首頁>UC3845B>規(guī)格書詳情

UC3845B集成電路(IC)的ACDC轉(zhuǎn)換器離線開關(guān)規(guī)格書PDF中文資料

UC3845B
廠商型號

UC3845B

參數(shù)屬性

UC3845B 封裝/外殼為8-SOIC(0.154",3.90mm 寬);包裝為卷帶(TR);類別為集成電路(IC)的ACDC轉(zhuǎn)換器離線開關(guān);產(chǎn)品描述:SOP-8 AC-DC CONTROLLERS \u0026 REGULA

功能描述

High Performance Current Mode Controllers

封裝外殼

8-SOIC(0.154",3.90mm 寬)

文件大小

399.29 Kbytes

頁面數(shù)量

19

生產(chǎn)廠商 ON Semiconductor
企業(yè)簡稱

ONSEMI安森美半導(dǎo)體

中文名稱

安森美半導(dǎo)體公司官網(wǎng)

原廠標(biāo)識
數(shù)據(jù)手冊

下載地址一下載地址二到原廠下載

更新時間

2025-1-25 10:02:00

UC3845B規(guī)格書詳情

The UC3844B, UC3845B series are high performance fixed frequency current mode controllers. They are specifically designed for Off?Line and dc?dc converter applications offering the designer a cost?effective solution with minimal external components. These integrated circuits feature an oscillator, a temperature compensated reference, high gain error amplifier, current sensing comparator, and a high current totem pole output ideally suited for driving a power MOSFET.

Features

? Trimmed Oscillator for Precise Frequency Control

? Oscillator Frequency Guaranteed at 250 kHz

? Current Mode Operation to 500 kHz Output Switching Frequency

? Output Deadtime Adjustable from 50 to 70

? Automatic Feed Forward Compensation

? Latching PWM for Cycle?By?Cycle Current Limiting

? Internally Trimmed Reference with Undervoltage Lockout

? High Current Totem Pole Output

? Undervoltage Lockout with Hysteresis

? Low Startup and Operating Current

? Pb?Free Packages are Available

產(chǎn)品屬性

  • 產(chǎn)品編號:

    UC3845B

  • 制造商:

    UTD Semiconductor

  • 類別:

    集成電路(IC) > AC DC 轉(zhuǎn)換器,離線開關(guān)

  • 包裝:

    卷帶(TR)

  • 輸出隔離:

    非隔離

  • 內(nèi)部開關(guān):

  • 拓?fù)洌?/span>

    反激,升壓

  • 電壓 - 供電 (Vcc/Vdd):

    7.6V ~ 30V

  • 占空比:

    48%

  • 頻率 - 開關(guān):

    50kHz,52kHz

  • 故障保護:

    限流,UVLO

  • 控制特性:

    頻率控制,軟啟動

  • 工作溫度:

    0°C ~ 70°C(TA)

  • 封裝/外殼:

    8-SOIC(0.154",3.90mm 寬)

  • 供應(yīng)商器件封裝:

    8-SOP

  • 安裝類型:

    表面貼裝型

  • 描述:

    SOP-8 AC-DC CONTROLLERS \u0026 REGULA

供應(yīng)商 型號 品牌 批號 封裝 庫存 備注 價格
ST
2022
DIP
2600
全新原裝現(xiàn)貨熱賣
詢價
ST
23+
8
16900
正規(guī)渠道,只有原裝!
詢價
ST
16+
DIP
30
全新原裝現(xiàn)貨
詢價
ST/意法
23+
SOP8
50000
全新原裝正品現(xiàn)貨,支持訂貨
詢價
ST
23+
DIP
1800
十七年VIP會員,誠信經(jīng)營,一手貨源,原裝正品可零售!
詢價
ST/HECHDZ
23+
SOP
58000
全新原廠原裝正品現(xiàn)貨,可提供技術(shù)支持、樣品免費!
詢價
UMW
24+
con
367
現(xiàn)貨常備產(chǎn)品原裝可到京北通宇商城查價格https://www.jbchip.com/index
詢價
ST/意法
22+
DIP
18000
只做全新原裝,支持BOM配單,假一罰十
詢價
ST
DIP-8
8852
一級代理 原裝正品假一罰十 價格優(yōu)勢 實單帶接受價
詢價
ST/意法
23+
DIP
11200
原廠授權(quán)一級代理、全球訂貨優(yōu)勢渠道、可提供一站式BO
詢價