DMOS driver for bipolar stepper motor

The L6208 device is a DMOS fully integrated stepper motor driver with non-dissipative overcurrent protection, realized in BCD technology, which combines isolated DMOS power transistors with CMOS and bipolar circuits on the same chip. The device includes all the circuitry needed to drive a two phase bipolar stepper motor including: a dual DMOS full bridge, the constant off time PWM current controller that performs the chopping regulation and the phase sequence generator, that generates the stepping sequence. Available in PowerDIP24 (20 + 2 + 2), PowerSO36 and SO24 (20 + 2 + 2) packages, the L6208 device features a non-dissipative overcurrent protection on the high-side Power MOSFETs and thermal shutdown.

Key Features

  • Operating supply voltage from 8 to 52 V
  • 5.6 A output peak current (2.8 A RMS)
  • RDS(ON ) 0.3 Ω typ. value at Tj = 25 °C
  • Operating frequency up to 100 KHz
  • Non-dissipative overcurrent protection
  • Dual independent constant tOFF PWM current controllers
  • Fast/slow decay mode selection
  • Fast decay quasi-synchronous rectification
  • Decoding logic for stepper motor full and half step drive
  • Cross conduction protection
  • Thermal shutdown
  • Undervoltage lockout
  • Integrated fast freewheeling diodes

Circuit Diagram

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Resources

Technical Documentation

Product Specifications
Description Version Size
DS2142 DS2142: DMOS driver for bipolar stepper motor 2.0 701 KB
Application Notes
Description Version Size
AN1451 AN1451: L6208 fully integrated two phase stepper motor driver 2.4 1 MB
AN1495 AN1495: Microstepping stepper motor drive using peak detecting current control 3.2 708 KB
AN1794 AN1794: PractiSPIN evaluation system configuration and set up guide 2.4 435 KB
AN235 AN235: Stepper motor driving 2.2 1 MB
User Manuals
Description Version Size
UM2022 UM2022: SPINFamily evaluation tool 2.0 2 MB
Design Notes & Tips
Description Version Size
DT0056 DT0056: Planning for easy troubleshooting with your L647x, L648x, or PowerStep01 design 2.0 172 KB

Presentations & Training Material

Presentations
Description Version Size
An introduction to electric motors 1.0 2 MB
STSPIN L620x, L622x and L623x product presentation 1.0 1 MB

Hardware Resources

Board Manufacturing Specifications
Description Version Size
PCB Layout 1.0 243 KB
Schematic Pack
Description Version Size
Board Schematic 1.0 61 KB
Board Schematic 1.0 121 KB

Publications and Collaterals

Selection Guides
Description Version Size
STSPIN motor drivers 11.2017 1 MB
Brochures
Description Version Size
Motor Control Reference Guide 15.10 2 MB
Products and Solutions for Factory Automation and Control 2.0 3 MB

Tools and Software

Ecosystems
STM32 Open Development Environment
Evaluation Tools
Solution Evaluation Tools
Get Started Support & Community
Related Applications



Sample & Buy

Part Number Marketing Status Quantity Unit Price (US$) * Package Packing Type Operating Temperature (°C) (min) Operating Temperature (°C) (max) ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
L6208N NRND 1000 3.373 PDIP 24 .3 Tube -40 150 NEC EAR99 - MORE INFO DISTRIBUTOR AVAILABILITY
L6208PD013TR Active 1000 4.216 PowerSO 36 Tape And Reel -40 150 NEC EAR99 MALAYSIA MORE INFO Get Sample Add to cart DISTRIBUTOR AVAILABILITY
L6208PD Active 1000 4.216 PowerSO 36 Tube -40 150 NEC EAR99 MALAYSIA MORE INFO DISTRIBUTOR AVAILABILITY
L6208D Active 1000 3.373 SO-24 Tube -40 150 NEC EAR99 MALAYSIA MORE INFO DISTRIBUTOR AVAILABILITY
L6208D013TR Active 1000 3.373 SO-24 Tape And Reel -40 150 NEC EAR99 MALAYSIA MORE INFO Get Sample Add to cart DISTRIBUTOR AVAILABILITY
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(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L6208N NRNDPDIP 24 .3-Ecopack1
L6208PD013TR ActivePowerSO 36-Ecopack2 (**) 0 0
L6208PD ActivePowerSO 36-Ecopack2 (**) 0 0
L6208D ActiveSO-24-Ecopack1
L6208D013TR ActiveSO-24-Ecopack1
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(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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