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98ASB42564B中文资料安森美半导体数据手册PDF规格书
98ASB42564B规格书详情
The NCP1252 controller offers everything needed to build cost−
effective and reliable ac−dc switching supplies dedicated to ATX
power supplies. Thanks to the use of an internally fixed timer,
NCP1252 detects an output overload without relying on the auxiliary
Vcc. A Brown−Out input offers protection against low input voltages
and improves the converter safety. Finally a SOIC−8 package saves
PCB space and represents a solution of choice in cost sensitive project.
特性 Features
• Peak Current Mode Control
• Adjustable Switching Frequency up to 500 kHz
• Jittering Frequency ±5 of the Switching Frequency
• Latched Primary Over Current Protection with 10 ms Fixed Delay
• Delay Extended to 150 ms in E Version
• Delayed Operation Upon Start−up via an Internal Fixed Timer
(A, B and C versions only)
• Adjustable Soft−start Timer
• Auto−recovery Brown−Out Detection
• UC384X−like UVLO Thresholds
• Vcc Range from 9 V to 28 V with Auto−recovery UVLO
• Internal 160 ns Leading Edge Blanking
• Adjustable Internal Ramp Compensation
• +500 mA / –800 mA Source / Sink Capability
• Maximum 50 Duty Cycle: A Version
• Maximum 80 Duty Cycle: B Version
• Maximum 65 Duty Cycle: C Version
• Maximum 47.5 Duty Cycle: D & E Versions
• Ready for Updated No Load Regulation Specifications
• SOIC−8 and PDIP−8 Packages
• These are Pb−Free Devices
Typical Applications
• Power Supplies for PC Silver Boxes, Games Adapter...
• Flyback and Forward Converter
| 供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
|---|---|---|---|---|---|---|---|
MARVELL |
25+ |
65248 |
百分百原装现货 实单必成 |
询价 | |||
MARVELL |
24+ |
NA/ |
10 |
优势代理渠道,原装正品,可全系列订货开增值税票 |
询价 | ||
MARVELL |
20+ |
BGA |
19570 |
原装优势主营型号-可开原型号增税票 |
询价 | ||
MARVELL |
25+ |
BGA |
880000 |
明嘉莱只做原装正品现货 |
询价 | ||
MARVELL |
2450+ |
BGA |
8850 |
只做原装正品假一赔十为客户做到零风险!! |
询价 | ||
MARVELL |
25+23+ |
BGA |
21839 |
绝对原装正品全新进口深圳现货 |
询价 | ||
TE/泰科 |
2508+ |
/ |
233927 |
一级代理,原装现货 |
询价 | ||
MARVELL |
BGA |
100 |
一级代理 原装正品假一罚十价格优势长期供货 |
询价 | |||
MARVELL |
23+ |
NA |
19 |
原装正品代理渠道价格优势 |
询价 | ||
24+ |
5000 |
公司存货 |
询价 |


