微桥科技产品新闻动态管理发布系统 现在是
首页 ·公司动态 ·产品动态 ·原厂动态 ·行业动态 ·技术资料 ·LED驱动 ·DC-DC ·AC-DC ·MOSFET ·音频功放 ·电池管理 ·霍尔及马达驱动 ·其他 ·联系我们

当前位置:首页>>LED驱动>>Feeling远翔 >>FP1209-异步升压LED驱动IC   双击自动滚屏
发布者:来自网络 发布时间:2020/3/12 阅读:355次    关键字: LED
FP1209-异步升压LED驱动IC


FP1209-异步升压LED驱动IC DataSheet

FP1209应用说明  Application Note

FP1209元件值计算

 
一般描述:
FP1209是一颗异步升压LED驱动IC,控制外部开关NMOS,输入低启动电压2.8V,工作电压5V,VFB反馈电压0.25V,反馈电压低,取样电阻功率损耗也降低,整体转换效率提升。内建软启动功能,LED开路保护透过外部电阻调整;调光控制DIMPin,DIM内部有滤波器,可以实现线性与数字调光;有过电流保护,避免开关NMOS电流过大造成损坏;内置过热保护功能。
 
特色:
➢启动电压2.8V
➢工作电压范围5V~24V
➢VFB反馈电压0.25V
➢线性与数字调光控制
➢关机耗电流最大6μA
➢固定工作频率150kHz
➢LED开路保护(OVP)
➢开关NMOS过电流保护(OCP)
➢过热降LED电流保护
➢过温保护(OTP)
➢封装SOP-8L(EP)
 
应用范围:
➢LED模块
➢显示器背光
➢车灯
➢手持式照明
 

General Description
    The FP1209 is boost topology switching regulator for LED driver. It provides built-in gate driver pin for driving external N-MOSFET. The non-inverting input of error amplifier connects to a 0.25V reference voltage. It has fixed soft start time and switching frequency. There are two functions to protect system circuit like OVP and OCP. The LED current can be adjusted by an external signal connecting to the DIM pin. DIM pin accepts either a DC voltage or a PWM signal. The PWM signal filter components are contained within the chip. Current mode control and external compensation network make is easy and flexible to stabilize the system.
    The FP1209 is available in the small footprint SOP-8L(EP) packages to fit in space-saving PCB layout for application fields.

Features
 Start-up Voltage: 2.8V
 Wide Supply Voltage Operating Range: 5V to 24V
 Precision Feedback Reference Voltage: 0.25V (Max.)
 Analog and Digital Dimming Control
 Shutdown Current: 6μA (Max.)
 Internal Fixed PWM frequency: 150KHz
 Internal Soft Start Function
 Output Over Voltage Protection (OVP)
 Switching MOSFET Over Current Protection (OCP)
 Over Temperature Protection (OTP)
 Package: SOP-8L(EP)

Applications
 LED Module
 Display Backlight
 Car Lighting
 Portable LED Lighting

本文共分 1

  • 上篇文章FP1207-异步升压控制IC
  • 下篇文章微桥20W-120W升压恒压输出模组
  •  
     

    版权所有 Copyright Micro Bridge Technology Co.,Ltd. All rights reserved.粤ICP备05065909号