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UC3845集成電路(IC)的DC-DC開關(guān)控制器規(guī)格書PDF中文資料

UC3845
廠商型號

UC3845

參數(shù)屬性

UC3845 封裝/外殼為14-SOIC(0.154",3.90mm 寬);包裝為卷帶(TR);類別為集成電路(IC)的DC-DC開關(guān)控制器;產(chǎn)品描述:IC REG CTRLR BUCK/BOOST 14SOIC

功能描述

Low Start-Up and Operating Current

封裝外殼

14-SOIC(0.154",3.90mm 寬)

文件大小

874.34 Kbytes

頁面數(shù)量

7

生產(chǎn)廠商 Guangdong Youtai Semiconductor Co., Ltd.
企業(yè)簡稱

UMW友臺半導(dǎo)體

中文名稱

廣東友臺半導(dǎo)體有限公司官網(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

2025-2-2 23:00:00

UC3845規(guī)格書詳情

Description

The 3842/43/44/45 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 3842 and 3844 have UVLO thresholds of 16 V (on) and 10 V (off). The corresponding thresholds for the 3843/

45 are 8.4V (on) and 7.6V (off). The 3842) and 3843 can operate within 100 duty cycle. The 3844 and 3845 can operate within 50 duty

cycle.

The 384X has Start-Up Current 0.5mA (typ).

Features

Low Start-Up and Operating Current

High Current Totem Pole Output

Undervoltage Lockout With Hysteresis

Operating Frequency Up To 500KHz

產(chǎn)品屬性

  • 產(chǎn)品編號:

    UC3845AD

  • 制造商:

    Microsemi Corporation

  • 類別:

    集成電路(IC) > DC-DC 開關(guān)控制器

  • 包裝:

    卷帶(TR)

  • 輸出類型:

    晶體管驅(qū)動器

  • 功能:

    升壓,降壓

  • 輸出配置:

    正,可提供隔離

  • 拓撲:

    升壓,降壓,反激,正激

  • 輸出階段:

    1

  • 電壓 - 供電 (Vcc/Vdd):

    7.6V ~ 30V

  • 頻率 - 開關(guān):

    最高 500kHz

  • 占空比(最大):

    48%

  • 同步整流器:

  • 時鐘同步:

  • 控制特性:

    頻率控制

  • 工作溫度:

    0°C ~ 70°C(TA)

  • 安裝類型:

    表面貼裝型

  • 封裝/外殼:

    14-SOIC(0.154",3.90mm 寬)

  • 供應(yīng)商器件封裝:

    14-SOIC

  • 描述:

    IC REG CTRLR BUCK/BOOST 14SOIC

供應(yīng)商 型號 品牌 批號 封裝 庫存 備注 價格
ON(安森美)
23+
標(biāo)準(zhǔn)封裝
8548
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詢價
CHN
23+
NA/
16053
原裝現(xiàn)貨,當(dāng)天可交貨,原型號開票
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ST
2020+
SOP14
80000
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TI
24+
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16800
絕對原裝進口現(xiàn)貨,假一賠十,價格優(yōu)勢!?
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ST
DIP-8
699839
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ON
23+
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9896
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N/A
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90000
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詢價
TI
2024
PDIP|8
55200
一級代理,專注軍工、汽車、醫(yī)療、工業(yè)、新能源、電力高端行業(yè)供應(yīng)商
詢價
ON
24+
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12000
原廠原裝渠道剛到新貨假一罰十
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TI-ON
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19059
全新原裝正品!現(xiàn)貨庫存!可開13點增值稅發(fā)票
詢價