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L9935 - STMicroelectronics

Description: Bipolar Motor Driver DMOS SPI PowerSO-20 -40°C ~ 150°C 8V ~ 24V 1.2A

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L9935 - STMicroelectronics - PCB symbol
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PCB Footprints
L9935 - STMicroelectronics PCB footprint - Small Outline Packages - Small Outline Packages - PowerSO20_2025
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3D Models
L9935 - STMicroelectronics - 3D model - Small Outline Packages - PowerSO20_2025
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L9935 Details

  • Manufacturer Part Number:

    L9935

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Not Recommended

  • Part Package Code:

    SOIC

  • Package Description:

    ROHS COMPLIANT, POWER, MO-166, SOP-20

  • Pin Count:

    20

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    3

  • Additional Feature:

    ALSO REQUIRES 8V TO 24V SUPPLY

  • Analog IC - Other Type:

    STEPPER MOTOR CONTROLLER

  • JESD-30 Code:

    R-PDSO-G20

  • JESD-609 Code:

    e3

  • Length:

    15.9 mm

  • Number of Functions:

    1

  • Number of Terminals:

    20

  • Output Current-Max:

    2.5 A

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HSOP

  • Package Equivalence Code:

    SOP20,.56

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG

  • Peak Reflow Temperature (Cel):

    NOT SPECIFIED

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    3.6 mm

  • Supply Voltage-Max (Vsup):

    5.5 V

  • Supply Voltage-Min (Vsup):

    4.5 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    YES

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    NOT SPECIFIED

  • Width:

    11 mm

L9935 Frequently Asked Questions (FAQs)

  • A good PCB layout for the L9935 involves keeping the input and output capacitors close to the IC, using a solid ground plane, and minimizing the length of the traces to reduce EMI. A 4-layer PCB with a dedicated power plane and a solid ground plane is recommended.
  • The input capacitor should be a low-ESR ceramic capacitor with a value between 10uF to 22uF, while the output capacitor should be a low-ESR ceramic or electrolytic capacitor with a value between 22uF to 47uF. The capacitor values and types should be chosen based on the specific application requirements and operating conditions.
  • The L9935 can handle input voltages up to 40V, but it's recommended to keep the input voltage below 36V to ensure reliable operation and to prevent damage to the IC.
  • The output voltage of the L9935 can be adjusted by changing the value of the feedback resistors (R1 and R2) or by using a potentiometer to adjust the feedback voltage. The output voltage can be calculated using the formula: Vout = 1.25V x (1 + R2/R1).
  • The L9935 can deliver up to 3A of output current, but the maximum output current may be limited by the input voltage, output voltage, and the thermal performance of the PCB and the IC.

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L9935 Overview

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About STMicroelectronics

STMicroelectronics (ST) is a global semiconductor company that designs, manufactures, and markets a broad range of integrated circuits (ICs), discrete devices, and other electronic components. STMicroelectronics offers a diverse portfolio of semiconductor products covering a wide range of applications and industries. Their product categories include microcontrollers, analog and mixed-signal ICs, MEMS (Micro-Electro-Mechanical Systems) sensors, power management ICs, RF (Radio Frequency) transceivers, aut

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