MP2618 MPS, MP2618 Datasheet - Page 15

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

OPERATION FLOW CHART
MP2618 Rev. 0.92
7/14/2010
MP2618 – 2A, 24V INPUT, 600kHz 2-3CELL SWITCHING LI-ION BATTERY CHARGER
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
Normal Operation
V
No
No
V
BATT_FULL
V
BATT_RECHG
Figure 5— Normal Charging Operation Flow Chart
BATT_TC
V
CHGOK is high
BATT
Charger “Off”,
=12.6V
V
= 9V
Battery Full?
=12V
BATT_RECHG
I
V
C.V.C
CELLS Float
>V
CHG
Yes
BATT
BATT_FULL
<I
<
BF
?
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Yes
V
BATT_TC
V
CELLS Status?
CHGOK is low
& SYS powered
Charger “On”,
V
IN
Charge Mode?
ACOK is low
V
BATT
>V
<V
Charging
UVLO
Set up?
C.C.C
POR
by IN
>V
BATT
BATT
Yes
Yes
Yes
<V
BATT_FULL
+0.3V?
<V
IN
&
BATT_FULL
No
No
No
V
V
CELLS= 0V
BATT
BATT
T.C.C
Yes
>V
<V
BATT_TC
BATT_TC
V
V
SYS powered by
V
BATT_FULL
BATT_RECHG
BATT_TC
BATT
No
=8.4V
=6V
=8V
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