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LR745N8价格
参考价格：￥3.1256
型号：LR745N8-G 品牌：Microchip 备注：这里有LR745N8多少钱，2025年最近7天走势，今日出价，今日竞价，LR745N8批发/采购报价，LR745N8行情走势销售排行榜，LR745N8报价。| 型号 | 功能描述 | 生产厂家 企业 | LOGO | 操作 |
|---|---|---|---|---|
LR745N8 | High Input Voltage SMPS Start-up Circuit General Description The Supertex LR745 is a high input voltage SMPS startup circuit. The LR745 is ideally suited for use with industry standard low voltage PWM ICs having start thresholds of 13.9 - 18.0V. It allows the PWM ICs to be operated from rectified 120 or 240VAC lines, and eliminates the | SUTEX |   | |
High Input Voltage SMPS Start-up General Description The Supertex LR745 is a high input voltage SMPS startup circuit. The LR745 is ideally suited for use with industry standard low voltage PWM ICs having start thresholds of 13.9 - 18.0V. It allows the PWM ICs to be operated from rectified 120 or 240VAC lines, and eliminates the | SUTEX | | ||
High Input Voltage SMPS Start-up General Description The Supertex LR745 is a high input voltage SMPS startup circuit. The LR745 is ideally suited for use with industry standard low voltage PWM ICs having start thresholds of 13.9 - 18.0V. It allows the PWM ICs to be operated from rectified 120 or 240VAC lines, and eliminates the | SUTEX | | ||
High-Input Voltage SMPS Start-up Description LR745 is a high input voltage SMPS start-up circuit. LR745 is ideally suited for use with industry standard low-voltage, Pulse-Width Modulation (PWM) ICs having start thresholds of 13.9 to 18.0V. It allows the PWM ICs to be operated from rectified 120 or 240VAC lines, and eliminates t | Microchip 微芯科技 | | ||
High-Input Voltage SMPS Start-up Description LR745 is a high input voltage SMPS start-up circuit. LR745 is ideally suited for use with industry standard low-voltage, Pulse-Width Modulation (PWM) ICs having start thresholds of 13.9 to 18.0V. It allows the PWM ICs to be operated from rectified 120 or 240VAC lines, and eliminates t | Microchip 微芯科技 | | ||
High-Input Voltage SMPS Start-up Description LR745 is a high input voltage SMPS start-up circuit. LR745 is ideally suited for use with industry standard low-voltage, Pulse-Width Modulation (PWM) ICs having start thresholds of 13.9 to 18.0V. It allows the PWM ICs to be operated from rectified 120 or 240VAC lines, and eliminates t | Microchip 微芯科技 | | ||
封装/外壳：TO-243AA 包装：卷带（TR）剪切带（CT）Digi-Reel® 得捷定制卷带 描述：IC CTRLR PWM SMPS SOT89-3 集成电路（IC） 电源管理 - 专用 | Microchip 微芯科技 | |
LR745N8产品属性
- 类型
描述
- 型号
LR745N8
- 功能描述
开关变换器、稳压器与控制器 Pwr Sup Start-Up IC
- RoHS
否
- 制造商
Texas Instruments
- 输出电压
1.2 V to 10 V
- 输出电流
300 mA
- 输入电压
3 V to 17 V
- 开关频率
1 MHz
- 安装风格
SMD/SMT
- 封装/箱体
WSON-8
- 封装
Reel
| IC供应商 | 芯片型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
|---|---|---|---|---|---|---|---|
MICROCHIP(美国微芯) |
24+ |
SOT-89-3 |
2317 |
深耕行业12年,可提供技术支持。 |
|||
SUPERTEX |
24+ |
NA/ |
568 |
优势代理渠道,原装正品,可全系列订货开增值税票 |
|||
SUPERTEX |
22+ |
SOT89 |
100000 |
代理渠道/只做原装/可含税 |
|||
SHARP/夏普 |
25+ |
DIP |
54648 |
百分百原装现货 实单必成 欢迎询价 |
|||
MICROCHIP/微芯 |
24+ |
SOT-89-3 |
860000 |
明嘉莱只做原装正品现货 |
|||
Microchip |
24+ |
10000 |
全新原厂原装，进口正品现货，正规渠道可含税！！ |
||||
MICROCHIP/微芯 |
22+ |
SOT-89-3 |
12245 |
现货,原厂原装假一罚十! |
|||
SUTEX |
25+ |
SOT89 |
2987 |
只售原装自家现货!诚信经营!欢迎来电! |
|||
MICROCHIP/微芯 |
24+ |
7671 |
原装正品.优势专营 |
||||
Microchip Technology |
25+ |
TO-243AA |
9350 |
独立分销商 公司只做原装 诚心经营 免费试样正品保证 |
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LR745N8规格书下载地址
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2021-10-20LR745-高输入电压开关电源启动电路
一般描述 Supertex公司LR7的是一个高输入电压开关电源启动电路。该LR7非常适合使用低与行业标准电压型PWM集成电路具有13.9V到18.8V启动阈值。这使PWM IC能够从经营或纠正120伏240V交流线路，并消除了经常使用的功率电阻用于这一目的。该LR7内部电路允许PWM IC的工作在他们的启动阈值低于VCC电压 电压启动后。辅助电压可以比少启动阈值电压，这对于提高效率允许。从高电压线电流仅绘制在启动时期。启动后，内部高压线路断开从IC从而减少了连续功率耗散降至最低。... 特点 到450V25V的工作输入电压范
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特点 接受输入从15V到450V 与行业标准的PWM IC的兼容。 输出电流高达3毫安连续，30毫安高峰 电源电流通常为50μA 线路调整通常0.1mV/ V 可修剪输出从8.0V至12V可以增加❏输出电流150mA的外部FET 应用 关闭式开关电源启动电路（脉冲负载） 低功耗稳压器 嘈杂输入的稳压器 概述 Supertex公司的LR6是高输入电压，低输出电流线性稳压器。它有一个三端固定输
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