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KA2803BDTF - onsemi

Description: Low power consumption: 5mW, 100V/200V; Built-in voltage regulator; High-gain differential amplifier; 0.4mA output current pulse to trigger SCRs; Low external part count; High noise immunity, large surge margin; Super temperature characteristic of input sensitivity; Wide operating temperature range:TA= -25°C to +100°C; Operation from 12V to 20V input

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KA2803BDTF - onsemi - PCB symbol
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PCB Footprints
KA2803BDTF - onsemi PCB footprint - Small Outline Packages - Small Outline Packages - 8-Pin SOIC-311
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KA2803BDTF - onsemi - 3D model - Small Outline Packages - 8-Pin SOIC-311
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KA2803BDTF Details

  • Manufacturer Part Number:

    KA2803BDTF

  • Brand Name:

    onsemi

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC-8

  • Package Description:

    LEAD FREE, SOP-8

  • Manufacturer Package Code:

    751EB

  • Country Of Origin:

    Thailand

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    14 Weeks

  • Manufacturer:

    onsemi

  • YTEOL:

    0

  • Additional Feature:

    BUILT-IN VOLTAGE REGULATOR

  • Adjustable Threshold:

    NO

  • Analog IC - Other Type:

    VOLTAGE DETECTOR

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e4

  • Length:

    4.9 mm

  • Moisture Sensitivity Level:

    1

  • Number of Channels:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    80 °C

  • Operating Temperature-Min:

    -20 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP8,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.8 mm

  • Supply Current-Max (Isup):

    0.58 mA

  • Supply Voltage-Max (Vsup):

    20 V

  • Supply Voltage-Min (Vsup):

    12 V

  • Supply Voltage-Nom (Vsup):

    16 V

  • Surface Mount:

    YES

  • Temperature Grade:

    COMMERCIAL EXTENDED

  • Terminal Finish:

    Nickel/Palladium/Gold (Ni/Pd/Au)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    3.9 mm

KA2803BDTF Frequently Asked Questions (FAQs)

  • A good PCB layout for the KA2803BDTF involves keeping the input and output traces separate, using a solid ground plane, and placing the input and output capacitors close to the IC. Additionally, it's recommended to use a shielded inductor and to keep the switching node (pin 3) away from sensitive analog circuits.
  • To ensure the KA2803BDTF operates within its SOA, monitor the input voltage, output current, and junction temperature. Make sure the input voltage is within the recommended range (4.75V to 40V), the output current is within the maximum rating (3A), and the junction temperature is below the maximum rating (150°C).
  • The recommended input capacitor value for the KA2803BDTF is 10uF to 22uF, with a voltage rating of at least 50V. A low-ESR ceramic or film capacitor is recommended, such as the X7R or X5R dielectric type.
  • The output voltage of the KA2803BDTF can be calculated using the formula: Vout = (R1 / R2) * (Vin - Vref), where R1 and R2 are the feedback resistors, Vin is the input voltage, and Vref is the reference voltage (2.5V).
  • The enable pin (EN) on the KA2803BDTF is used to turn the regulator on or off. When the EN pin is high, the regulator is enabled, and when it's low, the regulator is disabled. This pin can be used to implement power sequencing or to reduce power consumption in standby mode.

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KA2803BDTF Overview

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