收藏本站
LT4356-1/LT4356-2
Surge Stopper
FEATURES
DESCRIPTION
n
n
n
n
n
n
n
n
n
n
n
n
n
Stops High Voltage Surges
Adjustable Output Clamp Voltage
Overcurrent Protection
Wide Operation Range: 4V to 80V
Reverse Input Protection to –60V
Low 7μA Shutdown Current, LT4356-1
Adjustable Fault Timer
Controls N-channel MOSFET
Shutdown Pin Withstands –60V to 100V
Fault Output Indication
Guaranteed Operation to 125°C
Auxiliary Ampli?er for Level Detection Comparator or
Linear Regulator Controller
Available in (4mm × 3mm) 12-Pin DFN,
The LT ? 4356 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 V CC and SNS pins to protect against
overcurrent faults. An internal ampli?er 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.
10-Pin MSOP or 16-Pin SO Packages
APPLICATIONS
The auxiliary ampli?er may be used as a voltage detection
comparator or as a linear regulator controller driving an
external PNP pass transistor.
n
n
n
n
Automotive/Avionic Surge Protection
Hot Swap/Live Insertion
High Side Switch for Battery Powered Systems
Intrinsic Safety Applications
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
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.
LT4356-2 differs from the LT4356-1 during shutdown by
reducing the quiescent current to 60μA and keeping alive
the auxiliary ampli?er for uses such as an undervoltage
lockout or always-on regulator.
TYPICAL APPLICATION
4A, 12V Overvoltage Output Regulator
Overvoltage Protector Regulates Output at
V IN
12V
10mΩ
IRLR2908
V OUT
27V During Transient
C TMR = 6.8μF
80V INPUT SURGE
I LOAD = 500mA
10Ω
102k
383k
V CC
SNS
GATE
OUT
V IN
20V/DIV
FB
SHDN
4.99k
V CC
12V
100k
IN +
LT4356DE
EN
DC-DC
CONVERTER
SHDN GND
V OUT
20V/DIV
12V
27V ADJUSTABLE CLAMP
UNDERVOLTAGE
A OUT
GND
TMR
FLT
4356 TA01
FAULT
100ms/DIV
4356 TA01b
0.1μF
4356fa
1
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
LT800SM GAS TRIGGER TUBE 800V SMD
LTC4366HTS8-1#TRMPBF IC SURGE STOPPER HV TSOT-23-8
LTP070F POLYSWITCH STRAP 0.70A HOLD
LTP100SSF POLYSWITCH PTC RESET 1A SPLIT LD
LTP180F POLYSWITCH STRAP 1.8A HOLD
LTP180LF POLYSWITCH PTC RESET 1.8A SPLIT
LTP190F POLYSWITCH STRAP 1.9A HOLD
LTP260F POLYSWITCH STRAP 2.6A HOLD
相关代理商/技术参数
LT4356IMS-1PBF 制造商:Linear Technology 功能描述:Hot Swap Controller 1-Channel 80V MSOP10 制造商:Linear Technology 功能描述:Surge Protection Adj Regulator 4-80V 7uA
LT4356IMS-1-PBF 制造商:LINER 制造商全称:Linear Technology 功能描述:Overvoltage Protection Regulator and Inrush Limiter
LT4356IMS-1-TR 制造商:LINER 制造商全称:Linear Technology 功能描述:Overvoltage Protection Regulator and Inrush Limiter
LT4356IMS-1-TRPBF 制造商:LINER 制造商全称:Linear Technology 功能描述:Overvoltage Protection Regulator and Inrush Limiter
LT4356IMS-3 制造商:LINER 制造商全称:Linear Technology 功能描述:Surge Stopper with Fault Latchoff
LT4356IMS-3#PBF 功能描述:IC SURGE STOPPER W/LATCH 10MSOP RoHS:是 类别:过电压，电流，温度装置 >> 电涌抑制 IC 系列:- 产品培训模块:LT4356 Surge Stopper 产品目录绘图:LT4356 Output Graph LT4356 Series 10-MSOP 标准包装:2,500 系列:- 电压 - 工作:4 ~ 80V 电压 - 箝位:27V，可调 技术:混合技术 功率（瓦特）:- 电路数:1 应用:自动 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-MSOP 包装:带卷 (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
LT4356IMS-3#PBF 制造商:Linear Technology 功能描述:Hot Swap Controller IC
LT4356IMS-3#TRPBF 功能描述:IC SURGE STOPPER ADJ 10-MSOP RoHS:是 类别:过电压，电流，温度装置 >> 电涌抑制 IC 系列:- 产品培训模块:LT4356 Surge Stopper 产品目录绘图:LT4356 Output Graph LT4356 Series 10-MSOP 标准包装:2,500 系列:- 电压 - 工作:4 ~ 80V 电压 - 箝位:27V，可调 技术:混合技术 功率（瓦特）:- 电路数:1 应用:自动 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-MSOP 包装:带卷 (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