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TLC5957RTQT - Texas Instruments

Description: 48-channel, 16bit ES-PWM LED driver w/ Pre-charge FET, LED OPEN Detection and Caterpillar Cancelling

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PCB Footprints
TLC5957RTQT - Texas Instruments PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - qfn-rtq-57
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3D Models
TLC5957RTQT - Texas Instruments  - 3D model - Quad Flat No-Lead - qfn-rtq-57
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TLC5957RTQT Details

  • Manufacturer Part Number:

    TLC5957RTQT

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    VQFN-56

  • Country Of Origin:

    Philippines

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Data Input Mode:

    SERIAL

  • Input Characteristics:

    STANDARD

  • Interface IC Type:

    LED DISPLAY DRIVER

  • JESD-30 Code:

    S-PQCC-N56

  • JESD-609 Code:

    e4

  • Length:

    8 mm

  • Moisture Sensitivity Level:

    3

  • Multiplexed Display Capability:

    YES

  • Number of Functions:

    1

  • Number of Segments:

    48

  • Number of Terminals:

    56

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Characteristics:

    CONSTANT-CURRENT

  • Output Polarity:

    TRUE

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • Package Equivalence Code:

    LCC56,.31SQ,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:

    28 mA

  • Supply Voltage-Max:

    5.5 V

  • Supply Voltage-Min:

    3 V

  • Supply Voltage-Nom:

    4 V

  • Supply Voltage1-Max:

    5.5 V

  • Supply Voltage1-Min:

    3 V

  • Supply Voltage1-Nom:

    4 V

  • Surface Mount:

    YES

  • Technology:

    BICMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Nickel/Palladium/Gold (Ni/Pd/Au)

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

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

    30

  • Width:

    8 mm

  • fmax-Min:

    33 MHz

TLC5957RTQT Frequently Asked Questions (FAQs)

  • The maximum clock frequency for the TLC5957 is 25 MHz. However, it's recommended to use a clock frequency of 10 MHz or less to ensure reliable operation.
  • To ensure LED current accuracy and consistency, it's recommended to use external resistors to set the current for each LED channel. Additionally, using high-quality LEDs with tight binning and matching can help minimize variations.
  • The recommended power-up sequence is to first apply VCC, then VDD, and finally the clock signal. This ensures that the internal voltage regulators and logic are properly initialized.
  • To troubleshoot issues, start by verifying the power supply voltages, clock signal, and data transmission. Use a logic analyzer or oscilloscope to check the signal integrity and timing. Also, ensure that the LED connections and resistors are correct, and that the LEDs are not damaged.
  • Yes, the TLC5957 can operate with a 5V power supply, but it's recommended to use a 3.3V power supply for optimal performance and to reduce power consumption. If using a 5V power supply, ensure that the input signals are 5V-tolerant and that the output voltage is within the recommended range.

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TLC5957RTQT Overview

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About Texas Instruments

Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.

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