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LP3520 데이터시트(PDF) 1 Page - Shenzhen Xinmao Microelectronics Co., Ltd.

부품명 LP3520
상세설명  High performance subsynchronous synchronous rectifier drive chip
PDF  7 Pages
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제조업체  LANDP [Shenzhen Xinmao Microelectronics Co., Ltd.]
홈페이지  https://www.chip-hope.com/
Logo LANDP - Shenzhen Xinmao Microelectronics Co., Ltd.

LP3520 데이터시트(HTML) 1 Page - Shenzhen Xinmao Microelectronics Co., Ltd.

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LP3520
高性能副边同步整流驱动芯片
LP3520_CN_DS_Rev.1.3
www.chip-hope.com
SHENZHEN Chip Hope Micro-electronicsLTD Confidential– Customer Use Only
概述
LP3520 是一款高性能的副边同步整流芯片,
集成同
步整流 MOS,适用于隔离型的同步整流应用。尤其
适用于充电器中对高效率的需求场合。
LP3520 采用专利的原边开通判定和副边断续预判
定技术,可以有效的避免因激磁振荡引起的驱动芯
片误动作。
LP3520 采用特有的 VCC 供电技术,可以保证在原
边控制系统恒流和恒压两种工作状态下,芯片都不
会欠电工作。
另外 LP3520 还集成了 VCC 欠压保护,过压钳位,
以及驱动脚去干扰等技术。
LP3520 采用 SOP7 封装
特点
隔离型的 DCM 控制应用
集成同步整流管
专利的原边开通判定和副边断续预估
专利的关断机制,防止短路漏源电压毛刺。
特有的 VCC 供电技术
芯片供电欠压保护
芯片过压钳位
芯片启动前驱动脚防误导通
外围元器件少
SOP7 封装
应用
充电器和适配器的同步整流
反激式控制器
典型应用
AC
LP 3520
VCC
D
AE
GND
PWM
gnd
DET
图 1 LP3520 典型应用图


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