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TLC5946PWR - Texas Instruments

Description: LED Display Drivers 16Ch 12B PWM LED Driver

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TLC5946PWR - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - TSSOP_PW
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TLC5946PWR - Texas Instruments  - 3D model - Small Outline Packages - TSSOP_PW
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TLC5946PWR Details

  • Manufacturer Part Number:

    TLC5946PWR

  • Brand Name:

    Texas Instruments

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SSOP

  • Package Description:

    TSSOP-28

  • Pin Count:

    28

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Data Input Mode:

    SERIAL

  • Display Mode:

    DOT MATRIX

  • Input Characteristics:

    STANDARD

  • Interface IC Type:

    LED DISPLAY DRIVER

  • JESD-30 Code:

    R-PDSO-G28

  • JESD-609 Code:

    e4

  • Length:

    9.7 mm

  • Moisture Sensitivity Level:

    1

  • Multiplexed Display Capability:

    NO

  • Number of Functions:

    1

  • Number of Segments:

    16

  • Number of Terminals:

    28

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Characteristics:

    CONSTANT-CURRENT

  • Output Polarity:

    TRUE

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TSSOP

  • Package Equivalence Code:

    TSSOP28,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.2 mm

  • Supply Current-Max:

    45 mA

  • Supply Voltage-Max:

    5.5 V

  • Supply Voltage-Min:

    3 V

  • Supply Voltage-Nom:

    3.3 V

  • Supply Voltage1-Max:

    5.5 V

  • Supply Voltage1-Min:

    3 V

  • Supply Voltage1-Nom:

    3.3 V

  • Surface Mount:

    YES

  • Technology:

    BICMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

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

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    4.4 mm

  • fmax-Min:

    30 MHz

TLC5946PWR Frequently Asked Questions (FAQs)

  • The TLC5946PWR can source up to 60mA per output, but it's recommended to limit it to 40mA to ensure reliable operation and prevent overheating.
  • During startup, GSCLK should be low, SCLK should be high, and XLAT should be low. Then, bring GSCLK high, followed by SCLK low, and finally XLAT high. This ensures proper initialization of the device.
  • The VPRG pin is used to set the internal voltage reference for the device. It should be connected to a voltage source between 1.2V and 3.3V, or left unconnected to default to an internal 1.2V reference.
  • The TLC5946PWR has a built-in thermal shutdown feature that turns off the outputs when the device overheats. To handle this, monitor the THERMAL_SHUTDOWN pin, which goes low when the device overheats. You can also implement external thermal protection using a thermistor or thermal sensor.
  • To minimize noise and ensure reliable operation, it's recommended to keep the GSCLK, SCLK, and XLAT signals short and away from the output pins. Also, use a solid ground plane and decouple the power supply pins with capacitors.

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TLC5946PWR 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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