TI公司LOGO標志
TI|TI德州儀器公司產品型號搜索
當前位置:TI > DC/DC開關穩壓器 > TI公司控制器(外部開關) > LM5119
TI(德州儀器)
LM5119技術文檔下載
LM5119技術文檔產品手冊下載
LM5119-產品圖片
LM5119-65V 寬輸入電壓雙路同步降壓控制器
TI(德州儀器)公司授權一級代理商
具備充足的TI芯片庫存
中國銷售額排名前十的TI代理商
提供TI公司產品的產品說明、應用、特性講解及圖例
LM5119 - 65V 寬輸入電壓雙路同步降壓控制器

LM5119是TI公司(德州儀器)的一款控制器(外部開關)產品,LM5119是65V 寬輸入電壓雙路同步降壓控制器,本站介紹了LM5119的產品說明、應用、特性等,并給出了與LM5119相關的TI元器件型號供參考.

LM5119 - LM5119 Wide Input Range Dual Synchronous Buck Controller (cn) (Rev. E) - TI德州儀器(Texas Instruments)

產品描述

The LM5119 is a dual synchronous buck controller intended for step-down regulator applications from a high voltage or widely varying input supply. The control method is based upon current mode control utilizing an emulated current ramp. Current mode control provides inherent line feed-forward, cycle-by-cycle current limiting and ease of loop compensation. The use of an emulated control ramp reduces noise sensitivity of the pulse-width modulation circuit, allowing reliable control of very small duty cycles necessary in high input voltage applications. The switching frequency is programmable from 50kHz to 750kHz. The LM5119 drives external high-side and low-side NMOS power switches with adaptive dead-time control. A user-selectable diode emulation mode enables discontinuous mode operation for improved efficiency at light load conditions. A high voltage bias regulator with automatic switch-over to external bias further improves efficiency. Additional features include thermal shutdown, frequency synchronization, cycle-by-cycle and hiccup mode current limit and adjustable line under-voltage lockout. The device is available in a power enhanced leadless LLP-32 package featuring an exposed die attach pad to aid thermal dissipation.

產品特性

  • Emulated peak current mode control
  • Wide operating range from 5.5V to 65V
  • Easily configurable for dual outputs or interleaved single output
  • Robust 3.3A peak gate drive
  • Switching frequency programmable to 750kHz
  • Optional diode emulation mode
  • Programmable output from 0.8V
  • Precision 1.5% voltage reference
  • Programmable current limit
  • Hiccup mode overload protection
  • Programmable soft-start
  • Programmable line under-voltage lockout
  • Automatic switch-over to external bias supply
  • Channel2 enable logic input
  • Thermal Shutdown
  • Leadless LLP32 (5mm x 5mm) package
  • 下面可能是您感興趣的TI公司(德州儀器)控制器(外部開關)元器件
    TI公司|TI德州儀器|德州儀器TI公司代理商|TI芯片代理商
    TI公司產品現貨專家,訂購德州儀器公司產品不限最低起訂量,TI(德州儀器)產品大陸現貨即時發貨,香港庫存3-5天發貨,海外庫存7-10天發貨
    尋找全球TI代理商現貨貨源-TI公司電子元件在線訂購
    微乐麻将开挂怎么识别 江西快3走势图360 黑龙江快乐十分奖金对照表 体彩排列5走势图 甘肃快三和值走势图一定 上海投资理财平台 河北十一选五机选投注 浙江6+1开奖结果查询今天开奖结果查询结果 东方财富股票行情走势 甘肃快3形态走势图一定牛 甘肃快三走势图甘肃