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參數(shù)資料
| 型號： | LT4356HDE-1#TR |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO12 |
| 封裝： | 4 X 3 MM, PLASTIC, MO-229WGED, DFN-12 |
| 文件頁數(shù)： | 1/26頁 |
| 文件大?。?/td> | 231K |
| 代理商： | LT4356HDE-1#TR |
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LT4356-1/LT4356-2
1
4356fa
APPLICATIONS
FEATURES
DESCRIPTION
Surge Stopper
The LT4356 surge stopper protects loads from high voltage
transients. It regulates the output during an overvoltage
event, such as load dump in automobiles, by controlling
the gate of an external N-channel MOSFET. The output is
limited to a safe value thereby allowing the loads to con-
tinue functioning. The LT4356 also monitors the voltage
drop between the VCC and SNS pins to protect against
overcurrent faults. An internal amplier limits the current
sense voltage to 50mV. In either fault condition, a timer
is started inversely proportional to MOSFET stress. If the
timer expires, the FLT pin pulls low to warn of an impend-
ing power down. If the condition persists, the MOSFET is
turned off. After a cool down period, the GATE pin pulls
up turning on the MOSFET again.
The auxiliary amplier may be used as a voltage detection
comparator or as a linear regulator controller driving an
external PNP pass transistor.
Back-to-back FETs can be used in lieu of a Schottky diode
for reverse input protection, reducing voltage drop and
power loss. A shutdown pin reduces the quiescent current
to less than 7μA for the LT4356-1 during shutdown. The
LT4356-2 differs from the LT4356-1 during shutdown by
reducing the quiescent current to 60μA and keeping alive
the auxiliary amplier for uses such as an undervoltage
lockout or always-on regulator.
n Automotive/Avionic Surge Protection
n Hot Swap/Live Insertion
n High Side Switch for Battery Powered Systems
n Intrinsic Safety Applications
n Stops High Voltage Surges
n Adjustable Output Clamp Voltage
n Overcurrent Protection
n Wide Operation Range: 4V to 80V
n Reverse Input Protection to –60V
n Low 7μA Shutdown Current, LT4356-1
n Adjustable Fault Timer
n Controls N-channel MOSFET
n Shutdown Pin Withstands –60V to 100V
n Fault Output Indication
n Guaranteed Operation to 125°C
n Auxiliary Amplier for Level Detection Comparator or
Linear Regulator Controller
n Available in (4mm
× 3mm) 12-Pin DFN,
10-Pin MSOP or 16-Pin SO Packages
4A, 12V Overvoltage Output Regulator
Overvoltage Protector Regulates Output at
27V During Transient
0.1μF
10Ω
10mΩ
IRLR2908
VIN
12V
4356 TA01
LT4356DE
GND
TMR
OUT
GATE
SNS
IN+
SHDN
AOUT
FAULT
VOUT
EN
FLT
UNDERVOLTAGE
FB
VCC
DC-DC
CONVERTER
GND
SHDN
VCC
4.99k
383k
100k
102k
100ms/DIV
4356 TA01b
VIN
20V/DIV
VOUT
20V/DIV
80V INPUT SURGE
CTMR = 6.8μF
ILOAD = 500mA
27V ADJUSTABLE CLAMP
12V
TYPICAL APPLICATION
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT4356HDE-1-TRPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Overvoltage Protection Regulator and Inrush Limiter |
| LT4356HDE-2 | 制造商:Linear Technology 功能描述:MS-Hot Swap/High Voltage, Overvoltage Protection Regulator with Auto-retry |
| LT4356HDE-2#PBF | 功能描述:IC SURGE STOPPER ADJ 12-DFN RoHS:是 類別:過電壓，電流，溫度裝置 >> 電涌抑制 IC 系列:- 產(chǎn)品培訓(xùn)模塊:LT4356 Surge Stopper 產(chǎn)品目錄繪圖:LT4356 Output Graph LT4356 Series 10-MSOP 標(biāo)準(zhǔn)包裝:2,500 系列:- 電壓 - 工作:4 ~ 80V 電壓 - 箝位:27V，可調(diào) 技術(shù):混合技術(shù) 功率（瓦特）:- 電路數(shù):1 應(yīng)用:自動 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:帶卷 (TR) 配用:DC1018B-C-ND - DEMO BOARD FOR LT4356-3DC1018B-B-ND - DEMO BOARD FOR LT4356-2DC1018B-A-ND - DEMO BOARD FOR LT4356-1 |
| LT4356HDE-2#TRPBF | 功能描述:IC SURGE STOPPER ADJ 12-DFN RoHS:是 類別:過電壓，電流，溫度裝置 >> 電涌抑制 IC 系列:- 產(chǎn)品培訓(xùn)模塊:LT4356 Surge Stopper 產(chǎn)品目錄繪圖:LT4356 Output Graph LT4356 Series 10-MSOP 標(biāo)準(zhǔn)包裝:2,500 系列:- 電壓 - 工作:4 ~ 80V 電壓 - 箝位:27V，可調(diào) 技術(shù):混合技術(shù) 功率（瓦特）:- 電路數(shù):1 應(yīng)用:自動 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:帶卷 (TR) 配用:DC1018B-C-ND - DEMO BOARD FOR LT4356-3DC1018B-B-ND - DEMO BOARD FOR LT4356-2DC1018B-A-ND - DEMO BOARD FOR LT4356-1 |
| LT4356HDE-2PBF | 制造商:Linear Technology 功能描述:Surge Protect Adj Regulator 4-80V 60uA |
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