UC3843B中文資料意法半導(dǎo)體數(shù)據(jù)手冊PDF規(guī)格書
廠商型號 |
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 |
135.57 Kbytes |
頁面數(shù)量 |
15 頁 |
生產(chǎn)廠商 | STMicroelectronics |
企業(yè)簡稱 |
STMICROELECTRONICS【意法半導(dǎo)體】 |
中文名稱 | 意法半導(dǎo)體(ST)集團官網(wǎng) |
原廠標識 | |
數(shù)據(jù)手冊 | |
更新時間 | 2024-10-26 9:20:00 |
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:
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
- 拓撲:
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:
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 |
23+ |
SOP-8 |
20000 |
詢價 | |||
ST |
22+ |
SOP-8 |
20000 |
全新原裝現(xiàn)貨!自家?guī)齑? |
詢價 | ||
STM |
2020+ |
DIP8 |
80000 |
只做自己庫存,全新原裝進口正品假一賠百,可開13%增 |
詢價 | ||
ST/意法 |
22 |
DIP8 |
15000 |
3月31原裝,微信報價 |
詢價 | ||
ON/ST |
2310+ |
SOP8DIP8 |
28000 |
優(yōu)勢代理渠道,原裝現(xiàn)貨,可全系列訂貨 |
詢價 | ||
ST/意法 |
10+ |
DIP8 |
880000 |
明嘉萊只做原裝正品現(xiàn)貨 |
詢價 | ||
ST |
23+ |
SOPDIP8 |
6000 |
全新原裝優(yōu)勢 |
詢價 | ||
2022 |
SOP |
8800 |
原廠原裝正品,價格超越代理 |
詢價 | |||
ONSEMI |
00/01+ |
SOP |
561 |
全新原裝100真實現(xiàn)貨供應(yīng) |
詢價 | ||
散新ST |
21+ |
DIP8 |
6000 |
絕對原裝現(xiàn)貨 |
詢價 |
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