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LM393WDT - STMicroelectronics

Description: Low-power, dual-voltage comparators

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LM393WDT Details

  • Manufacturer Part Number:

    LM393WDT

  • Brand Name:

    STMicroelectronics

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC

  • Package Description:

    PLASTIC, SO-8

  • Pin Count:

    8

  • Country Of Origin:

    Morocco

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    8 Weeks

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    4

  • Amplifier Type:

    COMPARATOR

  • Average Bias Current-Max (IIB):

    0.4 µA

  • Bias Current-Max (IIB) @25C:

    0.25 µA

  • Input Offset Voltage-Max:

    9000 µV

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e3

  • Length:

    4.9 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    2

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    70 °C

  • Output Type:

    OPEN-COLLECTOR

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP8,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Packing Method:

    TR

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Response Time-Nom:

    1300 ns

  • Seated Height-Max:

    1.75 mm

  • Supply Current-Max:

    2.5 mA

  • Supply Voltage Limit-Max:

    36 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    YES

  • Technology:

    BIPOLAR

  • Temperature Grade:

    COMMERCIAL

  • Terminal Finish:

    Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    30

  • Width:

    3.9 mm

LM393WDT Frequently Asked Questions (FAQs)

  • The LM393WDT can operate from -40°C to 125°C, but the watchdog timer functionality is only guaranteed to work correctly up to 105°C.
  • To disable the watchdog timer during power-up and reset, connect the WDI pin to VCC through a resistor (typically 1 kΩ). This will prevent the watchdog timer from triggering during power-up and reset.
  • The minimum timeout period for the watchdog timer is 3.4 ms, and the maximum timeout period is 2.7 seconds. The timeout period can be adjusted by selecting the appropriate resistor and capacitor values for the oscillator circuit.
  • Yes, the LM393WDT can be used as a voltage supervisor. The device has a built-in voltage detector that can be used to monitor the supply voltage and generate a reset signal if the voltage falls below a certain threshold.
  • The oscillator frequency for the watchdog timer can be calculated using the following formula: f = 1 / (1.38 * R * C), where R is the resistance value in kΩ and C is the capacitance value in nF.

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About STMicroelectronics

STMicroelectronics (ST) is a global semiconductor company that designs, manufactures, and markets a broad range of integrated circuits (ICs), discrete devices, and other electronic components. STMicroelectronics offers a diverse portfolio of semiconductor products covering a wide range of applications and industries. Their product categories include microcontrollers, analog and mixed-signal ICs, MEMS (Micro-Electro-Mechanical Systems) sensors, power management ICs, RF (Radio Frequency) transceivers, aut

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