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LTC4371IDD#TRPBF

Description
OR 控制器 N+1 ORing 控制器 N 通道 2:1 10-DFN(3x3)
Categorysemiconductor    Multi-channel IC (PMIC)   
File Size539KB,22 Pages
ManufacturerADI
Websitehttps://www.analog.com
Environmental Compliance
Download Datasheet Parametric View All

LTC4371IDD#TRPBF Overview

OR 控制器 N+1 ORing 控制器 N 通道 2:1 10-DFN(3x3)

LTC4371IDD#TRPBF Parametric

Parameter NameAttribute value
category
MakerADI
series-
PackageTape and Reel (TR)
typeN+1 ORing controller
FET typeN channel
Ratio - Input:Output2:1
internal switchnone
Current - Output (maximum)-
Voltage - Power supply-4.5V ~ -600V
application-48V Dist Power System, AdvancedTCA® System
Operating temperature-40°C ~ 85°C
Installation typesurface mount type
Package/casing10-WFDFN exposed pad
Supplier device packaging10-DFN(3x3)
Current - power supply300 µA
Basic product numberLTC4371
FeaTures
n
n
n
n
n
n
n
n
n
n
n
LTC4371
Dual Negative Voltage
Ideal Diode-OR Controller
and Monitor
DescripTion
The
LTC
®
4371
is a two-input negative voltage ideal diode-OR
controller that drives external N-channel MOSFETs as a low
dissipation alternative to Schottky diodes in high power –48V
systems. Low power dissipation and voltage loss eliminates
the need for heatsinks and reduces PC board area. Power
sources can be easily ORed together to increase total system
power and reliability.
The LTC4371 tolerates ±300V transients such as those
experienced during lightning-induced surges and input
supply short-circuit events. The internal shunt regulator
and low 350μA quiescent current allow the use of a large
value dropping resistor to protect the supply pin against
high voltage transients, while the high impedance drain
pins can be similarly protected by high value series resis-
tors without compromising diode operation.
The 220ns reverse current turn-off is achieved by a powerful
2A gate driver with low propagation delay, thereby minimizing
peak reverse current under catastrophic fault conditions. Open
MOSFET and fuse faults are indicated at the FAULTB pin, which
is capable of sinking 5mA to drive an LED or opto isolator.
Controls N-Channel MOSFETs to Replace Power
Schottky Diodes
Low 15mV Forward Voltage Minimizes Dissipation
Withstands > ±300V Transients
Fast Turn-Off: <220ns
Shunt Regulated for High Voltage Applications
4.5V Minimum Operation
Low 350μA Quiescent Current
5mA Gate Pull-Up for 60Hz Applications
High Impedance Drain Pins: <10μA Leakage
Open Fuse and MOSFET Monitor
10-Pin (3mm × 3mm) DFN and MSOP Packages
applicaTions
n
n
n
n
–48V Telecom Power
AdvancedTCA Systems
Network Routers and Switches
Computer Systems and Servers
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.
Typical applicaTion
RTN
R
Z
30k
C1
2.2 F
FAULTB
GB
SA
SB V
SS
D1
GREEN LED =
MOSFETS GOOD
V
OUT
50A LOAD
R1
33k
–48V/50A Diode-OR
Power Dissipation vs. Load Current
vs Load Current
40
V
Z
LTC4371
DA
R
DA
20k
V
A
–36V TO
–72V
V
B
–36V TO
–72V
DB
R
DB
20k
M1*
M3*
M2*
GA
V
DD
POWER DISSIPATION (W)
30
SCHOTTKY DIODE
(SBRT60U100CT)
20
POWER
SAVED
10
MOSFET
(2–IPT020N10N3)
4371 TA01a
0
M4*
*M1-M4: IPT020N10N3
0
10
20
30
CURRENT (A)
40
50
4371 TA01b
For more information
www.linear.com/LTC4371
1
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