SC8201 Silan Microelectronics, SC8201 Datasheet - Page 7

• Manufacturer Part Number: SC8201
• Description: ONE-CELL LI BATTERY PROTECTION CIRCUIT
• Manufacturer: Silan Microelectronics

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Over Current State→Normal State
STATE DIAGRAM OF OPERATION
HANGZHOU MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
V
CH
<V
(M)
CSI
<V
OD=0
V
up to V
R
OD=0
I
V
(pull-up to V
R
DD
OI2
CSI
CSID
CSI
CSID
Power down condition
≤IPD(0.3 A)
condition, (OD=0)
is shorted to V
is shorted to V
Charger connection
Abnormal charge
Current condition
(300k)
(300k)
Overdischarge
DD
Load connection
V
) via resistor
(OC=0)
CSI
DD
V
V
V
(K)
(L)
(J)
V
>V
V
OCU
OCR
ODR
V
V
V
V
V
V
) via resistor
ODL
CSI
OI2
DD
DD
DD
CH
SS
SS
OI2
DD
DD
V
(pull-
CSI
T
>V
OI1
V
(T)
CH
CSI
(-0.6V)
<V
( R )
V
CH
t>T
CSI
Charger detect @
V
V
(-0.6v)
DD
t>T
<V
OC
DD
Overcharge
Trickle charging by
automatic charging
OD=0
Release overdischarge
<V
(S)
OD
>V
CH
(100ms)
&
ODL
(P)
(I)
&
(-0.6V)
(10ms)
(N)
ODR
T
OI2
(2.4V)
(3.0v)
V
DD
(Q)
V
>V
V
DD
CSI
ODL
<V
>V
OCU
(H)
OI1
&
(0.15V)
V
(4.35V)
CSI
Over charge condition, (OC=0)
t>t
>V
OI1
(B)
OI1
&
(10ms)
V
Over current Ⅰ,Ⅱ
V
(0.15V)
Or short, (OD=0)
Normal condition
V
DD
(OD=OC=1)@
ODL
t>T
CH
SC8201 operation status diagram
>V
OC
<V
(F)
<V
OCU
(E)
(A)
(100ms)
&
&
CSI
DD
(4.35V)
<V
<V
t>T
OCU
OI1
V
CSI
OI2
( C )
>V
&
(5 s)
OI2
V
DD
REV:1.3
<V
OCR
>500kΩ
(G)
resistor
Load
(D)
(4.15V)
Page 7 of 10
SC8201
2008.06.25