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NCP1079AAP100G - onsemi

Description: Integrated 700 V MOSFET with RDS(on) of 2.7 Ω; Current-Mode Fixed Frequency Operation (65 & 100 kHz) - 130 kHz for B version only; Peak Current: NCP1079A/B = 1,050mA; Skip-Cycle Operation at Low Peak Current; Dynamic Self-Supply (DSS); Auto-Recovery Output Short Circuit Protection with Timer-Based Detection; Frequency Foldback Operation; 300 µA No Load Power Consumption; Frequency Jittering (including during frequency foldback mode); Adjustable Brown-out Protection and OVP; Over Power Protection; 2nd Level

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NCP1079AAP100G - onsemi PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - PDIP−7_1
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NCP1079AAP100G - onsemi - 3D model - Dual-In-Line Packages - PDIP−7_1
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NCP1079AAP100G Details

  • Manufacturer Part Number:

    NCP1079AAP100G

  • Brand Name:

    onsemi

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    PDIP-7

  • Manufacturer Package Code:

    626A-01

  • Country Of Origin:

    Mainland China

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    onsemi

  • YTEOL:

    0

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • JESD-30 Code:

    R-PDIP-T7

  • JESD-609 Code:

    e3

  • Length:

    9.32 mm

  • Number of Functions:

    1

  • Number of Terminals:

    7

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    DIP

  • Package Equivalence Code:

    DIP7/8,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Seated Height-Max:

    4.45 mm

  • Supply Current-Max (Isup):

    15 mA

  • Supply Voltage-Nom (Vsup):

    12 V

  • Surface Mount:

    NO

  • Switcher Configuration:

    BUCK-BOOST

  • Switching Frequency-Max:

    110 kHz

  • Technology:

    MOS

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Width:

    7.62 mm

NCP1079AAP100G Frequently Asked Questions (FAQs)

  • A good PCB layout for the NCP1079AAP100G should include a solid ground plane, wide copper traces for power and ground, and a thermal relief pattern on the pads to ensure good heat dissipation. A 4-layer PCB with a thermal layer is recommended.
  • To ensure reliable startup and shutdown, make sure to follow the recommended soft-start and shutdown procedures outlined in the datasheet. This includes using a soft-start capacitor and a shutdown resistor to control the rise and fall times of the input voltage.
  • The maximum allowed input voltage ripple for the NCP1079AAP100G is 10% of the nominal input voltage. Exceeding this limit may affect the converter's stability and reliability.
  • While the NCP1079AAP100G is rated for operation up to 150°C, it's essential to consider the derating curves and thermal management strategies to ensure reliable operation in high-temperature environments. A heat sink or thermal interface material may be necessary to maintain a safe junction temperature.
  • To troubleshoot oscillations or instability issues, check the PCB layout for any signs of resonance or noise coupling. Ensure that the input and output capacitors are properly selected and placed, and that the feedback loop is properly compensated. You can also try adding a snubber network or a damping resistor to the output stage.

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NCP1079AAP100G Overview

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