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KA3845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

KA3845
廠商型號

KA3845

參數(shù)屬性

KA3845 封裝/外殼為8-DIP(0.300",7.62mm);包裝為散裝;類別為集成電路(IC)的ACDC轉(zhuǎn)換器離線開關(guān);產(chǎn)品描述:IC OFFLINE SWITCH 8DIP

功能描述

CurrentMode PWM Controller

封裝外殼

8-DIP(0.300",7.62mm)

文件大小

558.75 Kbytes

頁面數(shù)量

9

生產(chǎn)廠商 List of Unclassifed Manufacturers
企業(yè)簡稱

ETC

中文名稱

未分類制造商

原廠標(biāo)識
數(shù)據(jù)手冊

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更新時(shí)間

2025-4-7 20:49:00

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KA3845規(guī)格書詳情

DESCRIPTION

KA3842/43/44/45 are fixed frequency current mode PWM

controller. They are specially designed for OFF?Line and DC to DC converter applications

with a minimal external components. Internally implemented circuits include a trimmed

oscillator for precise duty cycle control, a temperature compensated reference, high gain

error amplifier, current sensing comparator, and a high current totempole output ideally

suited for driving a power MOSFET. Protection circuitry includes built undervoltage lockout

and current limiting.

The UC3842A(AM) and UC3844A(AM) have UVLO thresholds of 16 V (on) and 10 V (off).

The corresponding thresholds for the UC3843A(AM)/45A(AM) are 8.4V (on) and 7.6V

(off). The UC3842A(AM) and UC3843A(AM) can operate within 100% duty cycle. The

UC3844A(AM) and UC3845A(AM) can operate within 50% duty cycle.

The UC384XA(AM) has Start-Up Current 0.17mA (typ).

FEATURES

? Low Start-Up and Operating Current

? High Current Totem Pole Output

? Undervoltage Lockout With Hysteresis

? Operating Frequency Up To 300KHz (384XA)

500KHz (384XAM

產(chǎn)品屬性

  • 產(chǎn)品編號:

    KA3845B

  • 制造商:

    onsemi

  • 類別:

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

  • 包裝:

    散裝

  • 內(nèi)部開關(guān):

  • 電壓 - 供電 (Vcc/Vdd):

    12V ~ 25V

  • 占空比:

    48%

  • 頻率 - 開關(guān):

    最高 500kHz

  • 控制特性:

    頻率控制

  • 工作溫度:

    0°C ~ 70°C(TA)

  • 封裝/外殼:

    8-DIP(0.300",7.62mm)

  • 供應(yīng)商器件封裝:

    8-DIP

  • 安裝類型:

    通孔

  • 描述:

    IC OFFLINE SWITCH 8DIP

供應(yīng)商 型號 品牌 批號 封裝 庫存 備注 價(jià)格
F
24+
NA/
7862
原裝現(xiàn)貨,當(dāng)天可交貨,原型號開票
詢價(jià)
ICF
19+17+
SOP8
4612
一級代理,專注軍工、汽車、醫(yī)療、工業(yè)、新能源、電力
詢價(jià)
FAIRCHILD
23+
NA
19960
只做進(jìn)口原裝,終端工廠免費(fèi)送樣
詢價(jià)
ONSemiconductor
24+
8-DIP
66800
原廠授權(quán)一級代理,專注汽車、醫(yī)療、工業(yè)、新能源!
詢價(jià)
Fairchild/ON
21+
8DIP
13880
公司只售原裝,支持實(shí)單
詢價(jià)
SEC
DIP8
6500
一級代理 原裝正品假一罰十價(jià)格優(yōu)勢長期供貨
詢價(jià)
FAIRCHILD/仙童
22+
DIP
12245
現(xiàn)貨,原廠原裝假一罰十!
詢價(jià)
FSC
23+
DIP
28000
原裝正品
詢價(jià)
KA
2020+
DIP
5000
百分百原裝正品 真實(shí)公司現(xiàn)貨庫存 本公司只做原裝 可
詢價(jià)
15800
24+
SOP/DIP
6980
原裝現(xiàn)貨,可開13%稅票
詢價(jià)