KA3845集成電路（IC）的ACDC轉換器離線開關規(guī)格書PDF中文資料
| 廠商型號 |
KA3845 |
| 參數(shù)屬性 | KA3845 封裝/外殼為8-DIP（0.300"，7.62mm）；包裝為散裝；類別為集成電路（IC）的ACDC轉換器離線開關；產(chǎn)品描述：IC OFFLINE SWITCH 8DIP |
| 功能描述 | CurrentMode PWM Controller |
| 封裝外殼 | 8-DIP（0.300"，7.62mm） |
| 文件大小 |
558.75 Kbytes |
| 頁面數(shù)量 |
9 頁 |
| 生產(chǎn)廠商 | List of Unclassifed Manufacturers |
| 企業(yè)簡稱 |
ETC |
| 中文名稱 | 未分類制造商 |
| 原廠標識 |  |
| 數(shù)據(jù)手冊 | |
| 更新時間 | 2025-1-11 15:13:00 |
KA3845規(guī)格書詳情
DESCRIPTION
KA3842/43/44/45 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 UC3842A(AM) and UC3844A(AM) have UVLO thresholds of 16 V (on) and 10 V (off).
The corresponding thresholds for the UC3843A(AM)/45A(AM) are 8.4V (on) and 7.6V
(off). The UC3842A(AM) and UC3843A(AM) can operate within 100% duty cycle. The
UC3844A(AM) and UC3845A(AM) can operate within 50% duty cycle.
The UC384XA(AM) has Start-Up Current 0.17mA (typ).
FEATURES
? Low Start-Up and Operating Current
? High Current Totem Pole Output
? Undervoltage Lockout With Hysteresis
? Operating Frequency Up To 300KHz (384XA)
500KHz (384XAM
產(chǎn)品屬性
- 產(chǎn)品編號：
KA3845B
- 制造商：
onsemi
- 類別：
集成電路（IC） > AC DC 轉換器，離線開關
- 包裝：
散裝
- 內(nèi)部開關：
無
- 電壓 - 供電 (Vcc/Vdd)：
12V ~ 25V
- 占空比：
48%
- 頻率 - 開關：
最高 500kHz
- 控制特性：
頻率控制
- 工作溫度：
0°C ~ 70°C（TA）
- 封裝/外殼：
8-DIP（0.300"，7.62mm）
- 供應商器件封裝：
8-DIP
- 安裝類型：
通孔
- 描述：
IC OFFLINE SWITCH 8DIP
| 供應商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
|---|---|---|---|---|---|---|---|
SAMSUNG |
6000 |
面議 |
19 |
DIP-8 |
詢價 | ||
Freescale(飛思卡爾) |
18+ |
9800 |
代理進口原裝/實單價格可談 |
詢價 | |||
FAIRCILD |
22+ |
DIP-8 |
8000 |
原裝正品支持實單 |
詢價 | ||
FAIRCHILD |
1716+ |
SOP8 |
7500 |
只做原裝進口,假一罰十 |
詢價 | ||
FSC |
2023+ |
DIP/SOP |
50000 |
原裝現(xiàn)貨 |
詢價 | ||
FSC |
23+ |
DIP |
28000 |
原裝正品 |
詢價 | ||
N/A |
22+ |
DIP8 |
25000 |
只有原裝原裝,支持BOM配單 |
詢價 | ||
ST |
23+ |
DIP |
8000 |
只做原裝現(xiàn)貨 |
詢價 | ||
SAMSUNG/三星 |
2021+ |
SOP14 |
100500 |
一級代理專營品牌!原裝正品,優(yōu)勢現(xiàn)貨,長期排單到貨 |
詢價 | ||
FSC大量供貨 |
DIP |
68900 |
原包原標簽100%進口原裝常備現(xiàn)貨! |
詢價 |
