ST AN1762 handbook

The L6205, L6206, L6207 are highly integrated, mixed-signal power ICs that allow the user to easily design a control system for two-phase bipolar stepper motors, multiple DC motors and a wide range of inductive loads.


ST AN1762 handbook - cover page
Brand
STMicroelectronics
Category
Motor
Document type
Application Note
Language
English
Pages
53
File format
PDF
File size
1.4 MB
Published
06 August, 2012
Updated
30 September, 2023
Models
L6205, L6206, L6207
MD5 checksum
D9FA6F08BE94EFC22F416EE9E0233FAC

About this manual

The document introduces the L6205, L6206, and L6207 as highly integrated mixed-signal power ICs designed to drive two-phase bipolar stepper motors, multiple DC motors, and inductive loads. These devices feature eight Power DMOS and include unique circuit design features such as protection circuits and PWM current control to reduce external component count.

The note details the main differences between the three models, including current and voltage ratings, overcurrent protection mechanisms, and specific features like programmable off-time monostable for the L6207. It provides guidance on designing applications, including selecting bulk capacitors, layout considerations, and power management strategies.

What's inside

  • Introduction
  • Main Differences Between L6205, L6206, L6207
  • Current Ratings
  • Voltage Ratings and Operating Range
  • Choosing the Bulk Capacitor
  • Layout Considerations
  • Over Current Protection
  • Power Management
  • Application Example (L6207)
  • Evaluation Boards

Specifications

Maximum Output Current (rms)2.8A
Peak Output Current5.6A
Total IC RMS Current5.6A
Supply Voltage Range8 to 52V
Under Voltage Lock Out Threshold6V
Resume Voltage Threshold7V
Drain-Source Breakdown Voltage60V
Fixed Over Current Trip Point (L6205/L6207)5.6 A

Frequently asked questions

What motors can the L6205, L6206, and L6207 drive?

These ICs are specifically developed to drive a wide range of motors, including DC and stepper motors.

What is the main difference between the L6205 and L6206 regarding overcurrent protection?

The L6206 allows adjusting the trip point of the overcurrent protection for each bridge via external resistors, whereas the L6205 has a fixed trip point.

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