DMOS driver for bipolar stepper motor

The L6228Q is a DMOS fully integrated stepper motor driver with non-dissipative overcurrent protection, realized in BCDmultipower 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 VFQFPN32 5 mm x 5 mm package, the L6228Q 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
  • 2.8 A output peak current (1.4 A RMS)
  • RDS(on) 0.73 Ω typ. value @ 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 free wheeling diodes

Circuit Diagram

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Resources

Technical Documentation

Product Specifications
Description Version Size
DS5663 DS5663: DMOS driver for bipolar stepper motor 5.0 374 KB
Application Notes
Description Version Size
AN2839 AN2839: L6228 fully-integrated two-phase stepper motor driver 1.2 1 MB
AN1495 AN1495: Microstepping stepper motor drive using peak detecting current control 3.2 708 KB
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

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

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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
L6228Q Active 1000 1.571 VFQFPN 32 5x5x1.0 Tray -40 150 NEC EAR99 PHILIPPINES MORE INFO DISTRIBUTOR AVAILABILITY
L6228QTR Active 1000 1.571 VFQFPN 32 5x5x1.0 Tape And Reel -40 150 NEC EAR99 PHILIPPINES MORE INFO No availability reported, please contact our Sales office
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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**
L6228Q ActiveVFQFPN 32 5x5x1.0IndustrialEcopack2 0 0
L6228QTR ActiveVFQFPN 32 5x5x1.0IndustrialEcopack2 0 0
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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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