MP2681 – CC/CV CONTROLLER WITH FULL PROTECTION

MP2681 Rev.1.01

www.MonolithicPower.com

16

12/25/2013

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Charge ON

LED Indication

Charge Mode ?

CV comp is low

Battery Full?

C.V.C

C.C.C

YES

CC comp is low

NO

No Fault ?

NO

Auto-recharge?

NO

YES

Fault ?

YES

NTC

Fault

Timer

Out

Power

Line

Fault

Battery

Removed

Power Re - start up

Charge Off,

Fly- back output is

set to3.2V/cell,

LED indication

Charge full ,

Fly- back output is

set to3.2V/cell,

LED indication

Charge Off,

Fly-back output is

set to3.2V/cell,

LED indication

YES

NO

YES

Figure 7 — MP2681 Control Flow Chart