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RT4531WSC - RICHTEK

Description: LED Lighting Drivers Dual Channel 10s2p WLED Drivers

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RT4531WSC - RICHTEK PCB footprint - BGA - BGA - RT4531WSC
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RT4531WSC - RICHTEK  - 3D model - BGA - RT4531WSC
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RT4531WSC Details

  • Manufacturer Part Number:

    RT4531WSC

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    WL-CSP1.35x1.35-9(BSC)

  • Manufacturer Package Code:

    WL-CSP1.35x1.35-9(BSC)

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Richtek Technology Corp

  • YTEOL:

    7.2

  • Interface IC Type:

    LED DISPLAY DRIVER

  • JESD-30 Code:

    S-PBGA-B9

  • Length:

    1.35 mm

  • Multiplexed Display Capability:

    NO

  • Number of Functions:

    1

  • Number of Segments:

    8

  • Number of Terminals:

    9

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    VFBGA

  • Package Equivalence Code:

    BGA9,3X3,16

  • Package Shape:

    SQUARE

  • Package Style:

    GRID ARRAY, VERY THIN PROFILE, FINE PITCH

  • Peak Reflow Temperature (Cel):

    NOT SPECIFIED

  • Seated Height-Max:

    0.6 mm

  • Supply Voltage-Max:

    5.5 V

  • Supply Voltage-Min:

    2.5 V

  • Supply Voltage-Nom:

    3.6 V

  • Surface Mount:

    YES

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Form:

    BALL

  • Terminal Pitch:

    0.4 mm

  • Terminal Position:

    BOTTOM

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

    NOT SPECIFIED

  • Width:

    1.35 mm

RT4531WSC Frequently Asked Questions (FAQs)

  • A 4-layer PCB with a solid ground plane and thermal vias is recommended. Keep the thermal pad connected to the ground plane to improve heat dissipation.
  • Use a high-quality input capacitor (e.g., X5R or X7R) with a capacitance value of at least 10uF, and ensure the input voltage ripple is within the recommended range.
  • The RT4531WSC can withstand input voltage transients up to 28V for a duration of 100ms, but it's recommended to keep transients below 24V to ensure reliable operation.
  • Yes, but with derating. The device can operate up to 125°C, but the output current should be reduced by 50% above 85°C to ensure reliable operation.
  • Use a shielded inductor, keep the switching node (SW) away from sensitive nodes, and add a common-mode choke or EMI filter to reduce emissions.

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RT4531WSC Overview

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