L6234中文资料三相电机驱动器数据手册ST规格书

描述 Description

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 inputs.

The L6234 device is available in a 20-pin PowerSO20 package.

特性 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

简介

L6234属于集成电路（IC）的电机驱动器控制器。由制造生产的L6234电机驱动器，控制器产品属于电机驱动器和控制器电源管理集成电路 (PMIC) 系列，可用于控制或操作从某电源施加到电机或相关机电执行器的电源。所实现的具体功能和特性集根据预期负载和预期应用的特性有很大差异，范围从用于有刷电机的简单开环速度控制到基于步进电机的高级闭环运动控制。