UC2844N集成電路（IC）的PMIC-穩(wěn)壓器-DCDC開關(guān)式控制器規(guī)格書PDF中文資料
| 廠商型號(hào) |
UC2844N |
| 參數(shù)屬性 | UC2844N 封裝/外殼為8-DIP（0.300"，7.62mm）；包裝為卷帶（TR）剪切帶（CT）Digi-Reel? 得捷定制卷帶；類別為集成電路（IC）的PMIC-穩(wěn)壓器-DCDC開關(guān)式控制器；產(chǎn)品描述：IC PWM BOOST FLYBCK ISO CM 8DIP |
| 功能描述 | HIGH PERFORMANCE CURRENT MODE CONTROLLERS |
| 封裝外殼 | 8-DIP（0.300"，7.62mm） |
| 文件大小 |
376.23 Kbytes |
| 頁(yè)面數(shù)量 |
14 頁(yè) |
| 生產(chǎn)廠商 | ON Semiconductor |
| 企業(yè)簡(jiǎn)稱 |
ONSEMI【安森美半導(dǎo)體】 |
| 中文名稱 | 安森美半導(dǎo)體公司官網(wǎng) |
| 原廠標(biāo)識(shí) |  |
| 數(shù)據(jù)手冊(cè) | |
| 更新時(shí)間 | 2025-1-8 15:58:00 |
UC2844N規(guī)格書詳情
The UC3844, UC3845 series are high performance fixed frequency current mode controllers. They are specifically designed for Off?Line and DC?to?DC converter applications offering the designer a cost effective solution with minimal external components. These integrated circuits feature an oscillator, a temperature compensated reference, high gain error amplifier, current sensing comparator, and a high current totem pole output ideally suited for driving a power MOSFET.
Also included are protective features consisting of input and reference undervoltage lockouts each with hysteresis, cycle?by?cycle current limiting, a latch for single pulse metering, and a flip?flop which blanks the output off every other oscillator cycle, allowing output dead times to be programmed for 50 to 70.
These devices are available in an 8?pin dual?in?line plastic package as well as the 14?pin plastic surface mount (SOIC?14). The SOIC?14 package has separate power and ground pins for the totem pole output stage.
The UCX844 has UVLO thresholds of 16 V (on) and 10 V (off), ideally suited for off?line converters. The UCX845 is tailored for lower voltage applications having UVLO thresholds of 8.5 V (on) and 7.6 V (off).
Features
? Current Mode Operation to 500 kHz Output Switching Frequency
? Output Deadtime Adjustable from 50 to 70
? Automatic Feed Forward Compensation
? Latching PWM for Cycle?By?Cycle Current Limiting
? Internally Trimmed Reference with Undervoltage Lockout
? High Current Totem Pole Output
? Input Undervoltage Lockout with Hysteresis
? Low Startup and Operating Current
? Direct Interface with ON Semiconductor SENSEFET? Products
? Pb?Free Packages are Available
產(chǎn)品屬性
- 產(chǎn)品編號(hào)：
UC2844N
- 制造商：
Texas Instruments
- 類別：
集成電路（IC） > PMIC - 穩(wěn)壓器 - DC DC 開關(guān)式控制器
- 包裝：
卷帶（TR）剪切帶（CT）Digi-Reel? 得捷定制卷帶
- 輸出類型：
晶體管驅(qū)動(dòng)器
- 功能：
升壓，降壓，升壓/降壓
- 輸出配置：
正，可提供隔離
- 拓?fù)洌?/span>
升壓，降壓，反激，正激
- 輸出階段：
1
- 電壓 - 供電 (Vcc/Vdd)：
12V ~ 28V
- 頻率 - 開關(guān)：
最高 500kHz
- 占空比（最大）：
48%
- 同步整流器：
無
- 時(shí)鐘同步：
無
- 控制特性：
頻率控制
- 工作溫度：
-40°C ~ 85°C（TA）
- 安裝類型：
通孔
- 封裝/外殼：
8-DIP（0.300"，7.62mm）
- 供應(yīng)商器件封裝：
8-PDIP
- 描述：
IC PWM BOOST FLYBCK ISO CM 8DIP
| 供應(yīng)商 | 型號(hào) | 品牌 | 批號(hào) | 封裝 | 庫(kù)存 | 備注 | 價(jià)格 |
|---|---|---|---|---|---|---|---|
ON |
03+/ |
DIP-8/面劃傷 |
6000 |
絕對(duì)原裝自己現(xiàn)貨 |
詢價(jià) | ||
TI(德州儀器) |
23+ |
DIP-8 |
942 |
特價(jià)優(yōu)勢(shì)庫(kù)存質(zhì)量保證穩(wěn)定供貨 |
詢價(jià) | ||
TI(德州儀器) |
23+ |
DIP-8 |
5098 |
百分百原裝正品,可原型號(hào)開票 |
詢價(jià) | ||
TI/美國(guó)德州儀器 |
23+ |
DIP8 |
5000 |
公司只做原裝,可配單 |
詢價(jià) | ||
MOTOROLA/摩托羅拉 |
23+ |
DIP8 |
98900 |
原廠原裝正品現(xiàn)貨!! |
詢價(jià) | ||
ON |
24+ |
DIP8 |
4897 |
絕對(duì)原裝!現(xiàn)貨熱賣! |
詢價(jià) | ||
ON |
589220 |
16余年資質(zhì) 絕對(duì)原盒原盤 更多數(shù)量 |
詢價(jià) | ||||
TI |
21+ |
DIP-8 |
1516 |
十年信譽(yù),只做原裝,有掛就有現(xiàn)貨! |
詢價(jià) | ||
TI |
24+ |
DIP8 |
90000 |
一級(jí)代理商進(jìn)口原裝現(xiàn)貨、價(jià)格合理 |
詢價(jià) | ||
TI |
18+ |
DIP8 |
31043 |
全新原裝現(xiàn)貨,可出樣品,可開增值稅發(fā)票 |
詢價(jià) |
