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LTC4359 Datasheet(PDF) 16 Page - Linear Integrated Systems

Part # LTC4359
Description  18V Dual Input Micropower PowerPath Prioritizer
PDF  20 Pages
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Manufacturer  LINEAR [Linear Integrated Systems]
Direct Link  http://www.linearsystems.com
Logo LINEAR - Linear Integrated Systems

LTC4359 Datasheet(HTML) 16 Page - Linear Integrated Systems

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LTC4419
16
4419f
For more information www.linear.com/LTC4419
Typical applicaTions
Battery Backup with Interface to Low Voltage Logic
SuperCap Backup with SuperCap Charging
R3
365k
5V TO 18V
WALL ADAPTER
3.6V TO 18V
BACKUP
COUT
10µF
R2
88.7k
R6
1M
R7
1M
R9
1M
R1
44.2k
R4
150k
R5
1M
V1
OUT
CMPOUT1
CMPOUT2
V2ON
4419 TA02
ADJ
CMP1
CMP2
GND
LTC4419
V2
C1
10µF
C3
10µF
C2
10µF
IN
OUT
LTC1763-3.3V
SHDN GND
V2ON
V1UV
V2UV
3.3V
SYSTEM
SWITCHOVER THRESHOLD: V1 < 4V (V1 FALLING)
V1UV THRESHOLD: V1 < 4.5V (V1 FALLING)
V2UV THRESHOLD: V2 < 3V (V2 FALLING)
RSN1
0.5
RSN2
0.5
R3
1M
R7
1M
R6
1M
COUT
10µF
SWITCHOVER THRESHOLD: V1 < 4V (V1 FALLING)
V1UV THRESHOLD: V1 < 4.4V (V1 FALLING)
V2UV THRESHOLD: V2 < 3.5V (V2 FALLING)
R2
237k
R1
121k
M1
2N4351
R4B
237k
R13
127k
C2: MURATA DMF3Z5R5H474M3DTA0
R12
12.1k
R8
1M
1.7V TO 5.5V
INPUT
R4A
61.9k
R5
1.87M
V1
V2
OUT
OUT
V1UV
V2UV
CMPOUT1
L1 3.3µH
4.2V
C2
CMPOUT2
ADJ
CMP1
V2ON
4419 TA03
GND
LTC4419
CMP2
940mF
940mF
C1
10µF
C2
120pF
SW2
SW1
LTC3128
GND
VOUT
RSENP
RSENS
MID
IN
PROG
MAXV
FB
RUN



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