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器件3D模型￥ 46.367
LTC4364HMS-2#TRPBF 数据手册 - Linear Technology（凌力尔特）
制造商:
Linear Technology（凌力尔特）
封装:
MSOP-16
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标记信息在P3
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LTC4364HMS-2#TRPBF数据手册
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LTC4364-1/LTC4364-2
1
436412f
TYPICAL APPLICATION
FEATURES DESCRIPTION
Surge Stopper
with Ideal Diode
The LTC
®
4364 surge stopper with ideal diode controller
protects loads from high voltage transients. It limits and
regulates the output during an overvoltage event, such
as load dump in automobiles, by controlling the voltage
drop across an external N-channel MOSFET pass device.
The LTC4364 also includes a timed, current limited circuit
breaker. In a fault condition, an adjustable fault timer must
expire before the pass device is turned off. The LTC4364-1
latches off the pass device while the LTC4364-2 automati-
cally restarts after a delay. The LTC4364 precisely monitors
the input supply for overvoltage (OV) and undervoltage
(UV) conditions. The external MOSFET is held off in un-
dervoltage and auto-retry is disabled in overvoltage.
An integrated ideal diode controller drives a second MOS-
FET to replace a Schottky diode for reverse input protec-
tion and output voltage holdup. The LTC4364 controls the
forward voltage drop across the MOSFET and minimizes
reverse current transients upon power source failure,
brownout or input short.
Overvoltage Protector Regulates
Output at 27V During Input Transient
Ideal Diode Holds Up Output
During Input Short
4A, 12V Overvoltage Output Regulator with Ideal Diode
Withstands 200V 1ms Transient at V
IN
APPLICATIONS
n
Wide Operating Voltage Range: 4V to 80V
n
Withstands Surges Over 80V with V
CC
Clamp
n
Adjustable Output Clamp Voltage
n
Ideal Diode Controller Holds Up Output Voltage
During Input Brownouts
n
Reverse Input Protection to –40V
n
Reverse Output Protection to –20V
n
Overcurrent Protection
n
Low 10μA Shutdown Current at 12V
n
Adjustable Fault Timer
n
0.1% Retry Duty Cycle During Faults (LTC4364-2)
n
Available in 4mm × 3mm 14-Lead DFN, 16-Lead MSOP,
and 16-Lead SO Packages
n
Automotive/Avionic Surge Protection
n
Hot Swap/Live Insertion
n
Redundant Supply ORing
n
Output Port Protection
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.
+
OUTSENSEDGATESOURCEHGATE
TMRGND
0.22µF
UV
UV
6V
OV
60V
OV
ENOUT
ENABLE
FAULT
436412 TA01a
F LT
SHDN FB
10Ω
2.2k
383k
V
IN
12V
90.9k
10k
102k
22µF
V
OUT
CLAMPED
AT 27V
4.99k
CMZ5945B
68V
FDB33N25 FDB3682
10mΩ
6.8nF
V
CC
LTC4364
50ms/DIV
C
TMR
= 6.8µF
I
LOAD
= 0.5A
V
IN
20V/DIV
12V
12V
V
OUT
20V/DIV
92V INPUT SURGE
27V CLAMP (ADJUSTABLE)
4364 TA01b
1ms/DIV
C
LOAD
= 6300µF
I
LOAD
= 0.5A
V
IN
10V/DIV
12V
12V
V
OUT
10V/DIV
4364 TA01c
INPUT SHORTED
TO GND
OUTPUT HELD UP
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