LM80CIMTX-3/NOPB by Texas Instruments | Processor Supervisory | Avnet ASIA
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LM80CIMTX-3/NOPB

Texas Instruments

Processor Supervisor 24-Pin TSSOP T/R

Manufacturer Part #: LM80CIMTX-3/NOPB

Alternate Part #: LM80CIMTX-3/NOPB


legend RoHS Compliant

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Information

The LM80 provides 7 positive voltage inputs, temperature measurement, fan speed measurement, and hardware monitoring on an I2C interface. The LM80 performs WATCHDOG comparisons of all measured values and an open-drain interrupt output becomes active when any values exceed programmed limits. A Chassis Intrusion input is provided to monitor and reset an external circuit designed to latch a chassis intrusion event.

The LM80 is especially suited to interface to both linear and digital temperature sensors. The 10 mV LSB and 2.56 volt input range is ideal for accepting inputs from a linear sensor such as the LM50. The BTI\ is used as an input from either digital or thermostat sensors such as LM75 and LM56.

The LM80's 2.8V to 5.75V supply voltage range, low supply current, and I2C interface make it ideal for a wide range of applications. These include hardware monitoring and protection applications in personal computers, electronic test equipment, and office electronics.

 

Key Features

  • Temperature Sensing
  • 7 Positive Voltage Inputs
  • 2 Programmable Fan Speed Monitoring Inputs
  • 10 mV LSB and 2.56V Input Range Accepts Outputs From Linear Temperature Sensors Such as the LM50
  • Chassis Intrusion Detector Input
  • WATCHDOG Comparison of all Monitored Values
  • Separate Input to Show Status in Interrupt Status Register of Additional External Temperature Sensors such as the LM56 or LM75
  • I2C Serial Bus Interface Compatibility
  • Shutdown Mode to Minimize Power Consumption
  • Programmable RST_OUT/OS pin: RST_OUT Provides a Reset Output; OS Provides an Interrupt Output Activated by an Overtemperature Shutdown Event
  • Voltage Monitoring Error ±1% (Max)
  • Temperature Error (−25°C to +125°C) ±3°C (Max)
  • Supply Voltage Range 2.8 to 5.75 V
  • Supply Current: Operating 0.2 mA typ
  • Supply Current: Shutdown 15 µA typ
  • ADC Resolution 8 Bits
  • Temperature Resolution 0.5ºC
  • Technical Attributes

    Description
    Value
    Find similar Parts
    Max Processing Temp
    260
    Lead Finish
    Matte Tin
    Maximum Operating Supply Voltage
    5.75 V
    Chip Enable Signals
    No
    Output Driver
    Active High/Active Low/Open Drain
    Operating Temperature
    -25 to 125 °C
    Minimum Operating Supply Voltage
    2.8 V
    Mounting
    Surface Mount
    Power Fail Detection
    No
    Watchdog Timer
    Yes
    Maximum Supply Current
    200 uA
    Manual Reset
    No
    Battery Backup Switching
    No

    ECCN / UNSPSC

    Description
    Value
    ECCN:
    EAR99
    HTSN:
    8542.39.00.00
    UNSPSC:
    32101600
    UNSPSC VERSION:
    V15.1101

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