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
廠商型號(hào) |
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 | Low Start-Up and Operating Current |
封裝外殼 | 8-SOIC(0.154",3.90mm 寬) |
文件大小 |
874.34 Kbytes |
頁面數(shù)量 |
7 頁 |
生產(chǎn)廠商 | Guangdong Youtai Semiconductor Co., Ltd. |
企業(yè)簡稱 |
UMW【友臺(tái)半導(dǎo)體】 |
中文名稱 | 廣東友臺(tái)半導(dǎo)體有限公司官網(wǎng) |
原廠標(biāo)識(shí) | |
數(shù)據(jù)手冊(cè) | |
更新時(shí)間 | 2025-1-28 20:00:00 |
UC3845B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(hào):
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):
是
- 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(hù):
限流,UVLO
- 控制特性:
頻率控制,軟啟動(dòng)
- 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(hào) | 品牌 | 批號(hào) | 封裝 | 庫存 | 備注 | 價(jià)格 |
---|---|---|---|---|---|---|---|
ON/安森美 |
22+ |
SOIC-8 |
100000 |
代理渠道/只做原裝/可含稅 |
詢價(jià) | ||
ST/意法 |
23+ |
NA/ |
23250 |
原裝現(xiàn)貨,當(dāng)天可交貨,原型號(hào)開票 |
詢價(jià) | ||
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(fèi)! |
詢價(jià) | ||
ST |
24+ |
DIP8 |
16800 |
絕對(duì)原裝進(jìn)口現(xiàn)貨,假一賠十,價(jià)格優(yōu)勢!? |
詢價(jià) | ||
ST |
DIP8 |
893993 |
集團(tuán)化配單-有更多數(shù)量-免費(fèi)送樣-原包裝正品現(xiàn)貨-正規(guī) |
詢價(jià) | |||
ST/意法 |
2018+ |
SOP-8 |
880000 |
明嘉萊只做原裝正品現(xiàn)貨 |
詢價(jià) | ||
DIP-8 |
23+ |
NA |
15659 |
振宏微專業(yè)只做正品,假一罰百! |
詢價(jià) | ||
ST |
DIP-8 |
8852 |
一級(jí)代理 原裝正品假一罰十 價(jià)格優(yōu)勢 實(shí)單帶接受價(jià) |
詢價(jià) | |||
ST |
589220 |
16余年資質(zhì) 絕對(duì)原盒原盤 更多數(shù)量 |
詢價(jià) | ||||
ST |
2015+ |
DIP |
5700 |
進(jìn)口原裝正品 能17%開增值發(fā)票 |
詢價(jià) |
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