L6470H
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STMicroelectronics L6470H

Manufacturer No:
L6470H
Manufacturer:
STMicroelectronics
Package:
Tube
Description:
IC MTR DRV BIPLR 3.3/5V 28HTSSOP
Delivery:
Payment:
iso14001
iso45001
iso9001
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Product Introduction

Overview

The L6470H, produced by STMicroelectronics, is an advanced fully integrated microstepping motor driver designed for driving two-phase bipolar stepper motors. Realized in analog mixed signal technology, this device integrates a dual low RDS(on) DMOS full bridge with accurate on-chip current sensing circuitry. This allows for non-dissipative current control and overcurrent protection. The L6470H features a unique control system that achieves a true 1/128 steps resolution and supports user-defined motion profiles with acceleration, deceleration, speed, or target position, all programmable through a dedicated set of registers via a standard 5-Mbit/s SPI interface. The device includes a rich set of protections, including thermal, low bus voltage, overcurrent, and motor stall, making it suitable for demanding motor control applications.

Key Specifications

Parameter Value
Operating Voltage 8 - 45 V
Peak Current 7.0 A (3.0 A r.m.s.)
Package HTSSOP28, PowerSO 36
Grade Industrial
RoHS Compliance Ecopack1 (PowerSO 36), Ecopack2 (HTSSOP28)
Longevity Commitment 15 years
Operating Temperature -40°C to 150°C (junction temperature)

Key Features

  • Low RDS(on) Power MOSFETs
  • Programmable speed profile and positioning
  • Programmable power MOS slew rate
  • Up to 1/128 microstepping
  • Sensorless stall detection
  • SPI interface
  • Low quiescent and standby currents
  • Programmable non-dissipative overcurrent protection on high and low-side
  • Two-levels of overtemperature protection

Applications

The L6470H is suitable for a variety of applications, including:

  • Communications equipment
  • Computers and peripherals
  • Industrial automation
  • Personal electronics

Q & A

  1. What is the operating voltage range of the L6470H?

    The operating voltage range is 8 - 45 V.

  2. What is the peak current capability of the L6470H?

    The peak current is 7.0 A (3.0 A r.m.s.).

  3. What are the available packages for the L6470H?

    The device is available in HTSSOP28 and PowerSO 36 packages.

  4. Is the L6470H RoHS compliant?
  5. What is the microstepping resolution of the L6470H?

    The L6470H supports up to 1/128 microstepping.

  6. How is the device programmed?

    The device is programmed through a standard 5-Mbit/s SPI interface.

  7. What protections does the L6470H offer?

    The device offers thermal, low bus voltage, overcurrent, and motor stall protections.

  8. What is the longevity commitment for the L6470H?

    The longevity commitment is 15 years.

  9. What are some common applications for the L6470H?

    Common applications include communications equipment, computers and peripherals, industrial automation, and personal electronics.

  10. Where can I find technical support for the L6470H?

    Technical support can be obtained from the customer support team of the distributor or directly from STMicroelectronics.

Product Attributes

Motor Type - Stepper:Bipolar
Motor Type - AC, DC:- 
Function:Driver - Fully Integrated, Control and Power Stage
Output Configuration:Half Bridge (4)
Interface:SPI
Technology:DMOS
Step Resolution:1 ~ 1/128
Applications:General Purpose
Current - Output:3A
Voltage - Supply:3.3V, 5V
Voltage - Load:8V ~ 45V
Operating Temperature:-40°C ~ 150°C (TJ)
Mounting Type:Surface Mount
Package / Case:28-TSSOP (0.173", 4.40mm Width) Exposed Pad
Supplier Device Package:28-HTSSOP
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$10.70
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Similar Products

Part Number L6470H L6472H L6480H L6474H
Manufacturer STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics
Product Status Active Active Active Active
Motor Type - Stepper Bipolar Bipolar Bipolar Bipolar
Motor Type - AC, DC - - - -
Function Driver - Fully Integrated, Control and Power Stage Driver - Fully Integrated, Control and Power Stage Controller - Commutation, Direction Management Driver - Fully Integrated, Control and Power Stage
Output Configuration Half Bridge (4) Half Bridge (4) Pre-Driver - Half Bridge (4) Half Bridge (4)
Interface SPI SPI SPI SPI
Technology DMOS DMOS DMOS DMOS
Step Resolution 1 ~ 1/128 1 ~ 1/16 1 ~ 1/128 1 ~ 1/16
Applications General Purpose General Purpose General Purpose General Purpose
Current - Output 3A 3A - 3A
Voltage - Supply 3.3V, 5V 3.3V, 5V 3.3V, 5V 3.3V, 5V
Voltage - Load 8V ~ 45V 8V ~ 45V - 8V ~ 45V
Operating Temperature -40°C ~ 150°C (TJ) -40°C ~ 150°C (TJ) -40°C ~ 150°C (TJ) -40°C ~ 150°C (TJ)
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Package / Case 28-TSSOP (0.173", 4.40mm Width) Exposed Pad 28-TSSOP (0.173", 4.40mm Width) Exposed Pad 38-TFSOP (0.173", 4.40mm Width) Exposed Pad 28-TSSOP (0.173", 4.40mm Width) Exposed Pad
Supplier Device Package 28-HTSSOP 28-HTSSOP 38-HTSSOP 28-HTSSOP

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