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LTC4252A-2IMS#TR PDF预览

LTC4252A-2IMS#TR

更新时间: 2024-09-17 18:25:39
品牌 Logo 应用领域
凌特 - Linear 光电二极管
页数 文件大小 规格书
36页 366K
描述
LTC4252/LTC4252A - Negative Voltage Hot Swap Controllers; Package: MSOP; Pins: 10; Temperature Range: -40°C to 85°C

LTC4252A-2IMS#TR 技术参数

是否Rohs认证: 不符合生命周期:Transferred
零件包装代码:MSOP包装说明:TSSOP,
针数:10Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.11可调阈值:YES
模拟集成电路 - 其他类型:POWER SUPPLY SUPPORT CIRCUITJESD-30 代码:S-PDSO-G10
JESD-609代码:e0长度:3 mm
湿度敏感等级:1信道数量:2
功能数量:1端子数量:10
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:TSSOP
封装形状:SQUARE封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度(摄氏度):235认证状态:Not Qualified
座面最大高度:1.1 mm最大供电电压 (Vsup):14.5 V
最小供电电压 (Vsup):11.5 V标称供电电压 (Vsup):13 V
表面贴装:YES技术:CMOS
温度等级:INDUSTRIAL端子面层:Tin/Lead (Sn/Pb)
端子形式:GULL WING端子节距:0.5 mm
端子位置:DUAL处于峰值回流温度下的最长时间:20
宽度:3 mmBase Number Matches:1

LTC4252A-2IMS#TR 数据手册

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LTC4252-1/LTC4252-2  
LTC4252A-1/LTC4252A-2  
Negative Voltage  
Hot Swap Controllers  
U
FEATURES  
DESCRIPTIO  
Allows Safe Board Insertion and Removal from a  
The LTC®4252 negative voltage Hot SwapTM controller  
allows a board to be safely inserted and removed from a  
livebackplane.Outputcurrentiscontrolledbythreestages  
of current limiting: a timed circuit breaker, active current  
limiting and a fast feedforward path that limits peak  
current under worst-case catastrophic fault conditions.  
Live 48V Backplane  
Floating Topology Permits Very High Voltage  
Operation  
Programmable Analog Current Limit With Circuit  
Breaker Timer  
Fast Response Time Limits Peak Fault Current  
Adjustable undervoltage and overvoltage detectors dis-  
connect the load whenever the input supply exceeds the  
desired operating range. The LTC4252’s 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. The  
circuit breaker’s response time is accelerated by sensing  
excessive MOSFET drain voltage, keeping the MOSFET  
within its safe operating area (SOA). An adjustable soft-  
start circuit controls MOSFET inrush current at start-up.  
Programmable Soft-Start Current Limit  
Programmable Timer with Drain Voltage  
Accelerated Response  
±1% Undervoltage/Overvoltage Threshold Accuracy  
(LTC4252A)  
Adjustable Undervoltage/Overvoltage Protection  
LTC4252-1/LTC4252A-1: Latch Off After Fault  
LTC4252-2: Automatic Retry After Fault  
Available in 8-Pin and 10-Pin MSOP Packages  
U
TheLTC4252-1/LTC4252A-1latchoffafteracircuitbreaker  
fault times out. The LTC4252-2 provides automatic retry  
after a fault. The LTC4252A-1/LTC4252A-2 feature tight  
±1% undervoltage/overvoltage threshold accuracy. The  
LTC4252 is available in either an 8-pin or 10-pin MSOP.  
APPLICATIO S  
Hot Board Insertion  
Electronic Circuit Breaker  
48V Distributed Power Systems  
Negative Power Supply Control  
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.  
Hot Swap is a trademark of Linear Technology Corporation.  
Central Office Switching  
High Availability Servers  
ATCA  
U
TYPICAL APPLICATIO  
Start-Up Behavior  
48V/2.5A Hot Swap Controller  
GND  
R
IN  
+
3× 1.8k IN SERIES  
C
L
GATE  
1/4W EACH  
100µF  
LOAD  
EN  
5V/DIV  
C
IN  
1µF  
R3  
GND  
5.1k  
(SHORT PIN)  
V
R1  
402k  
1%  
IN  
LTC4252-1  
PWRGD  
SENSE  
2.5A/DIV  
V
OUT  
*
OV  
R
D
1M  
UV  
DRAIN  
GATE  
R2  
32.4k  
1%  
Q1  
IRF530S  
V
OUT  
TIMER  
SS  
20V/DIV  
C
T
SENSE  
V
EE  
0.33µF  
R
R
S
0.02  
C
C1  
10nF  
C
10Ω  
C
SS  
68nF  
C
18nF  
PWRGD  
10V/DIV  
4252-1/2 TA01  
–48V  
1ms/DIV  
4252-1/2 TA01a  
* M0C207  
425212fb  
1

LTC4252A-2IMS#TR 替代型号

型号 品牌 替代类型 描述 数据表
LTC4252CIMS-2#PBF Linear

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LTC4252/LTC4252A - Negative Voltage Hot Swap Controllers; Package: MSOP; Pins: 10; Tempera

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