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LTC4089 Datasheet(PDF) 8 Page - Analog Devices

Part # LTC4089
Description  2.5A Supercapacitor Backup Power Manager
PDF  26 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

LTC4089 Datasheet(HTML) 8 Page - Analog Devices

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LTC4041
8
Rev A
For more information www.analog.com
TA = 25°C, unless otherwise noted.
TYPICAL PERFORMANCE CHARACTERISTICS
Boost Sleep Mode ISYSQ and
ISCAPQ vs Temperature
Backup Boost Transient
Response to Load Step
Burst Mode to Constant
Frequency Mode Transition
Waveform
OVP Module Shutdown Voltage
(Through 6.2k) vs Temperature
OVSNS Pin Quiescent Current
vs Temperature
Supercapacitor Balancer
Source/Sink Current
Minimum VSCAP to Maintain
Boost Regulation vs ISYS
VSYS = 5V
CAPSEL = 0V
ISCAPQ, VSCAP = 2.5V
ISYSQ, VSCAP = 2.5V
ISCAPQ, VSCAP = 4.5V
ISYSQ, VSCAP = 4.5V
TEMPERATURE (°C)
–45
–10
25
60
95
130
20
30
40
50
60
70
0
2
4
6
8
10
4041 G19
VSCAP = 3.5V
CSYS = 100µF
L = 2.2µH
VSYS
ISYS
TIME (ms)
–0.4
0.0
0.4
0.8
1.2
1.6
4.5
4.6
4.7
4.8
4.9
5.0
5.1
5.2
5.3
0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
4041 G20
VSCAP = 3.5V
CSYS = 100µF
L = 2.2µH
VSYS
ISYS
TIME (ms)
–0.4
0.0
0.4
0.8
1.2
1.6
4.5
4.6
4.7
4.8
4.9
5.0
5.1
5.2
5.3
0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
4041 G21
TEMPERATURE (°C)
–45
–10
25
60
95
130
6.20
6.25
6.30
6.35
6.40
6.45
6.50
4041 G22
VOVSNS = 5V
TEMPERATURE (°C)
–45
–10
25
60
95
130
20
25
30
35
40
45
50
55
60
4041 G23
CAPSEL = 5V
VSCAP = 5V
VSCAP = 2.5V
VBAL/VSCAP (%)
0 10 20 30 40 50 60 70 80 90 100
–140
–120
–100
–80
–60
–40
–20
0
20
40
60
4041 G24
SYSGD FALLING
PROGRAMMED VSYS = 5V
PROGRAMMED VSYS = 3.3V
ISYS (A)
1m
10m
100m
1
3
0
0.5
1.0
1.5
2.0
2.5
3.0
4041 G25



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