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Linear Technology Electronic Components Datasheet

LTC4364CMS-1 Datasheet

Surge Stopper

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LTC4364-1/LTC4364-2
Surge Stopper
with Ideal Diode
FEATURES
n Wide Operating Voltage Range: 4V to 80V
n Withstands Surges Over 80V with VCC 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
APPLICATIONS
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.
DESCRIPTION
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.
TYPICAL APPLICATION
4A, 12V Overvoltage Output Regulator with Ideal Diode
Withstands 200V 1ms Transient at VIN
VIN
12V
383k
CMZ5945B
68V
FDB33N25
FDB3682 10mΩ
2.2k 6.8nF 10Ω
VOUT
+
CLAMPED
AT 27V
22µF
UV
6V
90.9k
OV
60V
10k
VCC
SHDN
UV
OV
HGATE SOURCE DGATE SENSE
OUT
FB
LTC4364
102k
4.99k
GND
TMR
0.22µF
ENOUT
ENABLE
FLT
FAULT
436412 TA01a
Overvoltage Protector Regulates
Output at 27V During Input Transient
92V INPUT SURGE
VIN
20V/DIV
12V
27V CLAMP (ADJUSTABLE)
VOUT
20V/DIV
12V
50ms/DIV
CTMR = 6.8µF
ILOAD = 0.5A
4364 TA01b
Ideal Diode Holds Up Output
During Input Short
12V
VIN
10V/DIV
INPUT SHORTED
TO GND
CLOAD = 6300µF
ILOAD = 0.5A
VOUT 12V OUTPUT HELD UP
10V/DIV
1ms/DIV
4364 TA01c
436412f
1


Linear Technology Electronic Components Datasheet

LTC4364CMS-1 Datasheet

Surge Stopper

No Preview Available !

LTC4364-1/LTC4364-2
ABSOLUTE MAXIMUM RATINGS (Notes 1, 2)
Supply Voltage: VCC .................................. –40V to 100V
SOURCE, OV, UV, SHDN Voltages.............. –40V to 100V
DGATE, HGATE Voltages
(Note 3)...................... SOURCE – 0.3V to SOURCE + 10V
ENOUT, FLT Voltages................................. –0.3V to 100V
OUT, SENSE Voltages.................................–20V to 100V
Voltage Difference (SENSE to OUT)............. –30V to 30V
Voltage Difference (OUT to VCC)...............–100V to 100V
Voltage Difference (SENSE to SOURCE)...–100V to 100V
FB, TMR Voltages...................................... –0.3V to 5.5V
Operating Ambient Temperature Range
LTC4364C................................................. 0°C to 70°C
LTC4364I..............................................–40°C to 85°C
LTC4364H........................................... –40°C to 125°C
Storage Temperature Range................... –65°C to 150°C
Lead Temperature (Soldering, 10 sec)
MS, SO Packages.............................................. 300°C
PIN CONFIGURATION
TOP VIEW
OUT 1
SENSE 2
DGATE 3
SOURCE 4
HGATE 5
VCC 6
SHDN 7
14 FB
13 TMR
12 ENOUT
15
11 FLT
10 GND
9 OV
8 UV
DE PACKAGE
14-LEAD (4mm × 3mm) PLASTIC DFN
TJMAX = 150°C, θJA = 45°C/W
EXPOSED PAD (PIN 15) PCB GND CONNECTION OPTIONAL
TOP VIEW
OUT 1
SENSE 2
NC 3
DGATE 4
SOURCE 5
HGATE 6
NC 7
VCC 8
16 FB
15 TMR
14 ENOUT
13 FLT
12 GND
11 OV
10 UV
9 SHDN
MS PACKAGE
16-LEAD PLASTIC MSOP
TJMAX = 150°C, θJA = 120°C/W
TOP VIEW
OUT 1
SENSE 2
NC 3
DGATE 4
SOURCE 5
HGATE 6
NC 7
VCC 8
16 FB
15 TMR
14 ENOUT
13 FLT
12 GND
11 OV
10 UV
9 SHDN
S PACKAGE
16-LEAD PLASTIC SO
TJMAX = 150°C, θJA = 100°C/W
ORDER INFORMATION
LEAD FREE FINISH
LTC4364CDE-1#PBF
LTC4364IDE-1#PBF
LTC4364HDE-1#PBF
LTC4364CDE-2#PBF
LTC4364IDE-2#PBF
LTC4364HDE-2#PBF
LTC4364CMS-1#PBF
LTC4364IMS-1#PBF
LTC4364HMS-1#PBF
LTC4364CMS-2#PBF
LTC4364IMS-2#PBF
LTC4364HMS-2#PBF
TAPE AND REEL
LTC4364CDE-1#TRPBF
LTC4364IDE-1#TRPBF
LTC4364HDE-1#TRPBF
LTC4364CDE-2#TRPBF
LTC4364IDE-2#TRPBF
LTC4364HDE-2#TRPBF
LTC4364CMS-1#TRPBF
LTC4364IMS-1#TRPBF
LTC4364HMS-1#TRPBF
LTC4364CMS-2#TRPBF
LTC4364IMS-2#TRPBF
LTC4364HMS-2#TRPBF
PART MARKING*
43641
43641
43641
43642
43642
43642
43641
43641
43641
43642
43642
43642
PACKAGE DESCRIPTION
14-Lead (4mm × 3mm) Plastic DFN
14-Lead (4mm × 3mm) Plastic DFN
14-Lead (4mm × 3mm) Plastic DFN
14-Lead (4mm × 3mm) Plastic DFN
14-Lead (4mm × 3mm) Plastic DFN
14-Lead (4mm × 3mm) Plastic DFN
16-Lead Plastic MSOP
16-Lead Plastic MSOP
16-Lead Plastic MSOP
16-Lead Plastic MSOP
16-Lead Plastic MSOP
16-Lead Plastic MSOP
TEMPERATURE RANGE
0°C to 70°C
–40°C to 85°C
–40°C to 125°C
0°C to 70°C
–40°C to 85°C
–40°C to 125°C
0°C to 70°C
–40°C to 85°C
–40°C to 125°C
0°C to 70°C
–40°C to 85°C
–40°C to 125°C
436412f
2


Part Number LTC4364CMS-1
Description Surge Stopper
Maker Linear
PDF Download

LTC4364CMS-1 Datasheet PDF






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