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TPS2398 PDF预览

TPS2398

更新时间: 2024-11-10 22:52:59
品牌 Logo 应用领域
德州仪器 - TI 控制器
页数 文件大小 规格书
20页 386K
描述
-48V HOT SWAP CONTROLLER FOR REDUNDANT SUPPLY SYSTEMS

TPS2398 数据手册

 浏览型号TPS2398的Datasheet PDF文件第2页浏览型号TPS2398的Datasheet PDF文件第3页浏览型号TPS2398的Datasheet PDF文件第4页浏览型号TPS2398的Datasheet PDF文件第5页浏览型号TPS2398的Datasheet PDF文件第6页浏览型号TPS2398的Datasheet PDF文件第7页 
ꢀꢁ ꢂ ꢃꢄ ꢅꢆ  
ꢀꢁ ꢂ ꢃꢄ ꢅꢅ  
SLUS562A − JUNE 2003 − REVISED SEPTEMBER 2003  
FEATURES  
DESCRIPTION  
D
D
D
D
D
D
D
D
D
Wide Input Supply Range: −36 V to −80 V  
Transient Rating to −100 V  
The TPS2398 and TPS2399 integrated circuits  
are hot swap power managers optimized for use  
in nominal −48-V systems. For redundant-supply  
systems, they incorporate an improved circuit  
breaker response that provides rapid protection  
from short circuits, while still enabling plug-ins to  
tolerate large transients that can be generated by  
the sudden switchover to a higher voltage supply.  
They are designed for supply voltage ranges up to  
−80 V, and are rated to withstand spikes to −100 V.  
In conjunction with an external N-channel FET  
and sense resistor, they can be used to enable live  
insertion of plug-in cards and modules in powered  
systems. Both devices provide load current slew  
rate and peak magnitude limiting, easily  
programmed by sense resistor value and a single-  
external capacitor.  
Improved Transient Response  
Enable Input (EN)  
Programmable Current Limit  
Programmable Current Slew Rate  
Fault Timer to Eliminate Nuisance Trips  
Open-Drain Power Good Output (PG)  
8-Pin MSOP Package  
APPLICATIONS  
D
D
D
−48-V Distributed Power Systems  
Redundant Negative Voltage Supplies  
Central Office Switching  
APPLICATION DIAGRAM  
V
DD  
−48V_RTN  
VIN+  
EN  
VOUT+  
VOUT+  
R3  
30 kΩ  
0.5 W  
10 µA  
+
+
C
OUT  
R2  
C3  
100 kΩ  
100 µF  
100 V  
VIN−  
VOUT−  
VOUT−  
TPS2398/TPS2399  
DC/DC CONVERTER  
1
RTN  
8
PG  
EN  
Q1  
IRF530  
2
3
4
GATE 7  
FLTTIME ISENS 6  
IRAMP  
C1  
D2  
0.047 µF  
R1  
0.02 Ω  
1%  
−48V_INB  
5
−VIN  
C2  
3900 pF  
D1  
UDG−03069  
−48V_INA  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments  
semiconductor products and disclaimers thereto appears at the end of this data sheet.  
ꢀꢥ  
Copyright 2002, Texas Instruments Incorporated  
ꢡ ꢥ ꢢ ꢡꢚ ꢛꢯ ꢝꢜ ꢠ ꢨꢨ ꢦꢠ ꢞ ꢠ ꢟ ꢥ ꢡ ꢥ ꢞ ꢢ ꢪ  
1
www.ti.com  

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