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LM2903WDT - STMicroelectronics

Description: Low-power, dual-voltage comparator

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LM2903WDT - STMicroelectronics PCB footprint - Small Outline Packages - Small Outline Packages - 8-Pin SO_2022
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LM2903WDT - STMicroelectronics  - 3D model - Small Outline Packages - 8-Pin SO_2022
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LM2903WDT Details

  • Manufacturer Part Number:

    LM2903WDT

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC

  • Package Description:

    ROHS COMPLIANT, MICRO, PLASTIC, SOP-8

  • Pin Count:

    8

  • Country Of Origin:

    Mainland China

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    8 Weeks

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    8

  • Amplifier Type:

    COMPARATOR

  • Average Bias Current-Max (IIB):

    0.4 µA

  • Bias Current-Max (IIB) @25C:

    0.25 µA

  • Input Offset Voltage-Max:

    15000 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:

    125 °C

  • Operating Temperature-Min:

    -40 °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:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

  • Width:

    3.9 mm

LM2903WDT Frequently Asked Questions (FAQs)

  • The WDIN pin is used to reset the watchdog timer. When the WDIN pin is driven high, the watchdog timer is reset, and the countdown starts again from the beginning.
  • The watchdog timer period is set by connecting a resistor and capacitor between the REXT and CEXT pins. The formula to calculate the period is: T = 1.4 * REXT * CEXT. The recommended values for REXT and CEXT are 10 kΩ and 100 nF, respectively.
  • When the watchdog timer expires, the WDO pin goes high, and the reset signal is asserted, which resets the microcontroller or system.
  • Yes, the LM2903WDT can operate with a power supply voltage as low as 2.5V, making it suitable for 3.3V systems.
  • Yes, the LM2903WDT can operate with a power supply voltage up to 5.5V, making it compatible with 5V systems.

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LM2903WDT Overview

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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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