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LTC4091 Datasheet(PDF) 5 Page - Linear Technology

Part # LTC4091
Description  36V Battery Charger and Power Backup Manager
PDF  26 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC4091 Datasheet(HTML) 5 Page - Linear Technology

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LTC4091
5
4091fa
For more information www.linear.com/LTC4091
VOUT, IBAT vs VBAT
Internal Ideal Diode Current
vs VFWD
Internal and External Ideal Diode
Current vs VFWD
TYPICAL PERFORMANCE CHARACTERISTICS
Battery Current and Voltage
vs Time
IBAT vs VBAT
Battery Voltage vs Temperature
Charge Current vs Temperature
(Thermal Regulation)
High Voltage Regulator Efficiency
vs Output Load
Oscillator Frequency vs RT
TA = 25°C, unless otherwise noted.
0
50
100
150
200
FORWARD VOLTAGE (mV)
0.0
0.5
1.0
1.5
2.0
4091 G02
A
T = −50°C
A
T = 125°C
A
T = 25°C
0
10
20
30
40
50
FORWARD VOLTAGE (mV)
0.0
0.5
1.0
1.5
2.0
4091 G03
EXTERNAL MOSFET:
SiA433EDJ
0.0
0.5
1.0
1.5
2.0
TIME (Hr)
0.0
0.2
0.4
0.6
0.8
1.0
4091 G04
PROG
R
= 66.67k
BAT
I
BAT
V
CHRG
TIMER
TERMINATION
TIMER
TERMINATION
TIMER
TERMINATION
TIMER
TERMINATION
3.0
3.4
3.8
4.2
4.6
5.0
2.1 2.4 2.7 3.0 3.3 3.6 3.9 4.2 4.5
BATTERY VOLTAGE (V)
0.0
0.2
0.4
0.6
0.8
1.0
1.2
4091 G05
RPROG = 50k
−50
−25
0
25
50
75
100
TEMPERATURE (°C)
4.0
4.1
4.2
4.3
4.4
4091 G06
V = 12V
IN
I
= 0mA
BAT
50
75
100
125
TEMPERATURE (°C)
0.0
0.2
0.4
0.6
0.8
1.0
1.2
4091 G07
R
= 50k
PROG
R
= 100k
PROG
V = 12V
IN
0.0
0.5
1.0
1.5
2.0
LOAD CURRENT (A)
40
50
60
70
80
90
100
4091 G08
V = 12V
IN
V = 36V
IN
V
= 3.7V
BAT
CHARGER OFF
V = 24V
IN
0
40
80
120
160
200
T
R VALUE (k )
0.1
1
4091 G09
0
0.6
1.2
1.8
2.4
3
3.6
4.2
BATTERY VOLTAGE (V)
0
0.6
1.2
1.8
2.4
3.0
3.6
4.2
4.8
4091 G01
OUT
I
= 1A
BAT
V
OUT
V
BAT
I
1.0
1.5
2.0
0
0.5



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