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LTC4162EUFD-FST#PBF Datasheet(PDF) 7 Page - Analog Devices

Part # LTC4162EUFD-FST#PBF
Description  35V/3.2A Multicell LiFePO4 Step-Down Battery Charger with PowerPath and I2C Telemetry
PDF  52 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

LTC4162EUFD-FST#PBF Datasheet(HTML) 7 Page - Analog Devices

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7
LTC4162-F
Rev A
For more information www.analog.com
TYPICAL PERFORMANCE CHARACTERISTICS
Charge Current vs Battery Voltage
Input Current and Charge Current
vs Load Current
Resistive Source Input Voltage and
Charge Current vs Load Current
VOUT vs VIN Power Path Controller
No Input Battery Drain Current vs
Battery Voltage
Ship Mode Battery Drain Current
vs Battery Voltage
Top and Bottom Switch RDS(ON)
Efficiency vs Input Voltage
Efficiency vs Switching Frequency
4.8
5.4
6.0
6.6
7.2
7.8
BATTERY VOLTAGE (V)
0.0
0.4
0.8
1.2
1.6
2.0
2.4
2.8
3.2
3.6
IN
V = 12V
CELL COUNT = 2
4162F G01
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6
LOAD CURRENT (A)
−0.4
0.0
0.4
0.8
1.2
1.6
2.0
2.4
2.8
3.2
3.6
CHARGE
CURRENT
INPUT
CURRENT
4162F G02
VIN = 18V
VBAT = 3.7V
iin_limit_target = 1.2A
0.0
0.5
1.0
1.5
2.0
2.5
3.0
LOAD CURRENT (A)
−0.4
0.0
0.4
0.8
1.2
1.6
2.0
2.4
2.8
3.2
3.6
CHARGE
CURRENT
INPUT
VOLTAGE
SOURCE IMPEDANCE = 5
input_undervoltage_setting = 7V
cell_count = 1
0
2
4
6
8
10
12
14
16
18
20
4162F G03
−0.05
0.00
0.05
0.10
0.15
0.20
IN
BAT
V − V
VOLTAGE (V)
11.9
12.0
12.1
12.2
12.3
4162F G04
IN
V
BAT
V
OUT
V
0
5
10
15
20
25
30
35
BATTERY VOLTAGE (V)
0
20
40
60
80
100
IN
V = 0V
–50°C
25°C
125°C
4162F G05
2.5
9.0
15.5
22.0
28.5
35.0
BATTERY VOLTAGE (V)
0
1
2
3
4
–50°C
25°C
125°C
4162F G06
0.2
0.7
1.2
1.7
2.2
2.7
3.2
SWITCH PIN CURRENT (A)
50
70
90
110
130
150
170
−50°C
25°C
75°C
125°C
4162F G07
5
10
15
20
25
30
35
INPUT VOLTAGE (V)
75
80
85
90
95
100
1 CELL
2 CELLS
3 CELLS
4 CELLS
5 CELLS
6 CELLS
7 CELLS
8 CELLS
9 CELLS
CHARGE
I
= 2.5A
4162F G08
1.0
1.5
2.0
2.5
3.0
3.5
4.0
SWITCHING FREQUENCY (MHz)
75
80
85
90
95
BAT
V
=6.6V
CHARGE
I
= 2.5A
cell_count = 2
4162F G09
VIN = 12V
VIN = 18V
VIN = 24V
VIN = 30V
TA = 25°C, unless otherwise noted.



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