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L99LD21Q6TR - STMicroelectronics

Description: High power LED driver for automotive applications

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L99LD21Q6TR - STMicroelectronics - PCB symbol
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PCB Footprints
L99LD21Q6TR - STMicroelectronics PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - QFN40L
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L99LD21Q6TR - STMicroelectronics - 3D model - Quad Flat No-Lead - QFN40L
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L99LD21Q6TR Details

  • Manufacturer Part Number:

    L99LD21Q6TR

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    End Of Life

  • Package Description:

    QFN-40

  • Country Of Origin:

    Thailand

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    52 Weeks

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    1

  • Data Input Mode:

    SERIAL

  • Input Characteristics:

    STANDARD

  • Interface IC Type:

    LED DISPLAY DRIVER

  • JESD-30 Code:

    S-XQCC-N40

  • Length:

    6 mm

  • Moisture Sensitivity Level:

    3

  • Multiplexed Display Capability:

    NO

  • Number of Functions:

    1

  • Number of Segments:

    8

  • Number of Terminals:

    40

  • Operating Temperature-Max:

    150 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Polarity:

    TRUE

  • Package Body Material:

    UNSPECIFIED

  • Package Code:

    HQCCN

  • Package Equivalence Code:

    LCC40,.24SQ,20

  • Package Shape:

    SQUARE

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG

  • Screening Level:

    AEC-Q100

  • Seated Height-Max:

    1.05 mm

  • Supply Current-Max:

    30 mA

  • Supply Voltage-Max:

    24 V

  • Supply Voltage-Min:

    5.5 V

  • Supply Voltage-Nom:

    13 V

  • Surface Mount:

    YES

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

  • Width:

    6 mm

  • fmax-Min:

    0.4096 MHz

L99LD21Q6TR Frequently Asked Questions (FAQs)

  • A 2-layer or 4-layer PCB with a solid ground plane and thermal vias is recommended. The device should be placed near a thermal pad or a heat sink to dissipate heat efficiently.
  • Use a reliable communication protocol such as SPI or I2C, and ensure that the clock frequency and data transmission rates are within the recommended specifications. Also, use a pull-up resistor on the SDA line and a pull-down resistor on the SCL line.
  • The maximum operating temperature range for the L99LD21Q6TR is -40°C to 125°C. However, the device can operate up to 150°C for short periods of time, but this may affect its reliability and lifespan.
  • The POR and BOR features can be handled by connecting the POR pin to a capacitor and a resistor to the VCC pin. The BOR threshold can be set by connecting a resistor and capacitor to the BOR pin. Refer to the datasheet for specific values and configurations.
  • A 10uF ceramic capacitor and a 1uF ceramic capacitor in parallel, placed close to the VCC pin, are recommended for power supply decoupling. This helps to filter out noise and ensure stable operation.

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L99LD21Q6TR Overview

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About STMicroelectronics

STMicroelectronics (ST) is a global semiconductor company that designs, manufactures, and markets a broad range of integrated circuits (ICs), discrete devices, and other electronic components. STMicroelectronics offers a diverse portfolio of semiconductor products covering a wide range of applications and industries. Their product categories include microcontrollers, analog and mixed-signal ICs, MEMS (Micro-Electro-Mechanical Systems) sensors, power management ICs, RF (Radio Frequency) transceivers, aut

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