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LTC4368IDD-1#PBF

Description
Protection Circuit Automotive 10-Pin DFN EP Tube
File Size1MB,22 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric View All

LTC4368IDD-1#PBF Overview

Protection Circuit Automotive 10-Pin DFN EP Tube

LTC4368IDD-1#PBF Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
ECCN (US)EAR99
Part StatusActive
HTS8542.39.00.01
Product CategoryProtection Circuit
Input Voltage (V)2.5 to 60
Minimum Operating Supply Voltage (V)2.5
Maximum Operating Supply Voltage (V)60
Maximum Supply Current (mA)0.1
Minimum Operating Temperature (°C)-40
Maximum Operating Temperature (°C)85
Supplier Temperature GradeIndustrial
PackagingTube
Supplier PackageDFN EP
Pin Count10
Standard Package NameDFN
MountingSurface Mount
Package Height0.75(Max)
Package Length3
Package Width3
PCB changed10
Lead ShapeNo Lead
LTC4368
100V UV/OV and Reverse Protection
Controller with Bidirectional Circuit Breaker
FEATURES
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DESCRIPTION
The
LTC
®
4368
protects applications from power supply
voltages that may be too high, too low, or even negative
and from overcurrent faults in both forward and reverse
directions. The LTC4368 controls the gate voltage of a pair
of external N-channel MOSFETs to ensure that the load
is connected to the input supply only when there are no
voltage or current faults.
Two comparator inputs allow configuration of the over-
voltage (OV) and undervoltage (UV) set points using an
external resistive divider. A current sense resistor sets the
forward and reverse circuit breaker current thresholds.
After a forward current fault, the LTC4368 will either latch-
off power, or retry after a user adjustable delay. After a
reverse current fault, the LTC4368 waits for the output to
fall 100mV below the input to reconnect power to the load.
The LTC4368 has a 32ms turn-on delay that debounces
live supply input connections and blocks 50Hz and 60Hz
AC power. UV/OV faults also trigger the 32ms recovery
delay before the external MOSFETs are turned back on.
All registered trademarks and trademarks are the property of their respective owners.
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Wide Operating Voltage Range: 2.5V to 60V
Overvoltage Protection to 100V
Reverse Supply Protection to –40V
Bidirectional Electronic Circuit Breaker:
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+50mV Forward Sense Threshold
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–50mV Reverse (LTC4368-1)
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–3mV Reverse (LTC4368-2)
Adjustable ±1.5% Undervoltage and Overvoltage
Thresholds
Low Operating Current: 80µA
Low Shutdown Current: 5µA
Controls Back-to-Back N-Channel MOSFETs
Blocks 50Hz and 60Hz AC Power
Hot Swappable Supply Input
Pin-Selectable Overcurrent Auto-Retry Timer or Latchoff
10-Pin MSOP and 3mm × 3mm DFN Packages
AEC-Q100 Qualified for Automotive Applications
APPLICATIONS
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Reverse Battery Protection
Portable Instrumentation
Automotive and Industrial Surge Protection
Energy Storage Systems
TYPICAL APPLICATION
24V Application with 10A Circuit Breaker
+50mV
V
IN
24V
–40V TO 100V
INRUSH
CONTROL
22k
3.3nF
V
IN
464k
SHDN
1500k
OV = 36V
UV = 7V
UV
121k
OV
29.4k
GND
RETRY
LTC4368-2
FAULT
1200ms COOLDOWN
AFTER FORWARD
OC FAULT
0.22µF
4368 TA01a
SiR870
SiR870
0.005
–3mV
V
OUT
7V TO 36V
Load Protected from Reverse and Overvoltage at V
IN
I
OUT
–0.6A TO 10A
+70V
20V/DIV
OV = 36V
UV = 7V
V
IN
+
100µF
VALID WINDOW
GATE
SENSE
V
OUT
GND
V
OUT
V
OUT
–40V
20V/DIV
V
IN
200ms/DIV
4368 TA01b
Document Feedback
For more information
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