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LT4356CS-3#PBF

产品描述Surge Suppressors Overvoltage Protection Regulator with Latchoff
产品类别模拟混合信号IC    信号电路   
文件大小298KB,共24页
制造商ADI(亚德诺半导体)
官网地址https://www.analog.com
标准
下载文档 详细参数 全文预览

LT4356CS-3#PBF概述

Surge Suppressors Overvoltage Protection Regulator with Latchoff

LT4356CS-3#PBF规格参数

参数名称属性值
Brand NameAnalog Devices Inc
是否无铅含铅
是否Rohs认证符合
包装说明SOP,
针数16
制造商包装代码05-08-1610 (S16)
Reach Compliance Codecompliant
模拟集成电路 - 其他类型ANALOG CIRCUIT
JESD-30 代码R-PDSO-G16
JESD-609代码e3
长度9.906 mm
湿度敏感等级1
功能数量1
端子数量16
最高工作温度70 °C
最低工作温度
封装主体材料PLASTIC/EPOXY
封装代码SOP
封装形状RECTANGULAR
封装形式SMALL OUTLINE
峰值回流温度(摄氏度)260
认证状态Not Qualified
座面最大高度1.752 mm
最大供电电压 (Vsup)80 V
最小供电电压 (Vsup)4 V
标称供电电压 (Vsup)12 V
表面贴装YES
温度等级COMMERCIAL
端子面层Matte Tin (Sn)
端子形式GULL WING
端子节距1.27 mm
端子位置DUAL
处于峰值回流温度下的最长时间30
宽度3.899 mm
Base Number Matches1

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LT4356-3
Surge Stopper with
Fault Latchoff
FeAtures
n
n
n
n
n
n
n
n
n
n
n
Description
The
LT
®
4356-3
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 continue functioning. The LT4356-3 also monitors
the voltage drop between the V
CC
and SNS pins to protect
against overcurrent faults. An internal amplifier limits
the current sense voltage to 50mV. In either fault condi-
tion, a timer is started inversely proportional to MOSFET
stress. If the timer expires, the
FLT
pin pulls low to warn
of an impending power down. If the condition persists,
the MOSFET is turned off, until the
SHDN
pin pulls low
momentarily.
The auxiliary amplifier 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. The
SHDN
input turns off the part, including
the auxiliary amplifier, and reduces the quiescent current
to less than 7µA.
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
Adjustable Latchoff Fault Timer
Controls N-channel MOSFET
Shutdown Pin Withstands –60V to 100V
Fault Output Indication
Auxiliary Amplifier for Level Detection Comparator or
Linear Regulator Controller
Available in (4mm × 3mm) 12-Pin DFN,
10-Pin MSOP or 16-Pin SO Packages
ApplicAtions
n
n
n
n
Automotive/Avionic Surge Protection
Hot Swap/Live Insertion
High Side Switch for Battery Powered Systems
Intrinsic Safety Applications
L,
LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
No R
SENSE
and ThinSOT are trademarks of Analog Devices, Inc. All other trademarks are the
property of their respective owners.
typicAl ApplicAtion
4A, 12V Overvoltage Output Regulator
V
IN
12V
10m
IRLR2908
V
OUT
Overvoltage Protector Regulates Output at
27V During Transient
80V INPUT SURGE
C
TMR
= 6.8µF
I
LOAD
= 500mA
10
383k
V
CC
SHDN
IN
+
100k
UNDERVOLTAGE
A
OUT
LT4356DE-3
EN
GND
TMR
FLT
43563 TA01
102k
OUT
FB
4.99k
V
CC
DC-DC
CONVERTER
SHDN
GND
FAULT
SNS
GATE
V
IN
20V/DIV
12V
V
OUT
20V/DIV
27V ADJUSTABLE CLAMP
12V
100ms/DIV
LT4356-3TA01b
0.1µF
43563fc
For more information
www.linear.com/LT4356-3
1

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