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LTC4357MPMS8#TRPBF

Description
OR 控制器 N+1 ORing 控制器 N 通道 N:1 8-MSOP
Categorysemiconductor    Multi-channel IC (PMIC)   
File Size650KB,14 Pages
ManufacturerADI
Websitehttps://www.analog.com
Environmental Compliance
Download Datasheet Parametric View All

LTC4357MPMS8#TRPBF Overview

OR 控制器 N+1 ORing 控制器 N 通道 N:1 8-MSOP

LTC4357MPMS8#TRPBF Parametric

Parameter NameAttribute value
category
MakerADI
series-
PackageTape and Reel (TR)
typeN+1 ORing controller
FET typeN channel
Ratio - Input:OutputN:1
internal switchnone
Current - Output (maximum)-
Voltage - Power supply9V ~ 80V
applicationAutomotive grade, redundant power supplies, telecom infrastructure
Operating temperature-55°C ~ 125°C
Installation typesurface mount type
Package/casing8-TSSOP, 8-MSOP (0.118", 3.00mm wide)
Supplier device packaging8-MSOP
Delay time - off300 ns
Current - power supply500 µA
Basic product numberLTC4357
LTC4357
Positive High Voltage
Ideal Diode Controller
Features
n
n
n
n
n
n
Description
The LTC
®
4357 is a positive high voltage ideal diode control-
ler that drives an external N-channel MOSFET to replace a
Schottky diode. When used in diode-OR and high current
diode applications, the LTC4357 reduces power consump-
tion, heat dissipation, voltage loss and PC board area.
The LTC4357 easily ORs power sources to increase total
system reliability. In diode-OR applications, the LTC4357
controls the forward voltage drop across the MOSFET to
ensure smooth current transfer from one path to the other
without oscillation. If the power source fails or is shorted,
a fast turn-off minimizes reverse current transients.
L,
LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
Hot Swap is a trademark of Linear Technology Corporation. All other trademarks are the
property of their respective owners.
Reduces Power Dissipation by Replacing a Power
Schottky Diode with an N-Channel MOSFET
0.5µs Turn-Off Time Limits Peak Fault Current
Wide Operating Voltage Range: 9V to 80V
Smooth Switchover without Oscillation
No Reverse DC Current
Available in 6-Lead (2mm
×
3mm) DFN and
8-Lead MSOP Packages
applications
n
n
n
n
n
N + 1 Redundant Power Supplies
High Availability Systems
AdvancedTCA Systems
Telecom Infrastructure
Automotive Systems
typical application
48V, 10A Diode-OR
V
INA
48V
IN
FDB3632
POWER DISSIPATION (W)
6
5
DIODE (MBR10100)
4
3
2
1
FET (FDB3632)
0
IN
GATE
LTC4357
GND
4357 TA01
Power Dissipation vs Load Current
GATE
LTC4357
GND
OUT
V
DD
V
OUT
TO LOAD
POWER
SAVED
V
INB
48V
FDB3632
0
2
OUT
V
DD
4
6
CURRENT (A)
8
10
4357 TA01b
*SEE FIGURES 2 AND 3 FOR ADDITIONAL OPTIONAL COMPONENTS
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