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MP2623 Datasheet(PDF) 6 Page - Monolithic Power Systems

Part # MP2623
Description  Stand-Alone, 2A, 1- or2-Cell Switching LiFePO4 Battery Charger
PDF  16 Pages
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Manufacturer  MPS [Monolithic Power Systems]
Direct Link  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP2623 Datasheet(HTML) 6 Page - Monolithic Power Systems

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MP2623 – 2A, 24V INPUT, 1.1MHz 1- OR 2-CELL SWITCHING LIFEPO4 BATTERY CHARGER
MP2623 Rev. 1.0
www.MonolithicPower.com
6
3/16/2012
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.
TYPICAL PERFORMANCE CHARACTERISTICS
VIN=5V/ 9V, C1=4.7μF, C2=22μF, L=4.7μH, RS1=100mΩ, Real/Simulation Battery Load, TA=25°C,
unless otherwise noted.
TIMES(MIN)
2 Cells Charge Current vs.
Battery Voltage
Battery Simulator
BATTERY VOLTAGE(V)
TIMES(MIN)
BATTERY VOLTAGE(V)
NTC Control Window
0
0.5
1
1.5
2
2.5
3
8
1216
202428
Low Temp On
High Temp On
High Temp Off
Low Temp Off
Breakdown Voltage
INPUT VOLTAGE (V)
0
2
4
6
8
10
12
14
16
0
1020
3040
Efficiency vs.
Battery Voltage
1 Cell, ICHG=2A
Efficiency vs. ICHG
1 Cell, VBATT=3.6V
Efficiency vs. VIN
1 Cell, VBATT=3.4V, ICHG=2A
0
0.4
0.8
1.2
1.6
2
2.4
012
3
4
VIN=24V
6.5
6.6
6.7
6.8
6.9
7
7.1
7.2
7.3
0
5
10
15
20
25
0
0.4
0.8
1.2
1.6
2
2.4
01
23
45
67
8
0
10
20
30
40
50
60
70
80
90
2.5
2.7
2.9
3.1
3.3
3.5
3.7
VIN=5V
VIN=9V
VIN=19V
10
20
30
40
50
60
70
80
90
100
0
500 1000 1500 2000 2500
CHARGE CURRENT(A)
VIN=5
VIN=9V
VIN=19V
VIN=24V
0
10
20
30
40
50
60
70
80
90
0
5
10
15
20
25
VIN=9V
VIN=24
VIN=5V
1 Cell Battery Charge Curve
1 Cell Charge Current vs.
Battery Voltage
Battery Simulator
2 Cells Battery Charge Curve
3.27
3.32
3.37
3.42
3.47
3.52
3.57
3.62
010
20
30
40
50
60
0
0.5
1
1.5
2
2.5
ICHG
VBATT
0
0.5
1
1.5
2
2.5
ICHG
VBATT
INPUT VOLTAGE (V)
VIN=24V
BATTERY VOLTAGE(V)
INPUT VOLTAGE (V)



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