UC3843B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 |
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)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 | HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER |
封裝外殼 | 8-SOIC(0.154",3.90mm 寬) |
文件大小 |
239.47 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)體集團官網(wǎng) |
原廠標識 | |
數(shù)據(jù)手冊 | |
更新時間 | 2025-1-20 13:38:00 |
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/意法 |
23+ |
SOP8 |
6850 |
只做原廠原裝正品現(xiàn)貨!假一賠十! |
詢價 | ||
ST(意法) |
23+ |
15000 |
專業(yè)幫助客戶找貨 配單,誠信可靠! |
詢價 | |||
N/A |
24+ |
SOP |
35200 |
一級代理/放心購買 |
詢價 | ||
ST |
2023+ |
DIP |
80000 |
一級代理/分銷渠道價格優(yōu)勢 十年芯程一路只做原裝正品 |
詢價 | ||
ST(意法) |
2405+ |
Original |
50000 |
只做原裝優(yōu)勢現(xiàn)貨庫存,渠道可追溯 |
詢價 | ||
ST進口 |
20+ |
SOP8 |
2960 |
誠信交易大量庫存現(xiàn)貨 |
詢價 | ||
ST |
22+ |
DIP-8 |
95000 |
鄭重承諾只做原裝進口貨 |
詢價 | ||
ST |
22+ |
SOP8 |
66000 |
保證進口原裝現(xiàn)貨特價供應(yīng) |
詢價 | ||
ST/意法 |
2402+ |
DIP-8 |
8324 |
原裝正品!實單價優(yōu)! |
詢價 | ||
ON/安森美 |
SOP8 |
6698 |
詢價 |
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