UC3845中文資料友臺半導(dǎo)體數(shù)據(jù)手冊PDF規(guī)格書
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) > 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 |
文件大小 |
874.34 Kbytes |
頁面數(shù)量 |
7 頁 |
生產(chǎn)廠商 | UMW Rightway 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(簡稱UMW?)官網(wǎng) |
原廠標(biāo)識 | |
數(shù)據(jù)手冊 | |
更新時間 | 2024-11-7 14:25:00 |
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:
無
- 時鐘同步:
無
- 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 |
20+ |
DIP-8 |
26580 |
全新原裝長期特價銷售 |
詢價 | ||
ST |
SOP14 |
197 |
一級代理,專注軍工、汽車、醫(yī)療、工業(yè)、新能源、電力 |
詢價 | |||
N/A |
23+ |
SMD |
90000 |
只做原裝 !全系列供應(yīng)可長期供貨穩(wěn)定價格優(yōu)勢! |
詢價 | ||
TI |
2020+ |
DIP/SOP |
16800 |
絕對原裝進口現(xiàn)貨,假一賠十,價格優(yōu)勢!? |
詢價 | ||
ON/安森美 |
2021+ |
SOP-8 |
8025 |
優(yōu)勢價格.十年專營渠道.深圳原裝現(xiàn)貨 |
詢價 | ||
UC |
22+ |
SOP8 |
5000 |
只做原裝,假一賠十 15118075546 |
詢價 | ||
ON/ST |
23+ |
SOT-23 |
980000 |
受權(quán)代理!全新原裝現(xiàn)貨特價熱賣! |
詢價 | ||
24+ |
DIP |
550 |
新 |
詢價 | |||
ST |
2020+ |
SOP14 |
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 | ||
ON |
23+ |
DIP SMD |
3000 |
原裝正品假一罰百!可開增票! |
詢價 |
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