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參數(shù)資料
| 型號： | LTC4211CMS |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 電源管理 |
| 英文描述： | Hot Swap Controller with Multifunction Current Control |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10 |
| 封裝： | PLASTIC, MSOP-10 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大小： | 230K |
| 代理商： | LTC4211CMS |
1
LT4250L/LT4250H
Negative 48V
Hot Swap Controller
4250lhf
V
EE
AND
DRAIN
20V/DIV
I
(Q1)
5A/DIV
500
μ
s/DIV
FEATURES
DESCRIPTIOU
The LT
4250L/LT4250H are 8-pin, negative 48V Hot Swap
TM
controllers that allow a board to be safely inserted and
removed from a live backplane. Inrush current is limited to
a programmable value by controlling the gate voltage of an
external N-channel pass transistor. The pass transistor is
turned off if the input voltage is less than the program-
mable undervoltage threshold or greater than the over-
voltage threshold. A programmable current limit protects
the system against shorts. After a 500
μ
s timeout the
current limit activates the electronic circuit breaker. The
PWRGD (LT4250L) or PWRGD (LT4250H) signal can be
used to directly enable a power module. The LT4250L is
designed for modules with a low enable input and the
LT4250H for modules with a high enable input.
The LT4250L/LT4250H are available in 8-pin PDIP and SO
packages.
APPLICATIU
TYPICAL APPLICATIOU
I
Allows Safe Board Insertion and Removal
from a Live –48V Backplane
I
Circuit Breaker Immunity to Voltage Steps and
Current Spikes
I
Programmable Inrush and
Short-Circuit Current Limits
I
Pin Compatible with LT1640L/LT1640H
I
Operates from –20V to –80V
I
Programmable Overvoltage Protection
I
Programmable Undervoltage Lockout
I
Power Good Control Output
I
Bell-Core Compatible ON/OFF Threshold
I
Central Office Switching
I
–48V Distributed Power Systems
I
Negative Power Supply Control
Hot Swap is a trademark of Linear Technology Corporation.
, LTC and LT are registered trademarks of Linear Technology Corporation.
Voltage Step On Input Supply
V
EE
V
DD
LT4250L
SENSE
C1
470nF
25V
C2
15nF
100V
C3
0.1
μ
F
100V
C4
100
μ
F
100V
Q1
IRF530
R2
10
5%
R3
1k, 5%
R4
549k
1%
R6
10k
1%
R1
0.02
5%
4
OV
–48V RTN
–48V RTN
(SHORT PIN)
3
2
OV =
71V
*
* DIODES INC. SMAT70A
THESE COMPONENTS ARE APPLICATION
SPECIFIC AND MUST BE SELECTED BASED
UPON OPERATING CONDITIONS AND DESIRED
PERFORMANCE. SEE APPLICATIONS
INFORMATION.
UV =
38.5V
UV
RELEASE
AT 43V
UV
5
6
8
7
1
GATE
DRAIN
PWRGD
4250 TA01
V
OUT+
SENSE
+
TRIM
SENSE
–
V
OUT–
V
IN–
ON/OFF
LUCENT
JW050A1-E
V
IN+
2
9
8
5V
7
6
5
1
4
+
C5
100
μ
F
16V
+
–48V
INPUT 1
–48V
INPUT 2
R5
6.49k
1%
0.1
μ
F
10V
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC4211CMS#PBF | 功能描述:IC CONTROLLER HOT SWAP 10-MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:119 系列:- 類型:熱交換控制器 應(yīng)用:通用型，PCI Express? 內(nèi)部開關(guān):無 電流限制:- 電源電壓:3.3V，12V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:80-TQFP 供應(yīng)商設(shè)備封裝:80-TQFP（12x12） 包裝:托盤 產(chǎn)品目錄頁面:1423 (CN2011-ZH PDF) |
| LTC4211-CMS#PBF | 制造商:LINEAR 功能描述: 制造商:Linear Technology 功能描述: |
| LTC4211CMS#TR | 功能描述:IC CONTROLLER HOT SWAP 10-MSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 類型:熱交換控制器 應(yīng)用:-48V 遠(yuǎn)程電力系統(tǒng)，AdvancedTCA ? 系統(tǒng)，高可用性 內(nèi)部開關(guān):無 電流限制:可調(diào) 電源電壓:11.5 V ~ 14.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:10-MSOP 包裝:管件 |
| LTC4211CMS#TRPBF | 功能描述:IC CONTROLLER HOT SWAP 10-MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 類型:熱交換控制器 應(yīng)用:-48V 遠(yuǎn)程電力系統(tǒng)，AdvancedTCA ? 系統(tǒng)，高可用性 內(nèi)部開關(guān):無 電流限制:可調(diào) 電源電壓:11.5 V ~ 14.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:10-MSOP 包裝:管件 |
| LTC4211CMS8 | 功能描述:IC CONTROLLER HOT SWAP 8-MSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 類型:熱交換控制器 應(yīng)用:-48V 遠(yuǎn)程電力系統(tǒng)，AdvancedTCA ? 系統(tǒng)，高可用性 內(nèi)部開關(guān):無 電流限制:可調(diào) 電源電壓:11.5 V ~ 14.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:10-MSOP 包裝:管件 |
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