L6229中文资料用于三相无刷直流电机的DMOS驱动器数据手册ST规格书

描述 Description

The L6229 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 Power SO36 and SO24 (20 + 2 + 2) packages, the L6229 features a non-dissipative overcurrent protection on the high-side power MOSFET and thermal shutdown.

特性 Features

• Operating supply voltage from 8 to 52 V
• 2.8 A output peak current (1.4 A DC)
• RDS(ON) 0.73 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 free wheeling diodes

简介

L6229属于集成电路（IC）的电机驱动器控制器。由制造生产的L6229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。