L6228Q: Dual full bridge with PWM current control and translator for stepper reference design board

The L6228Q is a DMOS fully integrated stepper motor driver, realized in BCD multipower technology.

The L6228Q includes the circuitry to drive a two-phase bipolar stepper motor: a dual DMOS full-bridge, the constant off-time, the PWM current controller performing the chopping regulation and the phase sequence generator, which generates the stepping sequence. The 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
  • 2.8 A output peak current (1.4 Ar.m.s. )
  • 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



Description バージョン サイズ
DB1878 DB1878: Demonstration board mounting the L6228Q dual full-bridge driver 1.0 250 KB
Description バージョン サイズ
AN2757 AN2757: EVAL6228QR reference design board 2.1 224 KB
AN2839 AN2839: L6228 fully-integrated two-phase stepper motor driver 1.2 1 MB


Bill of Materials
Description バージョン サイズ
EVAL6228QR BOM 1.0 13 KB
Schematic Packs
Description バージョン サイズ
EVAL6228QR schematic 1.0 15 KB

Publications and Collaterals

Description バージョン サイズ
Products and Solutions for Factory Automation and Control 1.0 3 MB


Description バージョン サイズ
Evaluation products license agreement 1.0 125 KB
サポート & コミュニティ

サンプル & 購入

製品型番 Core Product Marketing Status Unit Price (US$) * 数量 ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
EVAL6228QR L6228Q Active 49.00 - 5A002A1A 5A002A1A - MORE INFO 直接購入 買い物かごに追加 DISTRIBUTOR AVAILABILITY

(*) 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

品質 & 信頼性

製品型番 Marketing Status パッケージ Grade RoHS Compliance Grade Material Declaration**
EVAL6228QR アクティブCARDIndustrialEcopack1

(**) 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.