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MIC38HC44-1BM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 |
MIC38HC44-1BM |
| 參數(shù)屬性 | MIC38HC44-1BM 封裝/外殼為14-SOIC（0.154"，3.90mm 寬）；包裝為散裝；類別為集成電路（IC）的ACDC轉(zhuǎn)換器離線開關(guān)；產(chǎn)品描述：IC OFFLINE SW MULT TOP 14SOIC |
| 功能描述 | BiCMOS 1A Current-Mode PWM Controllers |
| 封裝外殼 | 14-SOIC（0.154"，3.90mm 寬） |
| 文件大小 |
74.02 Kbytes |
| 頁面數(shù)量 |
8 頁 |
| 生產(chǎn)廠商 | Micrel Semiconductor |
| 企業(yè)簡稱 |
MICREL【麥瑞半導(dǎo)體】 |
| 中文名稱 | 麥瑞半導(dǎo)體官網(wǎng) |
| 原廠標(biāo)識 |  |
| 數(shù)據(jù)手冊 | |
| 更新時間 | 2025-8-3 23:00:00 |
| 人工找貨 | MIC38HC44-1BM價格和庫存，歡迎聯(lián)系客服免費(fèi)人工找貨 |
MIC38HC44-1BM規(guī)格書詳情
General Description
The MIC38HC4x family are fixed frequency current-mode PWM controllers with 1A drive current capability. Micrel’s BiCMOS devices are pin-compatible with 384x bipolar devices. Their high output drive, with fast rise and fall times, combined with low startup current make it an ideal PWM controller where high efficiency is required.
Undervoltage lockout circuitry allows the ’42 and ’44 versions to start up at 14.5V and operate down to 9V, and the ’43 and ’45 versions start at 8.4V with operation down to 7.6V. All versions operate up to 20V.
When compared to bipolar UC384x devices operating from a 15V supply, start-up current has been reduced to 50μA typical and operating current has been reduced to 4.0 mA typical. Decreased output rise and fall times drive larger MOSFETs, and rail-to-rail output capability increases efficiency, especially at lower supply voltages. The MIC38HC4x also features a trimmed oscillator discharge current and bandgap reference.
特性 Features
? Fast 20ns output rise and 15ns output fall times
? –40°C to +85°C temperature range exceeds UC284x specifications
? High-performance, low-power BiCMOS Process
? Ultralow start-up current (50μA typical)
? Low operating current (4mA typical)
? High output drive (1A peak current, HC version)
? CMOS outputs with rail-to-rail swing
? Current-mode operation up to 500kHz
? Trimmed 5V bandgap reference
? Pin-for-pin compatible with UC3842/3843/3844/3845(A)
? Trimmed oscillator discharge current
? UVLO with hysteresis
? Low cross-conduction currents
Applications
? Current-mode, off-line, switched-mode power supplies
? Current-mode, dc-to-dc converters.
? Step-down “buck” regulators
? Step-up “boost” regulators
? Flyback, isolated regulators
? Forward converters
? Synchronous FET converters
產(chǎn)品屬性
- 產(chǎn)品編號：
MIC38HC44-1BM
- 制造商：
Microchip Technology
- 類別：
集成電路（IC） > AC DC 轉(zhuǎn)換器，離線開關(guān)
- 包裝：
散裝
- 輸出隔離：
隔離
- 內(nèi)部開關(guān)：
是
- 拓?fù)洌?/span>
升壓，降壓，反激，正激
- 電壓 - 供電 (Vcc/Vdd)：
9V ~ 20V
- 占空比：
50%
- 頻率 - 開關(guān)：
500kHz
- 控制特性：
頻率控制
- 工作溫度：
-40°C ~ 150°C（TJ）
- 封裝/外殼：
14-SOIC（0.154"，3.90mm 寬）
- 供應(yīng)商器件封裝：
14-SOIC
- 安裝類型：
表面貼裝型
- 描述：
IC OFFLINE SW MULT TOP 14SOIC
| 供應(yīng)商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
|---|---|---|---|---|---|---|---|
MICROCHIP(美國微芯) |
24+ |
SOP14 |
7350 |
現(xiàn)貨供應(yīng),當(dāng)天可交貨!免費(fèi)送樣,原廠技術(shù)支持!!! |
詢價 | ||
Microchip |
24+ |
14SOIC |
10000 |
全新原廠原裝，進(jìn)口正品現(xiàn)貨，正規(guī)渠道可含稅??！ |
詢價 | ||
Micrel |
25+ |
25000 |
原廠原包 深圳現(xiàn)貨 主打品牌 假一賠百 可開票! |
詢價 | |||
MICREL/麥瑞 |
25+ |
SOP14 |
880000 |
明嘉萊只做原裝正品現(xiàn)貨 |
詢價 | ||
MICREL/麥瑞 |
22+ |
NA |
35000 |
原裝現(xiàn)貨,假一罰十 |
詢價 | ||
MICROCHIP/微芯 |
23+ |
14SOIC |
35200 |
只做原裝主打品牌QQ詢價有詢必回 |
詢價 | ||
MICROCHIP(美國微芯) |
2447 |
SOIC-14 |
31500 |
54個/管一級代理專營品牌!原裝正品,優(yōu)勢現(xiàn)貨,長期 |
詢價 | ||
MICREL/麥瑞 |
23+ |
NA |
1054 |
電子元器件供應(yīng)原裝現(xiàn)貨. 優(yōu)質(zhì)獨(dú)立分銷。原廠核心渠道 |
詢價 | ||
MICREL/麥瑞 |
23+ |
NA |
13000 |
原廠授權(quán)一級代理,專業(yè)海外優(yōu)勢訂貨,價格優(yōu)勢、品種 |
詢價 | ||
MICROCHIP/微芯 |
24+ |
N/A |
5000 |
原裝分貨 強(qiáng)勢渠道 |
詢價 |
