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ISL6540AIRZA-T - Renesas Electronics

Description: The ISL6540A is an improved version of the ISL6540 single-phase voltage-mode PWM controller with input voltage feed-forward compensation to maintain a constant loop gain for optimal transient response, especially for applications with a wide input voltage range. Its integrated high speed synchronous rectified MOSFET drivers and other sophisticated features provide complete control and protection for a DC/DC converter with minimum external components, resulting in minimum cost and less engineering design eff

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ISL6540AIRZA-T - Renesas Electronics - PCB symbol
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ISL6540AIRZA-T - Renesas Electronics PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - L28.5x5-
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ISL6540AIRZA-T - Renesas Electronics - 3D model - Quad Flat No-Lead - L28.5x5-
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ISL6540AIRZA-T Details

  • Manufacturer Part Number:

    ISL6540AIRZA-T

  • Brand Name:

    Renesas

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    QFN

  • Package Description:

    QFN-28

  • Pin Count:

    28

  • Manufacturer Package Code:

    L28.5X5

  • 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:

    20 V

  • Input Voltage-Min:

    3.3 V

  • JESD-30 Code:

    S-PQCC-N28

  • JESD-609 Code:

    e3

  • Length:

    5 mm

  • Moisture Sensitivity Level:

    3

  • Number of Functions:

    1

  • Number of Terminals:

    28

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • Package Equivalence Code:

    LCC28,.2SQ,20

  • Package Shape:

    SQUARE

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    1 mm

  • Supply Current-Max (Isup):

    13 mA

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    2000 kHz

  • Terminal Finish:

    MATTE TIN

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

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

    30

  • Width:

    5 mm

ISL6540AIRZA-T Frequently Asked Questions (FAQs)

  • Renesas provides a recommended PCB layout in the application note AN1995, which includes guidelines for component placement, thermal management, and routing to minimize noise and ensure optimal performance.
  • The selection of input and output capacitors depends on the specific application requirements. Renesas recommends using low-ESR capacitors with a minimum capacitance of 10uF for the input and output. The application note AN1995 provides more detailed guidance on capacitor selection.
  • The ISL6540AIRZA-T has an operating temperature range of -40°C to +125°C, but the maximum junction temperature (TJ) should not exceed 150°C. It's essential to ensure proper thermal management to prevent overheating.
  • The ISL6540AIRZA-T has a built-in overcurrent protection feature that can be enabled by connecting the OCSET pin to a resistor and a capacitor. The application note AN1995 provides a detailed example of how to implement overcurrent protection.
  • The recommended startup sequence is to first apply the input voltage, then the enable signal (EN), and finally the clock signal (CLK). This sequence ensures proper startup and prevents damage to the device.

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ISL6540AIRZA-T Overview

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