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ISL6744AAUZ - Renesas Electronics

Description: The ISL6744A is a low cost, primary side, double-ended controller intended for applications using full and half-bridge topologies for unregulated DC/DC converters. It is a voltage-mode PWM controller designed for half-bridge and full-bridge power supplies. It provides precise switching frequency control, adjustable soft-start, precise dead time control with dead times as low as 35ns, and overcurrent shutdown. The ISL6744A is identical to the ISL6744, but is optimized for higher noise environments. Low start

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ISL6744AAUZ - Renesas Electronics - PCB symbol
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PCB Footprints
ISL6744AAUZ - Renesas Electronics PCB footprint - Small Outline Packages - Small Outline Packages - M8.118
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ISL6744AAUZ - Renesas Electronics - 3D model - Small Outline Packages - M8.118
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ISL6744AAUZ Details

  • Manufacturer Part Number:

    ISL6744AAUZ

  • Brand Name:

    Renesas

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    MSOP

  • Package Description:

    MSOP-8

  • Pin Count:

    8

  • Manufacturer Package Code:

    M8.118

  • Country Of Origin:

    Mainland China, Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    18 Weeks

  • Manufacturer:

    Renesas Electronics Corporation

  • YTEOL:

    0

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    VOLTAGE-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    16 V

  • Input Voltage-Min:

    9 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    S-PDSO-G8

  • JESD-609 Code:

    e3

  • Length:

    3 mm

  • Moisture Sensitivity Level:

    2

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    105 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TSSOP

  • Package Equivalence Code:

    TSSOP8,.19

  • Package Shape:

    SQUARE

  • Package Style:

    SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    1.1 mm

  • Supply Current-Max (Isup):

    8.5 mA

  • Supply Voltage-Nom (Vsup):

    12 V

  • Surface Mount:

    YES

  • Switcher Configuration:

    SINGLE

  • Switching Frequency-Max:

    2000 kHz

  • Technology:

    BICMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    3 mm

ISL6744AAUZ Frequently Asked Questions (FAQs)

  • A good PCB layout is crucial for the ISL6744AAUZ. Ensure that the input and output capacitors are placed close to the IC, and the power traces are wide and short. Use a solid ground plane and avoid routing high-frequency signals under the IC. Refer to the application note 'PCB Layout Guidelines for Switching Regulators' for more details.
  • Choose an inductor with a high saturation current rating, low DC resistance, and a suitable inductance value. The datasheet recommends an inductor with an inductance value between 1.5 μH and 3.3 μH. Consider using a shielded inductor to reduce EMI. You can use online inductor selection tools or consult with an inductor manufacturer for guidance.
  • The ISL6744AAUZ has an absolute maximum input voltage rating of 18 V. However, the recommended operating input voltage range is 6.5 V to 14 V. Exceeding the absolute maximum rating can damage the IC.
  • To ensure stability, follow the datasheet's guidelines for component selection, PCB layout, and compensation. Use a compensation network with a suitable resistor and capacitor values. You can also use the Renesas Electronics Corporation's online stability analysis tool to help with compensation design.
  • The ISL6744AAUZ has a thermal derating of 30% per °C above 85°C. This means that the maximum output current rating decreases as the ambient temperature increases. Ensure proper thermal design and heat sinking to maintain a safe operating temperature.

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ISL6744AAUZ Overview

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