LB11850VA中文资料Single-Phase Full-Wave Fan Motor Pre-Driver with Speed Control Function数据手册ONSEMI规格书

描述 Description

The LB11850VA is a single-phase bipolar fan motor driver with speed control function that works with a speed feedback signal. A highly efficient, quiet and low power consumption motor driver circuit, with a high speed accuracy and large variable speed can be implemented by adding a small number of external components. This pre-driver is optimal for driving large scale fan motors (with large air volume and large current) such as those used in servers and consumer products.

特性 Features

• Pre-driver for single-phase full-wave drive
• On-chip speed control circuit
• External PWM input or analog voltage input enabling variable speed control
• On-chip soft start circuit
• Reactive current cut circuit incorporated
• Constraint protection and automatic reset functions incorporated
• FG (speed detection), RD (lock detection) output
• Constant-voltage output pin for hall bias

简介

LB11850VA属于集成电路（IC）的电机驱动器控制器。由制造生产的LB11850VA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。