5秒后页面跳转
捷配首页

Datasheet > LTC4253B
LTC4253B PDF预览

LTC4253B

更新时间： 2024-11-29 00:54:31
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
24页 213K
描述
Negative Voltage Hot Swap Controllers in SOT-23

阅读下载

中文翻译

获取价格

LTC4253B 数据手册

 浏览型号LTC4253B的Datasheet PDF文件第2页浏览型号LTC4253B的Datasheet PDF文件第3页浏览型号LTC4253B的Datasheet PDF文件第4页浏览型号LTC4253B的Datasheet PDF文件第5页浏览型号LTC4253B的Datasheet PDF文件第6页浏览型号LTC4253B的Datasheet PDF文件第7页 
LTC4251B/LTC4251B-1/  
LTC4251B-2  
Negative Voltage  
Hot Swap Controllers in SOT-23  
FEATURES  
DESCRIPTION  
TheLTC®4251B/LTC4251B-1/LTC4251B-2negativevoltage  
Hot Swap™ controllers allow a board to be safely inserted  
and removed from a live backplane. Output current is con-  
trolled by three stages of current limiting: a timed circuit  
breaker, activecurrentlimitingandafastfeedforwardpath  
that limits peak current under worst-case catastrophic  
fault conditions.  
n
Allows Safe Board Insertion and Removal from a  
Live –48V Backplane  
n
Floating Topology Permits Very High Voltage  
Operation  
n
Programmable Analog Current Limit with Circuit  
Breaker Timer  
n
Fast Response Time Limits Peak Fault Current  
n
Improved Ruggedness Shunt Regulator  
Programmable undervoltage and overvoltage detectors  
disconnect the load whenever the input supply exceeds  
the desired operating range. The supply input is shunt  
regulated, allowing safe operation with very high supply  
voltages. A multifunction timer delays initial start-up and  
controls the circuit breaker’s response time.  
n
Programmable Timer  
n
Programmable Undervoltage/Overvoltage Protection  
n
Low Profile 6-Lead SOT-23 (ThinSOT™) Package  
APPLICATIONS  
The LTC4251B UV/OV thresholds are designed to match  
thestandardtelecomoperatingrangeof–43Vto–75V.The  
LTC4251B-1UV/OVthresholdsextendtheoperatingrange  
toencompass–36Vto–72V. TheLTC4251B-2implements  
a UV threshold of –43V only. The LTC4251B improves the  
ruggedness of the LTC4251 shunt regulator.  
n
Hot Board Insertion  
n
Electronic Circuit Breaker  
n
–48V Distributed Power Systems  
n
Negative Power Supply Control  
n
Central Office Switching  
n
Programmable Current Limiting Circuit  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and  
Hot Swap and ThinSOT are trademarks of Linear Technology Corporation. All other trademarks  
are the property of their respective owners.  
n
High Availability Servers  
Disk Arrays  
n
TYPICAL APPLICATION  
–48V, 2.5A Hot Swap Controller  
Start-Up Behavior  
–48RTN  
R
*
IN  
+
–48RTN  
(SHORT PIN)  
10k  
GATE  
5V/DIV  
C
L
LOAD  
500mW  
100μF  
R1  
402k  
1%  
V
OUT  
†
C
D
IN  
IN  
V
IN  
1μF  
DDZ13B**  
Q1  
IRF530S  
SENSE  
2.5A/DIV  
UV/OV GATE  
LTC4251B  
C1  
10nF  
3
4
TIMER SENSE  
1
R2  
32.4k  
1%  
R
10Ω  
C
R
V
V
S
EE  
OUT  
0.02Ω  
20V/DIV  
C
C
C
T
2
18nF  
150nF  
4251b12 TA01a  
–48V  
4251b12 TA01b  
1ms/DIV  
*TWO 0.25W RESISTORS IN SERIES FOR  
R
ON THE PCB ARE RECOMMENDED.  
IN  
**DIODES, INC.  
†RECOMMENDED FOR HARSH ENVIRONMENTS  
4251b12f  
1
1234567...24

中文翻译

下载PDF

与LTC4253B相关器件

型号 品牌 获取价格 描述 数据表
LTC4253BCGN#PBF Linear

获取价格

 		LTC4253B - -48V Hot Swap Controller with Sequencer; Package: SSOP; Pins: 16; Temperature R
LTC4253BCGN#TRPBF Linear

获取价格

 		LTC4253B - -48V Hot Swap Controller with Sequencer; Package: SSOP; Pins: 16; Temperature R
LTC4253BIGN#TRPBF Linear

获取价格

 		LTC4253B - -48V Hot Swap Controller with Sequencer; Package: SSOP; Pins: 16; Temperature R
LTC4253CGN Linear

获取价格

 		-48V Hot Swap Controller with Sequencer
LTC4253IGN Linear

获取价格

 		-48V Hot Swap Controller with Sequencer
LTC4253IGN#TR Linear

获取价格

 		LTC4253/LTC4253A - -48V Hot Swap Controller with Sequencer; Package: SSOP; Pins: 16; Tempe
LTC4253IGN#TRPBF Linear

获取价格

 		LTC4253/LTC4253A - -48V Hot Swap Controller with Sequencer; Package: SSOP; Pins: 16; Tempe
LTC4255 Linear

获取价格

 		Quad Network Power Controller with I2C Compatible Interface
LTC4255CG Linear

获取价格

 		Quad Network Power Controller with I2C Compatible Interface
LTC4255CG#PBF Linear

获取价格

 		LTC4255 - Quad Network Power Controller with I<sup>2</sup>C Compatible Interfa

与LTC4253B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