip digital output temperature
KEY SPECIFICATIONS sensor with 9-bitor 12-bit resolution,a6 analog input
ADC with 8-bit resolution and an 8-bit DAC. Two fan
• Voltage Monitoring Error: +2%or ±1.2% (max) tachometer outputs can be measured with the LM81’s
• Temperature Error FAN1 and FAN2 inputs. The DAC, witha0to 1.25V
−40˚Cto +125˚C± 3˚C (max) output voltage range, can be used for fan speed
control. Additional inputs are provided for Chassis
• Supply Voltage Range: 2.8Vto 3.8V Intrusion detection circuits, and VID monitor inputs.
• Supply Current: 0.4 mA (typ) The LM81 has a Serial Bus interface that is
ADC and DAC Resolution:8 Bits compatible with SMBus. Serial Bus Timing Diagram
Temperature Resolution: 0.5˚C
TYPICAL APPLICATION
