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NCP1079ABP100G - 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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NCP1079ABP100G Details

  • Manufacturer Part Number:

    NCP1079ABP100G

  • 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

  • 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 Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Width:

    7.62 mm

NCP1079ABP100G Frequently Asked Questions (FAQs)

  • A good PCB layout for the NCP1079ABP100G should include a solid ground plane, wide power traces, and a thermal relief pattern under the device to facilitate heat dissipation. A minimum of 2oz copper thickness is recommended.
  • To ensure reliable startup, ensure that the input voltage rises monotonically and that the input capacitor is properly sized to handle the inrush current. A soft-start circuit can also be implemented to reduce the inrush current.
  • The maximum allowed voltage on the EN pin is 6V. Exceeding this voltage may damage the device.
  • While it is possible to use a different inductor value, it is not recommended as it may affect the converter's performance and stability. The recommended inductor value is carefully selected to ensure optimal performance.
  • To troubleshoot oscillations or instability, check the PCB layout for noise coupling, ensure that the input and output capacitors are properly sized, and verify that the inductor is properly selected. Also, check for any voltage drops or noise on the EN pin.

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NCP1079ABP100G Overview

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