位置：首页 > IC中文资料第6090页 > L4990
| 型号 | 功能描述 | 生产厂家 企业 | LOGO | 操作 |
|---|---|---|---|---|
L4990 | PRIMARY CONTROLLER DESCRIPTION This primary controller I.C., developed in BCD60II technology, has been designed to implement off line or DC-DC power supply applications using a fixed frequency current mode control. Based on a standard current mode PWM control ler this device includes some features as programmable | STMICROELECTRONICS 意法半导体 |   | |
L4990 | PRIMARY CONTROLLER | STMICROELECTRONICS 意法半导体 | | |
PRIMARY CONTROLLER DESCRIPTION This primary controller I.C., developed in BCD60II technology, has been designed to implement off line or DC-DC power supply applications using a fixed frequency current mode control. Based on a standard current mode PWM control ler this device includes some features as programmable | STMICROELECTRONICS 意法半导体 | | ||
PRIMARY CONTROLLER DESCRIPTION This primary controller I.C., developed in BCD60II technology, has been designed to implement off line or DC-DC power supply applications using a fixed frequency current mode control. Based on a standard current mode PWM control ler this device includes some features as programmable | STMICROELECTRONICS 意法半导体 | | ||
PRIMARY CONTROLLER DESCRIPTION This primary controller I.C., developed in BCD60II technology, has been designed to implement off line or DC-DC power supply applications using a fixed frequency current mode control. Based on a standard current mode PWM control ler this device includes some features as programmable | STMICROELECTRONICS 意法半导体 | | ||
Automotive Dual Full Bridge Driver 文件：300.04 Kbytes Page：13 Pages | ALLEGRO | | ||
Automotive Dual Full Bridge Driver 文件：300.04 Kbytes Page：13 Pages | ALLEGRO | | ||
Dual N-Channel 100-V (D-S) MOSFET 文件：166.4 Kbytes Page：3 Pages | AnalogPower | | ||
Dual N-Channel 100-V (D-S) MOSFET 文件：368.09 Kbytes Page：5 Pages | AnalogPower | | ||
Impedance Analyzer 文件：4.12925 Mbytes Page：30 Pages | KEYSIGHT 是德科技 | |
L4990产品属性
- 类型
描述
- 型号
L4990
- 制造商
STMICROELECTRONICS
- 制造商全称
STMicroelectronics
- 功能描述
PRIMARY CONTROLLER
| IC供应商 | 芯片型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
|---|---|---|---|---|---|---|---|
ST |
24+ |
DIP16 |
90000 |
一级代理商进口原装现货、假一罚十价格合理 |
|||
ST |
2023+ |
3000 |
进口原装现货 |
||||
ST/意法 |
24+ |
NA/ |
610 |
优势代理渠道,原装正品,可全系列订货开增值税票 |
|||
ST/意法 |
00+ |
DIP-16 |
880000 |
明嘉莱只做原装正品现货 |
|||
ST |
14+ |
DIP16 |
9860 |
大量原装进口现货,一手货源,一站式服务,可开17%增 |
|||
24+ |
6430 |
原装现货/欢迎来电咨询 |
|||||
24+ |
DIP |
25 |
|||||
ST |
24+ |
DIP16 |
20000 |
全新原厂原装，进口正品现货，正规渠道可含税！！ |
|||
ST/意法 |
24+ |
DIP16 |
22055 |
郑重承诺只做原装进口现货 |
|||
ST/意法 |
2403+ |
DIP |
11809 |
原装现货!欢迎随时咨询! |
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L4990规格书下载地址
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L4990数据表相关新闻
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应用 笔记本电脑和亚笔记本电脑 笔顶和便携式设备 通信的计算机 描述 L4992是一个复杂的双PWM降压控制器和功率监视器用于笔记本电脑和/或电池供电设备。该设备生产的监管电源+3.3 V，+5.1 V和12V的电源在便携式使用和PCMCIA应用。内部架构允许操作最低数量的外部元件。一个非常高开关频率（200/300 kHz或外部可同步）优化其物理尺寸。同步整流和脉冲跳跃在降压模式优化整体部分效率在宽负载电流范围内（96％的效率@1A/5.1V和93％的效率@0.05A/5.1V。两个高性能的PWM控制器+3.3 V
2013-2-18
DdatasheetPDF页码索引
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