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L6472H - STMicroelectronics

Description: L6472H, Stepper Motor Controller, Bipolar Stepping Motor, 512kHz 8 → 45 V, 28-Pin TSSOP

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L6472H - STMicroelectronics - PCB symbol
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L6472H - STMicroelectronics PCB footprint - Small Outline Packages - Small Outline Packages - HTSSOP28_1
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L6472H - STMicroelectronics - 3D model - Small Outline Packages - HTSSOP28_1
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L6472H Details

  • Manufacturer Part Number:

    L6472H

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SSOP

  • Package Description:

    ROHS COMPLIANT, HTSSOP-28

  • Pin Count:

    28

  • Country Of Origin:

    Philippines

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    20 Weeks

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    10

  • Additional Feature:

    ALSO OPERATES AT 5 VOLT

  • Analog IC - Other Type:

    STEPPER MOTOR CONTROLLER

  • JESD-30 Code:

    R-PDSO-G28

  • JESD-609 Code:

    e3

  • Length:

    9.7 mm

  • Moisture Sensitivity Level:

    3

  • Number of Functions:

    1

  • Number of Terminals:

    28

  • Output Current-Max:

    7 A

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HTSSOP

  • Package Equivalence Code:

    TSSOP28,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    250

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.2 mm

  • Supply Current-Max (Isup):

    0.65 mA

  • Supply Voltage-Max (Vsup):

    45 V

  • Supply Voltage-Min (Vsup):

    8 V

  • Supply Voltage-Nom (Vsup):

    36 V

  • Surface Mount:

    YES

  • Technology:

    NMOS

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    4.4 mm

L6472H Frequently Asked Questions (FAQs)

  • The maximum voltage that can be applied to the VM pin is 45V, but it's recommended to keep it below 40V for reliable operation.
  • The value of R Sense depends on the desired current limit and the sense voltage. A good starting point is to use the formula: R Sense = (Sense Voltage) / (Current Limit). For example, for a 1A current limit and 0.5V sense voltage, R Sense would be 0.5V/1A = 0.5 ohms.
  • The ENN pin is an active-low enable input that allows the user to enable or disable the L6472H. When ENN is low, the device is enabled, and when ENN is high, the device is disabled. This pin can be used to implement a shutdown function or to reduce power consumption when the motor is not in use.
  • To configure the L6472H for a unipolar stepper motor, connect the motor coils between the OUT1 and OUT2 pins, and the VM pin to the motor power supply. Set the DIR pin to control the direction of rotation, and use the STEP pin to control the step sequence. The L6472H will automatically generate the necessary phase currents to drive the motor.
  • The maximum frequency of the STEP input is 100 kHz. The STEP frequency determines the motor speed, with higher frequencies resulting in faster motor rotation. However, increasing the STEP frequency also increases the motor current and heat generation, which can affect motor performance and reliability.

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L6472H 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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