參數(shù)資料
型號(hào): LT4250LCN8
廠商: Linear Technology
文件頁(yè)數(shù): 14/14頁(yè)
文件大?。?/td> 236K
描述: IC CONTRLR HOT SWAP NEG 48V 8DIP
標(biāo)準(zhǔn)包裝: 50
類型: 熱交換控制器
應(yīng)用: 通用
內(nèi)部開(kāi)關(guān): 無(wú)
電源電壓: -20 V ~ -80 V
工作溫度: 0°C ~ 70°C
安裝類型: 通孔
封裝/外殼: 8-DIP(0.300",7.62mm)
供應(yīng)商設(shè)備封裝: 8-PDIP
包裝: 管件
產(chǎn)品目錄頁(yè)面: 1341 (CN2011-ZH PDF)
LT4250L/LT4250H
14
4250lhfa
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
?/DIV>
 FAX: (408) 434-0507
 ?
 www.linear.com
?LINEAR TECHNOLOGY CORPORATION 2001
LT 0309 REV A " PRINTED IN USA
 RELATED PARTS
 TYPICAL APPLICATION
PART NUMBER
DESCRIPTION
COMMENTS
LTC
?/DIV>
1421
Dual Hot Swap Controller with Additional 12V Control   Operates from 3V to 12V
LTC1422
Hot Swap Controller in SO-8
System Reset Output With Programmable Delay
LT1640AH/LT1640AL  48V Hot Swap Controller in SO-8
LT4250 is a Pin-Compatible Upgrade to LT1640
LT1641-1/LT1641-2    48V Hot Swap Controller in SO-8
Foldback Current Limit, 9V to 80V , Auto-Retry/Latch-Off
LTC1642
Fault Protected Hot Swap Controller
Operates Up to 16.5V , Protected to 33V
LTC1643
PCI Hot Swap Controller
3.3V , 5V , 12V , 12V Supplies for PCI Bus
LTC1645
Dual Hot Swap Controller
Operates from 1.2V to 12V , Power Sequencing
LTC1646
Dual CompactPCI Hot Swap Controller
3.3V , 5V Supplies With Precharge and Local PCI Reset Logic
LTC1647
Dual Hot Swap Controller
Dual ON Pins for Supplies from 3V to 15V
LTC4211
Hot Swap Controller With Multifunction Current
Control
2.5V to 16.5V Supplies, Active Inrush Current Limiting
LTC4251
48 Hot Swap Controller in SOT-23
Active Current Limiting, Fast Comparator for Catastrophic Faults
LTC4252
48 Hot Swap Controller in MSOP
Active Current Limiting, Fast Comparator for Catastrophic Faults, Separate
UV/0V Pins, Power-Good Output
Figure 15. Typical Application Using a Filter Module
+
V
EE
V
DD
LT4250L
PWRGD
SENSE
C1
470nF
25V
C2
15nF
100V
C3
0.1糉
100V
C4
0.1糉
100V
C6
0.1糉
100V
C5
100糉
100V
C7
100糉
16V
Q1
IRF530
R2
10?/DIV>
5%
R3
1k
5%
R4
549k
1%
R5
6.49k
1%
R6
10k
1%
R1
0.02?/DIV>
5%
4
OV
48V RTN
3
2
48V
UV
5
6
8
7
1
GATE
DRAIN
LUCENT
JW050A1-E
V
OUT
+
SENSE
+
TRIM
SENSE

V
OUT

V
IN
+
9
5V
4250 F15
8
7
6
5
3
1
2
4
ON/OFF
CASE
V
IN

V
OUT
+
V
OUT

V
IN
+
CASE
V
IN

+
LUCENT
FLTR100V10
48V RTN
(SHORT PIN)
*
* DIODES INC. SMAT70A
4
3
2
1
MOC207
R7
51k
5%
1N4003
Using an EMI Filter Module
Many applications place an EMI filter module in the
powerpath to prevent switching noise of the module
from being injected back onto the power supply. A typical
application using the Lucent FLTR100V10 filter module is
shown in Figure 15. When using a filter, an optoisolator
is required to prevent common mode transients from
destroying the PWRGD and ON/OFF pins.
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