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MIC38HC45-1BN集成電路（IC）的PMIC-穩(wěn)壓器-DCDC開(kāi)關(guān)式控制器規(guī)格書PDF中文資料
| 廠商型號(hào) |
MIC38HC45-1BN |
| 參數(shù)屬性 | MIC38HC45-1BN 封裝/外殼為14-DIP（0.300"，7.62mm）；包裝為卷帶（TR）；類別為集成電路（IC）的PMIC-穩(wěn)壓器-DCDC開(kāi)關(guān)式控制器；產(chǎn)品描述：IC REG CTRLR MULT TOPOLOGY 14DIP |
| 功能描述 | BiCMOS 1A Current-Mode PWM Controllers |
| 封裝外殼 | 14-DIP（0.300"，7.62mm） |
| 文件大小 |
74.02 Kbytes |
| 頁(yè)面數(shù)量 |
8 頁(yè) |
| 生產(chǎn)廠商 | Micrel Semiconductor |
| 企業(yè)簡(jiǎn)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(shí) |  |
| 數(shù)據(jù)手冊(cè) | |
| 更新時(shí)間 | 2025-5-28 23:00:00 |
| 人工找貨 | MIC38HC45-1BN價(jià)格和庫(kù)存，歡迎聯(lián)系客服免費(fèi)人工找貨 |
MIC38HC45-1BN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.
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(hào)：
MIC38HC45-1BN
- 制造商：
Microchip Technology
- 類別：
集成電路（IC） > PMIC - 穩(wěn)壓器 - DC DC 開(kāi)關(guān)式控制器
- 包裝：
卷帶（TR）
- 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，正激轉(zhuǎn)換器
- 輸出階段：
1
- 電壓 - 供電 (Vcc/Vdd)：
7.6V ~ 20V
- 占空比（最大）：
50%
- 同步整流器：
是
- 時(shí)鐘同步：
無(wú)
- 控制特性：
頻率控制
- 工作溫度：
-40°C ~ 85°C（TA）
- 安裝類型：
表面貼裝型
- 封裝/外殼：
14-DIP（0.300"，7.62mm）
- 供應(yīng)商器件封裝：
14-DIP
- 描述：
IC REG CTRLR MULT TOPOLOGY 14DIP
| 供應(yīng)商 | 型號(hào) | 品牌 | 批號(hào) | 封裝 | 庫(kù)存 | 備注 | 價(jià)格 |
|---|---|---|---|---|---|---|---|
MICROCHIP(美國(guó)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(jià) | ||
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?。?/div> |
詢價(jià) | ||
MICROCHIP/微芯 |
24+ |
N/A |
5000 |
原裝分貨 強(qiáng)勢(shì)渠道 |
詢價(jià) | ||
MicrochipTechnology |
24+ |
14-DIP |
66800 |
原廠授權(quán)一級(jí)代理,專注汽車、醫(yī)療、工業(yè)、新能源！ |
詢價(jià) | ||
MICROCHIP/微芯 |
21+ |
SOIC |
32543 |
MIC/微芯優(yōu)勢(shì)供應(yīng) 實(shí)單必成 可開(kāi)增值稅票 |
詢價(jià) | ||
MICREL/麥瑞 |
25+ |
SOP14 |
880000 |
明嘉萊只做原裝正品現(xiàn)貨 |
詢價(jià) | ||
MICREL |
24+ |
12 |
原裝現(xiàn)貨,可開(kāi)13%稅票 |
詢價(jià) | |||
MICREL |
23+ |
NA |
13650 |
原裝正品,假一罰百! |
詢價(jià) | ||
Micrel |
23+ |
14-SOIC |
11923 |
詢價(jià) | |||
Microchip(微芯) |
18+ |
9800 |
代理進(jìn)口原裝/實(shí)單價(jià)格可談 |
詢價(jià) |
