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LTC4230CGN PDF预览

LTC4230CGN

更新时间： 2024-02-06 12:16:27
品牌 Logo 应用领域
凌特 - Linear 控制器
页数 文件大小 规格书
36页 383K
描述
Triple Hot Swap Controller with Multifunction Current Control

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LTC4230CGN 技术参数

是否Rohs认证：符合生命周期：Transferred
零件包装代码：SSOP包装说明：SSOP,
针数：20Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.13Is Samacsys：N
可调阈值：YES模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码：R-PDSO-G20JESD-609代码：e3
长度：8.65 mm湿度敏感等级：1
信道数量：3功能数量：1
端子数量：20最高工作温度：85 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装代码：SSOP封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, SHRINK PITCH峰值回流温度（摄氏度）：260
认证状态：Not Qualified座面最大高度：1.75 mm
最大供电电压 (Vsup)：16.5 V最小供电电压 (Vsup)：2.7 V
标称供电电压 (Vsup)：3.3 V表面贴装：YES
温度等级：INDUSTRIAL端子面层：Matte Tin (Sn)
端子形式：GULL WING端子节距：0.635 mm
端子位置：DUAL处于峰值回流温度下的最长时间：30
宽度：3.9116 mmBase Number Matches：1

LTC4230CGN 数据手册

 浏览型号LTC4230CGN的Datasheet PDF文件第2页浏览型号LTC4230CGN的Datasheet PDF文件第3页浏览型号LTC4230CGN的Datasheet PDF文件第4页浏览型号LTC4230CGN的Datasheet PDF文件第5页浏览型号LTC4230CGN的Datasheet PDF文件第6页浏览型号LTC4230CGN的Datasheet PDF文件第7页 
LTC4230  
Triple Hot Swap Controller  
with Multifunction Current Control  
U
DESCRIPTIO  
FEATURES  
The LTC®4230 is a 3-channel Hot SwapTM controller that  
allows a board to be safely inserted and removed from a  
live backplane. Internal high side switch drivers control  
the gates of external N-channel MOSFETs for supply  
voltages ranging from 1.7V to 16.5V. The LTC4230 pro-  
vides soft-start and inrush current limiting during the  
programmable start-up period.  
■
Allows Safe Board Insertion and Removal  
from a Live Backplane  
Controls Three Supply Voltages from 1.7V to 16.5V  
with VCC1 ≥ VCC2 ≥ VCC3  
■
■
Programmable Soft-Start with Inrush Current  
Limiting, No External Gate Capacitor Required  
Faster Turn-Off Time with No Gate Capacitor  
Dual Level Overcurrent Fault Protection  
Programmable Overcurrent Response Time  
Programmable Overvoltage Protection  
Automatic Retry or Latched Mode Operation  
Independent N-Channel FET High Side Drivers  
User-Programmable Supply Voltage Power-Up Rate  
FBn Pin Monitors VOUTn and Signals RESETn  
Glitch Filter Eliminates Spurious RESETn Signals  
U
■
■
■
■
■
■
■
■
■
On-chip current limit comparators provide dual level  
circuit breaker protection. The slow comparators trip at  
CCn – 50mV and activate in 10µs or are programmed by  
an external filter capacitor. The fast comparators trip at  
VCCn – 150mV and typically respond in 500ns.  
V
Each FBn pin monitors its own output supply voltage and  
signals its RESET pin. The ON pin turns the chip on and  
offandcanbeusedforaresetfunction. TheLTC4230also  
provides additional functions including fault indication,  
autoretry or latchoff modes, programmable current limit  
response time based on the FAULT and FILTER pins’  
functionality.  
APPLICATIO S  
■
Electronic Circuit Breaker  
■
Hot Board Insertion and Removal (Either On  
Backplane or On Removable Card)  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
Hot Swap is a trademark of Linear Technology Corporation.  
■
Industrial High Side Switch/Circuit Breaker  
U
TYPICAL APPLICATIO  
3-Channel Hot Swap Controller  
BACKPLANE  
PCB EDGE  
CONNECTOR CONNECTOR  
R
Q1  
SENSE1  
0.007Ω  
V
3.3V  
5A  
(FEMALE)  
(MALE)  
IRF7413  
OUT1  
LONG  
LONG  
LONG  
V
CC1  
3.3V  
RX1  
10Ω  
R
Q2  
IRF7413  
SENSE2  
V
2.5V  
5A  
0.007Ω  
OUT2  
V
CC2  
2.5V  
CX1  
100nF  
Z1***  
Z2***  
R
Q3  
IRF7413  
V
SENSE3  
0.007Ω  
CC3  
V
1.8V  
5A  
1.8V  
OUT3  
RX3  
10Ω  
RX2  
10Ω  
6
7
8
16  
17  
18  
5
4
3
R8  
CX3  
100nF  
V
CC1  
SENSE 1 GATE 1  
V
SENSE 2 GATE 2  
V
SENSE 3 GATE 3  
CC2  
CC3  
5.1k  
1
R7  
10k  
Z3***  
FB3  
CX2  
100nF  
R9  
12k  
PCB CONNECTION SENSE  
SHORT  
2
RESET 3  
RESET 3  
FB2  
R10  
11k  
R1  
10k  
R2  
10k  
20  
LTC4230  
15  
13  
R11  
12k  
R6  
10k  
R5  
ON  
10k  
SHORT  
LONG  
FAULT  
GND  
FAULT  
GND  
19  
9
RESET 2  
RESET 1  
RESET 2  
RESET 1  
14  
12  
TIMER  
FILTER  
R12  
18k  
11  
10  
FB1  
R13  
12k  
C
*
C **  
FILTER  
15pF  
TIMER  
0.1µF  
* SYSTEM ON TIME: 6.2ms  
**CIRCUIT BREAKER RESPONSE TIME: 19.5µs  
***OPTIONAL  
4230 TA01  
Z1, Z2, Z3: SMAJ10  
4230f  
1
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