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LTC1643L_15 PDF预览

LTC1643L_15

更新时间： 2024-11-07 01:13:23
品牌 Logo 应用领域
凌特 - Linear PC
页数 文件大小 规格书
16页 288K
描述
PCI-Bus Hot Swap Controller

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中文翻译

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LTC1643L_15 数据手册

 浏览型号LTC1643L_15的Datasheet PDF文件第2页浏览型号LTC1643L_15的Datasheet PDF文件第3页浏览型号LTC1643L_15的Datasheet PDF文件第4页浏览型号LTC1643L_15的Datasheet PDF文件第5页浏览型号LTC1643L_15的Datasheet PDF文件第6页浏览型号LTC1643L_15的Datasheet PDF文件第7页 
LTC1643L/LTC1643L-1/LTC1643H  
PCI-Bus Hot Swap  
Controller  
OBSOLETE:  
Contact Linear Technology for Potential Replacement  
FOR INFORMATION PURPOSES ONLY  
U
FEATURES  
DESCRIPTIO  
The LTC®1643 is a Hot SwapTM controller that allows a board  
to be safely inserted and removed from a live PCI-Bus slot.  
Two external N-channel transistors control the 3.3V and 5V  
supplies while on-chip switches control the –12V and 12V  
supplies. Allsupplyvoltagescanberampedupataprogram-  
mable rate. An electronic circuit breaker protects all four  
suppliesagainstovercurrentfaults.Thefoldbackcurrentlimit  
feature limits current spikes and power dissipation when  
shorts occur and allows boards with large capacitances to be  
poweredupwithouttrippingthecircuitbreaker. ThePWRGD  
output indicates when all of the supply voltages are within  
tolerance and the FAULT output indicates an overcurrent  
condition. The ON(LTC1643H)/ON (LTC1643L/LTC1643L-1)  
pin is used to cycle the board power or reset the circuit  
breaker. The LTC1643L-1 has the ±12V power good com-  
parators disabled.  
I
Allows Safe Board Insertion and Removal from a  
Live PCI Slot  
I
Works on either a Motherboard (LTC1643H) or  
CompactPCITM Card (LTC1643L/LTC1643L-1)  
I
Controls –12V, 3.3V, 5V, 12V Supplies  
I
Programmable Foldback Current Limit with  
Circuit Breaker  
I
User-Programmable Supply Voltage Power-Up Rate  
I
High Side Drive for External N-Channel MOSFETs  
I
–12V and 12V On-Chip Switches  
Fault and Power-Good Outputs  
I
U
APPLICATIO S  
I
PCI-Based Servers  
CompactPCICompliant Boards  
I
, LTC and LT are registered trademarks of Linear Technology Corporation.  
Hot Swap is a trademark of Linear Technology Corporation.  
CompactPCI is a trademark of PCI Industrial Computer Manufacturing Group.  
The LTC1643 is available in a 16-pin narrow SSOP package.  
U
TYPICAL APPLICATION  
Hot Swappable PCI Supply  
R1  
0.007Ω  
Q1  
IRF7413  
5V  
5A  
R6  
10Ω  
R2  
0.005Ω  
Q2  
IRF7413  
3.3V  
7.6A  
GND  
SYSTEM  
POWER  
SUPPLY  
R5  
10Ω  
R7  
100Ω  
C1  
0.047µF  
9
10  
11  
3
13  
12  
14  
3V  
IN  
3V  
GATE 3V  
5V  
5V  
5V  
OUT  
SENSE  
OUT  
IN  
SENSE  
8
GND  
1
2
12V  
IN  
V
EEIN  
16  
5
6
7
12V  
12V  
OUT  
ON  
500mA  
LTC1643H  
R3  
15  
4
–12V  
100mA  
V
EEOUT  
10k  
PCI  
FAULT  
POWER  
SYSTEM  
CONTROLLER  
TIMER  
R4  
10k  
C2  
0.1µF  
PWRGD  
LOGIC  
RESET  
RESET  
1643 TA01  
1
1234567...16

中文翻译

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