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MIC38HC43BM中文资料PDF规格书

MIC38HC43BM
厂商型号

MIC38HC43BM

参数属性

MIC38HC43BM 封装/外壳为8-SOIC(0.154",3.90mm 宽);包装为管件;类别为集成电路(IC) > PMIC - 稳压器 - DC DC 开关式控制器;产品描述:IC REG CTRLR MULT TOPOLOGY 8SOIC

功能描述

BiCMOS 1A Current-Mode PWM Controllers

文件大小

74.02 Kbytes

页面数量

8

生产厂商 Micrel Semiconductor
企业简称

Micrel麦瑞半导体

中文名称

麦克雷尔|麦瑞半导体官网

原厂标识
数据手册

下载地址一下载地址二

更新时间

2024-5-28 17:29:00

MIC38HC43BM规格书详情

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 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

产品属性

  • 产品编号:

    MIC38HC43BM

  • 制造商:

    Microchip Technology

  • 类别:

    集成电路(IC) > PMIC - 稳压器 - DC DC 开关式控制器

  • 包装:

    管件

  • 输出类型:

    晶体管驱动器

  • 功能:

    升压,降压,升压/降压

  • 输出配置:

    正,可提供隔离

  • 拓扑:

    升压,降压,反激,正激转换器

  • 输出阶段:

    1

  • 电压 - 供电 (Vcc/Vdd):

    7.6V ~ 20V

  • 占空比(最大):

    96%

  • 同步整流器:

  • 时钟同步:

  • 控制特性:

    频率控制

  • 工作温度:

    -40°C ~ 85°C(TA)

  • 安装类型:

    表面贴装型

  • 封装/外壳:

    8-SOIC(0.154",3.90mm 宽)

  • 供应商器件封装:

    8-SOIC

  • 描述:

    IC REG CTRLR MULT TOPOLOGY 8SOIC

供应商 型号 品牌 批号 封装 库存 备注 价格
MICREL
23+
SOP
18000
询价
MIC
23+
SOP8
11923
询价
MIC
20+
SOP
2960
诚信交易大量库存现货
询价
MICREL
2020+
SOP8
35000
100%进口原装正品公司现货库存
询价
SOP-8
23+
NA
15659
振宏微专业只做正品,假一罚百!
询价
MicrochipTechnology
23+
8-SOIC
66800
原装正品现货
询价
MICREL
2021+
SOP8
6721
百分百原装正品
询价
Micrel(麦瑞)
23+
NA
20094
正纳10年以上分销经验原装进口正品做服务做口碑有支持
询价
MIC
2339+
SOP8
5632
公司原厂原装现货假一罚十!特价出售!强势库存!
询价
MIC
21+
SOP-8
6500
全新原装现货
询价