MP2618 MPS, MP2618 Datasheet - Page 7

• Manufacturer Part Number: MP2618
• Description: 2a, 24v Input, 600khz 2-3 Cell Switching Li-ion Battery Charger With System Power Path Management
• Manufacturer: MPS

TYPICAL PERFORMANCE CHARACTERISTICS
V
T
MP2618 Rev. 0.92
7/14/2010
A
IN
=25ºC, unless otherwise noted.
8.5
8.4
8.3
8.2
8.1
7.9
7.8
7.7
7.6
7.5
8.5
8.4
8.3
8.2
8.1
2.5
1.5
0.5
=19V, C1=10µF, C2=4.7µF, C9=22µF, L=4.7µH, RS1=110mΩ, RS2=20mΩ, Real Battery Load,
8
8
2
1
0
2 Cells Battery Charge Curve
BATT Float Voltage vs. V
3 Cells I
0
0
8
B ATTER Y V OL TAGE(V )
2
20
13
4
TIMES(MIN)
40
CHG
V
MP2618 – 2A, 24V INPUT, 600kHz 2-3CELL SWITCHING LI-ION BATTERY CHARGER
V
I
IN
6
BATT
IN
V
60
18
vs. V
IN
=24V
(V)
=19V
8
2 Cells Battery
80
V
10
BATT
BATT
23
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
V
IN
100 120
=15V
12
Curve
14
28
IN
2.5
2
1.5
0.5
0
1
100.0
90.0
80.0
70.0
60.0
2.5
1.5
0.5
8.5
8.4
8.3
8.2
8.1
-20
2
1
0
8
Effciency vs. I
0
BATT Float Voltage
vs. Temperature
2 Cells I
0
© 2010 MPS. All Rights Reserved.
V
IN
V
www.MonolithicPower.com
0.4
IN
=12V
0
2
TEMPERATURE (
BATTERY VOLTAGE(V)
=24V
V
IN
CHG
=24V
20
V
0.8
V
IN
I
V
4
IN
CHG
IN
=19V
=12V
=19V
vs. V
V
40
2 Cells Battery
(A)
1.2
IN
2 Cells Battery
CHG
6
=15V
BATT
60
O
1.6
C)
8
80
Curve
10
2
100.0
90.0
80.0
70.0
60.0
12.8
12.6
12.4
12.2
11.8
11.6
11.4
11.2
2.2
1.8
1.6
1.4
1.2
12
11
Effciency vs. I
3 Cells Battery Charge Curve
2
-20
0
0
Charge Current
vs. Temperature
V
IN
=15V
0.4
TEMPERATURE (
I
0
BATT
V
50
IN
TIMES(MIN)
0.8
I
=24V
20
CHG
2 Cells Battery
(A)
CHG
V
3 Cells Battery
1.2
40
V
IN
100
BATT
=19V
O
1.6
60
C)
150
80
2
2.5
1.5
0.5
2
1
0
7