fs326 Fortune Semiconductor Corporation, fs326 Datasheet - Page 9

• Manufacturer Part Number: fs326
• Description: One Cell Lithium-ion/polymer Battery Protection Ic
• Manufacturer: Fortune Semiconductor Corporation

Rev. 1.9
11. State Diagram of Operation
VCSI<VOI2
(M)
Abnormal charge
current condition,
condition,
Over discharge
OD=0
I
DD
Power down
<= IPD(0.1μA)
condition
VCSI>VOI2
(OC=0)
(J)
(L)
(K)
(OD=0)
VCSI>VCH
(T)
VCSI<VCH
(R)
VDD<VOCU
VCSI<VCH
OD=0
Overdischarge hystersis
is released.
Trickle charging by
automatic charger.
overdischarge
VCH<VCSI<VOI2
t>TOC
detected @
Charger is
(S)
VDD>VODR
&
&
VDD<VODL
t>TOD
(P)
(N)
VDD>VODL
&
VCSI<VCH
(I)
&
(Q)
&
VDD<VOCU
VCSI>VOI1
(H)
&
VCSI>VOI1
t>TOI1
(B)
&
Over current or Short
condition,
VODL<VDD<VOCU
Normal condition
circuit condition,
VCH<VCSI<VOI1
Over charge
(OD=OC=1)@
VDD>VOCU
(OD=0)
t>TOC
(F)
(A)
(E)
&
&
(OC=0)
VCSI>VOI2
t>TOI2
(C)
&
VOI1>VCSI>VCH
VDD<VOCR
(G)
&
Load impedence
>500KΩ
FS326
(D)
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