L6235Q中文资料DMOS驱动器，用于三相无刷DC电机数据手册ST规格书

描述 Description

The L6235Q is a DMOS fully integrated 3-phase motor driver with overcurrent protection. Realized in BCDmultipower 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 QFN48 7x7 package, the L6235Q features a non-dissipative overcurrent protection on the high-side power MOSFETs and thermal shutdown.

特性 Features

• Operating supply voltage from 8 to 52 V
• 5.6 A output peak current
• RDS(on)0.3 Ω typ. value @ TJ= 25 °C
• Operating frequency up to 100 kHz
• Non-dissipative overcurrent protection
• Diagnostic output
• Constant tOFFPWM current controller
• Slow decay synchronous rectification
• 60° and 120° Hall effect decoding logic
• Brake function
• Tacho output for speed loop
• Cross conduction protection
• Thermal shutdown
• Undervoltage lockout
• Integrated fast freewheeling diodes

简介

L6235Q属于集成电路（IC）的电机驱动器控制器。由制造生产的L6235Q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。