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參數(shù)資料
| 型號： | LT4256-3 |
| 廠商： | Linear Technology Corporation |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Positive High Voltage Hot Swap Controller with Open-Circuit Detect |
| 中文描述： | 正高電壓熱插拔控制器與開路檢測 |
| 文件頁數(shù)： | 1/20頁 |
| 文件大?。?/td> | 305K |
| 代理商： | LT4256-3 |
LT4256-3
1
42563f
The LT
4256-3 is a high voltage Hot Swap
allows a board to be safely inserted and removed from a
live backplane. An internal driver controls the high side
N-channel MOSFET gate for supply voltages ranging from
10.8V to 80V. The part features an open-circuit detect
(OPEN) output that indicates abnormally low load current
conditions.
The LT4256-3 also features an adjustable analog foldback
current limit. If the supply remains in current limit for more
than a programmable time, the N-channel MOSFET shuts
off, the PWRGD output asserts low and the LT4256-3
either automatically restarts after a time-out delay or
latches off until the UV pin is cycled low (depending on the
status of the RETRY pin).
The PWRGD output indicates when the output voltage
rises above a programmed level. An external resistor
string from V
CC
provides programmable undervoltage and
overvoltage protection.
The LT4256-3 is available in a 16-lead SSOP package.
TM
controller that
I
Hot Board Insertion
I
Electronic Circuit Breaker/Power Bussing
I
Industrial High Side Switch/Circuit Breaker
I
24V/48V Industrial/Alarm Systems
I
Ideally Suited for 12V, 24V and 48V Distributed
Power Systems
I
48V Telecom Systems
, LTC and LT are registered trademarks of Linear Technology Corporation.
Hot Swap is a trademark of Linear Technology Corporation.
I
Allows Safe Board Insertion and Removal from a
Live Backplane
I
Controls Supply Voltage from 10.8V to 80V
I
Foldback Current Limiting
I
Open Circuit and Overcurrent Fault Detect
I
Drives an External N-Channel MOSFET
I
Automatic Retry or Latched Off Operation
After Overcurrent Fault
I
Programmable Supply Voltage Power-Up Rate
I
Open MOSFET Detection
I
1% Over and Undervoltage Detection Accuracy
I
Available in a 16-Lead SSOP Package
APPLICATIU
Positive High Voltage
Hot Swap Controller
with Open-Circuit Detect
4256 TA01
0.020
LT4256-3
SENSE
V
CC
GATE
FB
V
OUT
PWRGD
RETRY
UV
OV
TIMER
GND
V
IN
48V
GND
(SHORT PIN)
IRF540
CMPZ5241BS
11V
4.02k
4.02k
64.9k
100
4.02k
10
36.5k
PWRGD
V
48V
2A
51k
C
L
33nF
0.01
μ
F
10nF
OPEN
SMAT70A
UV = 36V
OV = 73V
PWRGD = 40V
+
48V, 2A Hot Swap Controller
V
IN
50V/DIV
V
50V/DIV
INRUSH
CURRENT
500mA/DIV
PWRGD
50V/DIV
2.5ms/DIV
42563 TA02
CONTACT BOUNCE
FEATURES
DESCRIPTIOU
TYPICAL APPLICATIO
U
LT4256-3 Start-Up Behavior
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LT4256-3CGN | Positive High Voltage Hot Swap Controller with Open-Circuit Detect |
| LT4256-3IGN | Positive High Voltage Hot Swap Controller with Open-Circuit Detect |
| LT4351 | MOSFET Diode-OR Controller |
| LT4351CMS | JACK RJ45 8POS/2PORT RTANG PCB |
| LT4351IMS | MOSFET Diode-OR Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT4256-3CGN | 功能描述:IC CTRLR HOTSWP HV DETECT 16SSOP 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 |
| LT4256-3CGN#PBF | 功能描述:IC CTRLR HOTSWP HV DETECT 16SSOP 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) |
| LT4256-3CGN#TR | 功能描述:IC CTRLR HOTSWP HV DETECT 16SSOP 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 |
| LT4256-3CGN#TRPBF | 功能描述:IC CTRLR HOTSWP HV DETECT 16SSOP 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 |
| LT4256-3IGN | 功能描述:IC CTRLR HOTSWP HV DETECT 16SSOP 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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