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ISL97672BIRZ - Renesas Electronics

Description: The ISL97672B is an integrated 6-channel power LED driver for LCD backlight applications. The ISL97672B is capable of driving LEDs with an input from 4. 5V to 26. 5V and a maximum output up to 45V. The ISL97672B employs an adaptive boost switching architecture that allows direct PWM dimming with dimming duty cycle as low as 0. 007% at 200Hz or 0. 8% at 20kHz. PWM Dimming frequency can be as high as 30kHz. The ISL97672B employs dynamic headroom control that monitors the highest LED forward voltage string for

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PCB Footprints
ISL97672BIRZ - Renesas Electronics PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - L20.3x4
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3D Models
ISL97672BIRZ - Renesas Electronics  - 3D model - Quad Flat No-Lead - L20.3x4
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ISL97672BIRZ Details

  • Manufacturer Part Number:

    ISL97672BIRZ

  • Brand Name:

    Renesas

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    QFN

  • Package Description:

    QFN-20

  • Pin Count:

    20

  • Manufacturer Package Code:

    L20.3X4

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    18 Weeks

  • Manufacturer:

    Renesas Electronics Corporation

  • YTEOL:

    0

  • Data Input Mode:

    SERIAL

  • Input Characteristics:

    STANDARD

  • Interface IC Type:

    LED DISPLAY DRIVER

  • JESD-30 Code:

    R-PQCC-N20

  • JESD-609 Code:

    e3

  • Length:

    4 mm

  • Moisture Sensitivity Level:

    3

  • Multiplexed Display Capability:

    NO

  • Number of Functions:

    1

  • Number of Segments:

    54

  • Number of Terminals:

    20

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Polarity:

    TRUE

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • Package Equivalence Code:

    LCC20,.12X.16,20

  • Package Shape:

    RECTANGULAR

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    1 mm

  • Supply Current-Max:

    5 mA

  • Supply Voltage-Max:

    26.5 V

  • Supply Voltage-Min:

    4.5 V

  • Supply Voltage-Nom:

    12 V

  • Surface Mount:

    YES

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

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

    30

  • Width:

    3 mm

  • fmax-Min:

    0.03 MHz

ISL97672BIRZ Frequently Asked Questions (FAQs)

  • A 4-layer PCB with a solid ground plane and thermal vias connecting the thermal pad to the ground plane is recommended. This helps to dissipate heat efficiently and reduce thermal resistance.
  • Monitor the input voltage, output voltage, and output current to ensure they are within the recommended operating ranges specified in the datasheet. Also, ensure the device is operated within the recommended ambient temperature range.
  • A low-ESR ceramic capacitor with a value of 10uF to 22uF is recommended for the input capacitor. This helps to filter out noise and ripple on the input voltage.
  • Use a shielded inductor, keep the switching node (SW) away from sensitive nodes, and use a common-mode choke to reduce EMI. Also, ensure good PCB layout practices, such as keeping the power traces away from sensitive signals.
  • A low-ESR ceramic capacitor with a value of 10uF to 22uF is recommended for the output capacitor. This helps to filter out noise and ripple on the output voltage.

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ISL97672BIRZ Overview

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