5秒后页面跳转
捷配首页

Datasheet > CRCW08052001FRT1
CRCW08052001FRT1 PDF预览

CRCW08052001FRT1

更新时间： 2024-11-01 21:55:07
品牌 Logo 应用领域
安森美 - ONSEMI /
页数 文件大小 规格书
10页 97K
描述
Low-Cost 100 mA High-Voltage Buck and Buck-Boost Using NCP1052

阅读下载

中文翻译

获取价格

CRCW08052001FRT1 数据手册

 浏览型号CRCW08052001FRT1的Datasheet PDF文件第2页浏览型号CRCW08052001FRT1的Datasheet PDF文件第3页浏览型号CRCW08052001FRT1的Datasheet PDF文件第4页浏览型号CRCW08052001FRT1的Datasheet PDF文件第5页浏览型号CRCW08052001FRT1的Datasheet PDF文件第6页浏览型号CRCW08052001FRT1的Datasheet PDF文件第7页 
AND8098/D  
Low−Cost 100 mA  
High−Voltage Buck and  
Buck−Boost Using NCP1052  
Prepared by: Kahou Wong  
ON Semiconductor  
http://onsemi.com  
APPLICATION NOTE  
INTRODUCTION  
PRINCIPLE OF OPERATION  
This application note presents low-cost high-voltage  
Figure 1 shows the proposed buck and buck-boost  
100 mA non-isolated power supply using NCP1052 by  
buck and buck-boost topology. The NCP1052 is one of the  
latest low-cost switching controllers with integrated 700 V/  
300 mA power switch from ON Semiconductor. It is  
primarily designed for isolated 10 W-range flyback  
converter. If isolation is not needed, the IC can also be used  
as stepping-down buck and buck-boost converter for  
further cost saving by removing optocoupler and replacing  
the transformer by an inductor. The output current capability  
is 100 mA. The possible operating range is from input range  
between 20 Vdc and 700 Vdc to output range of 5.0 V or  
above with 100 mA. Typical efficiency around 65% is  
obtained in the 12 V buck demo board.  
converters. The rectifier circuit, which consists of capacitor  
C and diode D , is in the front end for AC or DC input  
3
3
voltage. Then, the NCP1052 is self-powered up from the  
rectified input voltage directly with a V capacitor C .  
CC  
2
When the switch inside the IC is opened, there is a voltage  
across Drain (D) and Source (S) pins of the IC. If this voltage  
is greater than 20 V, an internal current source I  
= 6.3 mA  
start  
(typ.) inside the IC charges up C and a voltage in C is built  
2
2
up for the operation of the IC. Comparing to the switching  
frequency, the V voltage level is in a lower-frequency  
CC  
7.5-8.5 V hysteresis loop. This V hysteresis loop is for  
CC  
frequency jittering features to minimize EMI and  
short-circuit fault timing function.  
Advantages of the proposed circuits include:  
D
Z
D
2
2
1
R
1
• Comparing to flyback, buck and buck-boost eliminates  
optocoupler and replaces transformer by an inductor for  
cost saving.  
FB  
C
D
1
D
L
3
D
S
• Buck and buck-boost offers smaller voltage stress in  
switches comparing to flyback. It minimizes the  
switching loss and increases efficiency.  
V
CC  
Z
1
Input  
C
Output  
C
3
C
2
• NCP105x can power up itself from the high input  
voltage with wide range between 20 Vdc and 700 Vdc.  
It needs no extra supply circuit.  
(a) Buck  
D
Z
2
D
1
2
• NCP105x operates at 44, 100, or 136 kHz and  
accommodates low-cost components such as aluminum  
electrolytic capacitors and powered-iron core magnetic.  
FB  
C
1
D
3
D
S
• NCP105x offers frequency jittering for reduced  
electromagnetic inference (EMI).  
• NCP105x offers thermal and short circuit fault  
protection.  
D
V
CC  
Z
1
C
R
Input  
Output  
L
1
C
3
C
2
(b) Buck-boost  
• Simple design as no control-loop compensation is  
concerned.  
Figure 1. Proposed Circuit Using NCP1052  
The proposed buck and buck-boost converters are very  
similar to each other. Their major difference is that buck  
provides a positive output voltage but buck-boost provides  
a negative output voltage referring to the input ground.  
In Figure 2a it is noted that in the buck topology the input  
voltage powers up the IC through the path across the  
inductor L and capacitor C. This charging path passes  
Semiconductor Components Industries, LLC, 2003  
1
Publication Order Number:  
June, 2003 - Rev. 1  
AND8098/D  
1234567...10

中文翻译

下载PDF

与CRCW08052001FRT1相关器件

型号 品牌 获取价格 描述 数据表
CRCW08052001FRT1-E3 VISHAY

获取价格

 		RESISTOR, METAL GLAZE/THICK FILM, 0.1W, 1%, 100ppm, 2000ohm, SURFACE MOUNT, 0805, CHIP
CRCW08052001FRT1-PB VISHAY

获取价格

 		RESISTOR, METAL GLAZE/THICK FILM, 0.1W, 1%, 100ppm, 2000ohm, SURFACE MOUNT, 0805, CHIP
CRCW08052001FRT2-E3 VISHAY

获取价格

 		RESISTOR, METAL GLAZE/THICK FILM, 0.1W, 1%, 100ppm, 2000ohm, SURFACE MOUNT, 0805, CHIP
CRCW08052001FRT5 VISHAY

获取价格

 		Fixed Resistor, Metal Glaze/thick Film, 0.125W, 2000ohm, 150V, 1% +/-Tol, 100ppm/Cel, Surf
CRCW08052001FRT5-E3 VISHAY

获取价格

 		RESISTOR, METAL GLAZE/THICK FILM, 0.125W, 1%, 100ppm, 2000ohm, SURFACE MOUNT, 0805, CHIP
CRCW08052002FB02-E3 VISHAY

获取价格

 		RESISTOR, METAL GLAZE/THICK FILM, 0.1W, 1%, 100ppm, 20000ohm, SURFACE MOUNT, 0805, CHIP
CRCW08052002FB02-PB VISHAY

获取价格

 		RESISTOR, METAL GLAZE/THICK FILM, 0.1W, 1%, 100ppm, 20000ohm, SURFACE MOUNT, 0805, CHIP
CRCW08052004DRT5 VISHAY

获取价格

 		Fixed Resistor, Metal Glaze/thick Film, 0.1W, 2000000ohm, 150V, 0.5% +/-Tol, 100ppm/Cel, S
CRCW0805200J200R20 VISHAY

获取价格

 		Fixed Resistor, Metal Glaze/thick Film, 0.125W, 20ohm, 150V, 5% +/-Tol, -200,200ppm/Cel, 0
CRCW0805200J200RG1 VISHAY

获取价格

 		Fixed Resistor, Metal Glaze/thick Film, 0.125W, 20ohm, 150V, 5% +/-Tol, -200,200ppm/Cel, 0

与CRCW08052001FRT1相关文章

您还可以找


热门产品
PCB打样/小批量
铝基板
BOM智能配单
PCBA制造
钣金
精密CNC
模具注塑
薄膜开关
精选活动
PCBA打样特惠
四六层板品质升级
铝基板品质升级
一体化电子制造
DFM下载
服务支持
企业认证
产品展示
工厂展示
工艺能力
积分商城
关于捷配
捷配简介
企业文化
公司动态
人才招聘
联系我们
帮助中心
下单流程
付款流程
开票流程
常见问题
全球PCB制造服务专线 400-613-0088

工作时间：9:00-21:00

CEO邮箱：ceo@jiepei.com

投诉邮箱：tousu@jiepei.com

捷配网-微信公众号 微信公众号
捷配网-微信公众号 抖音公众号
资质认证：
合作快递：
支付方式：
Copyright © 2024 Jiepei.com Inc. All Rights Reserved. 版权所有:杭州捷配信息科技有限公司 浙公网安备 33010502006866号 浙ICP备10014259号-119 营业执照ICP证