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UC1637J - Texas Instruments

Description: Texas Instruments UC1637J, PWM Controller, 2.5 → 20 V, -2.5 → -20 V, 18-Pin CDIP

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UC1637J - Texas Instruments PCB footprint - Ceramic Dual-In-Line Packages - Ceramic Dual-In-Line Packages - CDIP J
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UC1637J Details

  • Manufacturer Part Number:

    UC1637J

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    DIP

  • Pin Count:

    18

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Additional Feature:

    ALSO REQUIRES -2.5V TO -20V SUPPLY

  • Analog IC - Other Type:

    3-PHASE BRUSHLESS DC MOTOR CONTROLLER

  • JESD-30 Code:

    R-GDIP-T18

  • JESD-609 Code:

    e0

  • Length:

    24.38 mm

  • Number of Functions:

    1

  • Number of Terminals:

    18

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -55 °C

  • Output Current-Max:

    0.5 A

  • Package Body Material:

    CERAMIC, GLASS-SEALED

  • Package Code:

    DIP

  • Package Equivalence Code:

    DIP20,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    5.08 mm

  • Supply Current-Max (Isup):

    15 mA

  • Supply Voltage-Max (Vsup):

    20 V

  • Supply Voltage-Min (Vsup):

    2.5 V

  • Supply Voltage-Nom (Vsup):

    15 V

  • Surface Mount:

    NO

  • Technology:

    BIPOLAR

  • Temperature Grade:

    MILITARY

  • Terminal Finish:

    Tin/Lead (Sn/Pb)

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Width:

    7.62 mm

UC1637J Frequently Asked Questions (FAQs)

  • The recommended input capacitor value is 10uF to 22uF, with a voltage rating of at least 25V. This ensures stable operation and reduces noise.
  • To ensure stability, use a minimum output capacitor of 10uF, and a maximum ESR of 1 ohm. Also, keep the input and output capacitors close to the IC, and use a ground plane to reduce noise.
  • The maximum input voltage for the UC1637J is 40V. Exceeding this voltage may damage the IC.
  • The UC1637J is rated for operation up to 125°C. However, it's recommended to derate the output current and voltage at high temperatures to ensure reliable operation.
  • The output voltage (Vout) can be calculated using the formula: Vout = (1 + R2/R1) * Vref, where R1 and R2 are the feedback resistors, and Vref is the internal reference voltage (2.5V).

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UC1637J 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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