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LM51551DSST - Texas Instruments

Description: Switching Controllers 2.2-MHz wide VIN nonsynchronous boost, flyback, & SEPIC controller with hiccup 12-WSON -40 to 125

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PCB Footprints
LM51551DSST - Texas Instruments PCB footprint - Small Outline No-lead - Small Outline No-lead - DSS0012B_2021
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LM51551DSST - Texas Instruments  - 3D model - Small Outline No-lead - DSS0012B_2021
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LM51551DSST Details

  • Manufacturer Part Number:

    LM51551DSST

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Date Of Intro:

    2018-12-16

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    45 V

  • Input Voltage-Min:

    1.5 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    R-PDSO-N12

  • JESD-609 Code:

    e4

  • Length:

    3 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    12

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Voltage-Max:

    300 V

  • Output Voltage-Min:

    1.5 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVSON

  • Package Equivalence Code:

    SOLCC12,.08,20

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    0.8 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK-BOOST

  • Switching Frequency-Max:

    2200 kHz

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

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

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    2 mm

LM51551DSST Frequently Asked Questions (FAQs)

  • The LM51551DSST can handle input voltages up to 60V, but it's recommended to keep it below 50V for optimal performance and reliability.
  • To ensure stability, make sure to use a minimum output capacitance of 10uF, and a maximum ESR of 1 ohm. Also, use a low-ESR capacitor for the input capacitor.
  • The LM51551DSST can provide up to 1.5A of output current, but it's recommended to keep it below 1.2A for optimal performance and reliability.
  • To configure the LM51551DSST for a specific output voltage, use the feedback resistors (R1 and R2) to set the output voltage. The ratio of R1 to R2 determines the output voltage. Use the formula: Vout = 0.8V * (1 + R2/R1) to calculate the output voltage.
  • The thermal shutdown temperature of the LM51551DSST is typically around 150°C. If the junction temperature exceeds this value, the device will shut down to prevent damage.

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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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