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NCP1239KD65R2G - onsemi

Description: 64-ms timer-based short-circuit protection with auto-recovery or latched operation; Pre-short ready; Latched OVP on Vcc (NCP1239 A & B versions); Latched OVP/OTP input for improved robustness; 35-V Vcc operation ; +500 mA/ -500 mA peak source/sink drive capability; Internal thermal shutdown; Extremely low no-load standby power; Pin-to-pin compatible with the existing NCP1236/1247 series; Fixed-frequency 65-kHz or 100-kHz current-mode control operation; Frequency foldback down to 26 kHz and skip mode; Adjust

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NCP1239KD65R2G Details

  • Manufacturer Part Number:

    NCP1239KD65R2G

  • Brand Name:

    onsemi

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Not Recommended

  • Part Package Code:

    SOIC-7

  • Package Description:

    SOIC-8/7

  • Manufacturer Package Code:

    751U

  • Country Of Origin:

    Philippines

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    24 Weeks

  • Date Of Intro:

    2017-11-03

  • Manufacturer:

    onsemi

  • YTEOL:

    3

  • Additional Feature:

    ALSO CONTAIN frequency modulation

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT/VOLTAGE-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    35 V

  • Input Voltage-Min:

    9.4 V

  • Input Voltage-Nom:

    11 V

  • JESD-30 Code:

    R-PDSO-G7

  • JESD-609 Code:

    e3

  • Length:

    4.9 mm

  • Moisture Sensitivity Level:

    1

  • 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:

    SOP

  • Package Equivalence Code:

    SOP7/8,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    1.75 mm

  • Supply Current-Max (Isup):

    4 mA

  • Surface Mount:

    YES

  • Switcher Configuration:

    SINGLE

  • Switching Frequency-Max:

    70 kHz

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    3.9 mm

NCP1239KD65R2G Frequently Asked Questions (FAQs)

  • The recommended PCB layout for optimal thermal performance involves placing the device on a thermal pad with multiple vias to the ground plane, and using a large copper area on the top and bottom layers to dissipate heat. A minimum of 2oz copper thickness is recommended.
  • To ensure reliable start-up of the device in a high-noise environment, it is recommended to add a noise filter capacitor (e.g. 10nF) between the VIN pin and GND, and to use a slow-start circuit to limit the inrush current during start-up.
  • The maximum allowed voltage on the EN pin is 6V. Exceeding this voltage may damage the device. It is recommended to use a voltage divider or a zener diode to limit the voltage on the EN pin if the input voltage is higher than 6V.
  • The output voltage ripple of the device can be calculated using the formula: ΔVout = (Iout * ESL) / (Cout * fsw), where ESL is the equivalent series inductance of the output capacitor, Cout is the output capacitance, and fsw is the switching frequency.
  • The recommended input capacitor type is a low-ESR ceramic capacitor (e.g. X5R or X7R) with a value of 10uF to 22uF. The input capacitor should be placed as close as possible to the VIN pin to minimize noise and ripple.

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