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MIC38HC42中文资料
MIC38HC42数据手册规格书PDF详情
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 50?A 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 (50?A 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
MIC38HC42产品属性
- 类型
描述
- 型号
MIC38HC42
- 制造商
MICREL
- 制造商全称
Micrel Semiconductor
- 功能描述
BiCMOS 1A Current-Mode PWM Controllers
MIC38HC42供应商...
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
深圳市星佑电子有限公司 |
MIC38HC42YM |
MICREL/麦瑞 |
21+ |
SOP8 |
6000 |
全新原装 公司现货 价格优 |
|
深圳市福安瓯科技有限公司 |
MIC38HC42BM |
MICREL |
25+ |
SOP-8 |
2500 |
福安瓯为您提供真芯库存,真诚服务 |
|
深圳市昌和盛利电子有限公司 |
MIC38HC42YN |
Micrel |
23+ |
8-DIP |
11923 |
||
深圳市富诚威科技有限公司 |
MIC38HC42BM |
MICREL |
24+ |
SMD8 |
3200 |
十年品牌!原装现货!!! |
|
深圳市卓越微芯电子有限公司 |
MIC38HC42YM |
MICREL |
2020+ |
SOP8 |
10 |
百分百原装正品 真实公司现货库存 本公司只做原装 可 |
|
深圳市欧立现代科技有限公司 |
MIC38HC42BMTR |
MICREL |
24+ |
SOT23 |
6980 |
原装现货,可开13%税票 |
|
深圳市豪迈兴电子有限公司 |
MIC38HC42YM |
MICREL |
24+ |
SOP-8 |
5632 |
公司原厂原装现货假一罚十!特价出售!强势库存! |
|
深圳市博浩通科技有限公司 |
MIC38HC42YM |
MICREL |
23+ |
SOP-8 |
7750 |
全新原装优势 |
|
深圳市振宏微科技有限公司 |
MIC38HC42YM |
MICREL |
23+ |
NA |
13650 |
原装正品,假一罚百! |
|
深圳市华斯顿科技有限公司 |
MIC38HC42YM |
MICREL |
22+23+ |
SOP8 |
30834 |
绝对原装正品全新进口深圳现货 |
MIC38HC42YN 价格
参考价格:¥9.0536
MIC38HC42 资料下载更多...
MIC38HC42 产品相关型号
- MAX6390XS19D3-T
- MIC29150-12BT
- MIC29152BT
- MIC29201-3.3BM
- MIC29201-4.8BT
- MIC2920A-12BT
- MIC2920A-4.8BS
- MIC2940A
- MIC29510
- MIC2951-02BN
- MIC29512BT
- MIC2954-02BS
- MIC29710
- MIC29710-3.3BT
- MIC29712BT
- MIC384-0BM
- MIC384-1BMM
- MIC384-2BMM
- MIC38C42-1BN
- MIC38HC43-1BN
- MIC39101-2.5BM
- MIC39101-5.0BM
- MIC39150-2.5BT
- MIC39300-2.5BU
- MIC39500-2.5BT
- MIC39501-2.5BU
- MIC4043
- MIC4420BN
- MIC4421
- MIC4421CM
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Micrel Semiconductor
Micrel(中文名一般称为麦瑞半导体或麦克雷尔,目前已被Microchip公司收购)在半导体领域取得了显著成就,尤其是在低噪声稳压IC、低压差稳压IC以及光通信产品等方面。成立于1978年的Micrel,是全球领先的模拟、以太网和高带宽市场IC解决方案制造商。自1981年起,Micrel正式具备半导体制造能力,从最初的代工模式发展成为自主研发和生产高质量模拟电源IC的公司。凭借超过二十年的生产经验,Micrel涵盖了CMOS、DMOS、Bipolar、NMOS和PMOS等多种制程技术,尤其在电源IC市场上占有重要地位。 Micrel于1994年12月在NASDAQ上市,并于1997年通过IS