UC3843B中文資料意法半導(dǎo)體數(shù)據(jù)手冊(cè)PDF規(guī)格書
廠商型號(hào) |
UC3843B |
參數(shù)屬性 | UC3843B 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) > AC DC 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 PWM CONTROLLER |
文件大小 |
239.47 Kbytes |
頁面數(shù)量 |
15 頁 |
生產(chǎn)廠商 | STMicroelectronics |
企業(yè)簡(jiǎn)稱 |
STMICROELECTRONICS【意法半導(dǎo)體】 |
中文名稱 | 意法半導(dǎo)體(ST)集團(tuán)官網(wǎng) |
原廠標(biāo)識(shí) | |
數(shù)據(jù)手冊(cè) | |
更新時(shí)間 | 2024-11-16 20:00:00 |
UC3843B規(guī)格書詳情
DESCRIPTION
The UC384xB family of control ICs provides the necessary features to implement off-line or DC to DC fixed frequency current mode control schemes with a minimal external parts count. Internally implemented circuits include a trimmed oscillator for precise DUTY CYCLE CONTROL under voltage lockout featuring start-up current less than 0.5mA, a precision reference trimmed for accuracy at the error amp input, logic to insure latched operation, a PWM comparator which also provides current limit control, and a totem pole output stage designed to source or sink high peak current. The output stage, suitable for driving N-Channel MOSFETs, is low in the offstate.
■ TRIMMED OSCILLATOR FOR PRECISE FREQUENCY CONTROL
■ OSCILLATOR FREQUENCY GUARANTEED AT 250kHz
■ CURRENT MODE OPERATION TO 500kHz
■ 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 START-UP AND OPERATING CURRENT
產(chǎn)品屬性
- 產(chǎn)品編號(hào):
UC3843B
- 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:
97%
- 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 |
---|---|---|---|---|---|---|---|
UC |
23+ |
NA/ |
53250 |
原裝現(xiàn)貨,當(dāng)天可交貨,原型號(hào)開票 |
詢價(jià) | ||
ST特價(jià)特價(jià) |
23+ |
SOP-8 |
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/意法 |
22+ |
DIP-8 |
9800 |
只做原裝正品假一賠十!正規(guī)渠道訂貨! |
詢價(jià) | ||
N/A |
21+ |
SOP |
35200 |
一級(jí)代理/放心購買 |
詢價(jià) | ||
UMW(廣東友臺(tái)半導(dǎo)體) |
24+ |
SOP-8 |
5000 |
誠信服務(wù),絕對(duì)原裝原盤。 |
詢價(jià) | ||
ON/ST |
23+ |
SOP8DIP8 |
30000 |
公司新到進(jìn)口原裝現(xiàn)貨假一賠十 |
詢價(jià) | ||
原裝 |
24+ |
標(biāo)準(zhǔn) |
46484 |
熱賣原裝進(jìn)口 |
詢價(jià) | ||
ST進(jìn)口 |
20+ |
SOP8 |
2960 |
誠信交易大量庫存現(xiàn)貨 |
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) | |||
ON/安森美 |
22+ |
DIP-8 |
50000 |
只做原裝正品,假一罰十,歡迎咨詢 |
詢價(jià) |
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