L6234:Three phase motor driver

The L6234 is a triple half bridge to drive a brushless DC motor.

It is realized in BCDmultipower technology which combines isolated DMOS power transistors with CMOS and Bipolar circuits on the same chip.

By using mixed technology it has been possible to optimize the logic circuitry and the power stage to achieve the best possible performance.

The output DMOS transistors can sustain a very high current due to the fact that the DMOS structure is not affected by the second breakdown effect, the RMS maximum current is practically limited by the dissipation capability of the package.

All the logic inputs are TTL, CMOS and μP compatible. Each channel is controlled by two separate logic input.

L6234 is available in 20 pin PowerDIP package (16+2+2) and in PowerSO20.

Key Features

  • Supply voltage from 7 to 52 V
  • 5 A peak current
  • RDSon 0.3 Ω typ. value at 25 °C
  • Cross conduction protection
  • TTL compatible driver
  • Operating frequency up to 150 kHz
  • Thermal shutdown
  • Intrinsic fast free wheeling diodes
  • Input and enable function for each half bridge
  • 10 V external reference available
Product Specifications
DescriptionVersionSize
DS0034: Three phase motor driver10.1489 KB
Application Notes
DescriptionVersionSize
AN1088: L6234 three phase motor driver2.8349 KB
Design Notes & Tips
DescriptionVersionSize
DT0045: Design made easy with DC & BLDC motor driver tools1.2400 KB
Presentations
DescriptionVersionSize
An introduction to electric motors1.02 MB
Selection Guides
DescriptionVersionSize
STSPIN motor drivers09.20162 MB
Brochures
DescriptionVersionSize
Motor Control Reference Guide15.102 MB
Products and Solutions for Factory Automation and Control1.03 MB
Solution Evaluation Tools
Part NumberManufacturerDescription
STEVAL-IHM043V16-Step BLDC sensorless driver board based on the STM32F051 and L6234
Sample & Buy
Part NumberQuantityUnit Price (US$) *PackagePacking TypeOperating Temperature (°C) (min)Operating Temperature (°C) (max)ECCN (EU)ECCN (US)Country of Origin
L6234PD013TR10003.381PowerSO-20Tape And Reel-40150NECEAR99MALAYSIA
L6234PD10003.381PowerSO-20Tube-40150NECEAR99MALAYSIA
L623410003.032PDIP 20Tube-40150NECEAR99MALAYSIA
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
L6234PD013TRPowerSO-20IndustrialEcopack2 (**)md_77-wspc-powerso-wspc-20-wspc-.43-wspc-slug-wspc-down_a977-wspc-u513dd6.pdf
md_77-wspc-powerso-wspc-20-wspc-.xml
L6234PDPowerSO-20IndustrialEcopack2 (**)md_77-wspc-powerso-wspc-20-wspc-.43-wspc-slug-wspc-down_a977-wspc-u513dd6.pdf
md_77-wspc-powerso-wspc-20-wspc-.xml
L6234PDIP 20IndustrialEcopack1
Three phase motor driver L6234
circuit_diagram_1107_thumbnail.png L6234
L6234 three phase motor driver L6234
Design made easy with DC & BLDC motor driver tools L6230
Planning for easy troubleshooting with your L647x, L648x, or PowerStep01 design L6258EA
Planning for easy troubleshooting with your L647x, L648x, or PowerStep01 design L6258EA
STEVAL-IPM07F motor control power board based on the SLLIMM™ 2nd series of IGBT IPMs STEVAL-IPM07F
STEVAL-SPIMD20V1 demonstration kit based on the SPIMD20 integrated motor drive STEVAL-SPIMD20V1
md_77-wspc-powerso-wspc-20-wspc-.43-wspc-slug-wspc-down_a977-wspc-u513dd6.pdf L6234
md_77-wspc-powerso-wspc-20-wspc-.xml L6234
L6234