L6235 DMOS Driver for Three-Phase Brushless DC Motor Evaluation Board

The L6235 device is a DMOS fully integrated 3-phase motor driver with overcurrent protection.

Realized in BCD technology, the device combines isolated DMOS power transistors with CMOS and bipolar circuits on the same chip.

The device includes all the circuitry needed to drive a 3-phase BLDC motor including: a 3-phase DMOS bridge, a constant off-time PWM current controller and the decoding logic for single ended hall sensors that generates the required sequence for the power stage.

Available in a PowerDIP24 (20 + 2 + 2) package, the L6235 device features non-dissipative overcurrent protection on the high-side power MOSFETs and the thermal shutdown.

Key Features

  • Operating supply voltage from 8 to 52 V
  • 5.6 A output peak current (2.8 A DC)
  • RDS(ON) 0.3 Ω typ. value at Tj = 25 °C
  • Operating frequency up to 100 KHz
  • Non-dissipative overcurrent detection and protection
  • Diagnostic output
  • Constant tOFF PWM current controller
  • Slow decay synchronous rectification
  • 60° and 120° hall effect decoding logic
  • Brake function
  • Tachometer output for speed loop
  • Cross-conduction protection
  • Thermal shutdown
  • Undervoltage lockout
  • Integrated fast freewheeling diodes

Design

Technical Documentation

Product Specifications
Description Version Size
DB2576 DB2576: Demonstration board for L6235 DMOS driver for 3-phase brushless DC motor 1.0 454 KB
Application Notes
Description Version Size
AN1794 AN1794: PractiSPIN evaluation system configuration and set up guide 2.4 435 KB

Hardware Resources

Board Manufacturing Specifications
Description Version Size
EVAL6235N gerber 194 KB

Publications and Collaterals

Brochures
Description Version Size
Products and Solutions for Factory Automation and Control 1.0 3 MB

Legal

License Agreement
Description Version Size
Evaluation products license agreement 1.0 125 KB

Tools and Software

Embedded Software
Evaluation Tools
Motor Control IC Software
Solution Evaluation Tools
Support & Community

Sample & Buy

Part Number Core Product Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
EVAL6235N L6235 Active 25.73 - NEC EAR99 - MORE INFO Buy Direct 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**
EVAL6235N ActiveCARDIndustrialEcopack1
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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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