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TL494IDRG4 - Texas Instruments

Description: PWM Controller

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TL494IDRG4 - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - SOIC16-
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TL494IDRG4 - Texas Instruments  - 3D model - Small Outline Packages - SOIC16-
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TL494IDRG4 Details

  • Manufacturer Part Number:

    TL494IDRG4

  • Brand Name:

    Texas Instruments

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Pin Count:

    16

  • Country Of Origin:

    Mexico

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    VOLTAGE-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    40 V

  • Input Voltage-Min:

    7 V

  • Input Voltage-Nom:

    15 V

  • JESD-30 Code:

    R-PDSO-G16

  • JESD-609 Code:

    e4

  • Length:

    9.9 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    0.25 A

  • Output Voltage-Max:

    5.25 V

  • Output Voltage-Min:

    4.75 V

  • Output Voltage-Nom:

    5 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP16,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.75 mm

  • Supply Current-Max (Isup):

    15 mA

  • Supply Voltage-Max (Vsup):

    40 V

  • Supply Voltage-Min (Vsup):

    7 V

  • Supply Voltage-Nom (Vsup):

    15 V

  • Surface Mount:

    YES

  • Switcher Configuration:

    PUSH-PULL

  • Switching Frequency-Max:

    300 kHz

  • Technology:

    BIPOLAR

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

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

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    3.9 mm

TL494IDRG4 Frequently Asked Questions (FAQs)

  • The maximum operating frequency of the TL494IDRG4 is 300 kHz. However, it's recommended to operate it at a frequency below 100 kHz for optimal performance and to minimize electromagnetic interference (EMI).
  • To ensure stable operation, make sure to decouple the power supply pins (VCC and GND) with a 10uF capacitor, and use a 1kΩ to 10kΩ resistor in series with the output pin (OUT) to prevent oscillations. Additionally, ensure that the input voltage (VIN) is within the recommended range of 7V to 40V.
  • The dead-time control (DTC) pin is used to adjust the dead time between the turn-on and turn-off of the power switches in a push-pull converter. This helps to prevent shoot-through currents and reduce electromagnetic interference (EMI).
  • Yes, the TL494IDRG4 can be used in a synchronous rectifier configuration. However, it's essential to ensure that the synchronous rectifier switch is properly synchronized with the main power switch to prevent shoot-through currents and reduce losses.
  • The minimum duty cycle is typically around 5% to 10%, while the maximum duty cycle is around 90% to 95%. The exact values depend on the specific application and the desired output voltage. You can use the following formula to calculate the duty cycle: Duty Cycle = (Ton / (Ton + Toff)), where Ton is the on-time and Toff is the off-time.

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TL494IDRG4 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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