Description

LR745 is a high input voltage SMPS start-up circuit. LR745 is ideally suited for use with industry standard low-voltage, Pulse-Width Modulation (PWM) ICs having start thresholds of 13.9 to 18.0V. It allows the PWM ICs to be operated from rectified 120 or 240VAC lines, and eliminates the use of power resistors often used for this purpose.

Features

• Accepts inputs from 35 to 450V

• Output current limiting

• For PWM ICs with start-up threshold voltage of 13.9 - 18.0V

• Very low power consumption after start-up

Applications

• Notebook and laptop computers

• Telecommunication power supplies

• Battery chargers

• Motor controllers

LR745N3-G-P003属于集成电路（IC） > 电源管理 - 专用。微芯科技股份有限公司制造生产的LR745N3-G-P003电源管理 - 专用专用型电源管理集成电路 (PMIC) 用于电源的控制或操作，适合特定或小范围的目标应用，例如汽车气囊管理、电容器组平衡、AC 公共电力监控、存储器总线端接、接地故障检测、能量收集、小型引擎管理、处理器或芯片集专用电压调节、负载突降保护、触觉驱动器、热电制冷器控制等。