x3102v28 Intersil Corporation, x3102v28 Datasheet - Page 12

• Manufacturer Part Number: x3102v28
• Description: 3 Cell Li-ion Battery Protection And Monitor Ic
• Manufacturer: Intersil Corporation

B-
Q6
Q7
Q8
B+
Li-Ion cells
R
R
R
CB
CB
CB
3 or 4
100
100
100
†
0.01µF
0.01µF
0.01µF
1µF
1
2
3
4
5
6
7
8
VCELL1
CB1
VCELL2
CB2
VCELL3
CB3
V
NC
V
SS
BAT54
SS
9
D
28
V
6
CC
.
VCS1
R
BAT54
D
LMT
R
7
10
SENSE
27
RGP
I
VCS2
LMT
Discharge FET
11
26
RGC
X3102
Q
3
C
FIGURE 7. TYPICAL APPLICATION CIRCUIT
OV
25
RGO
OVT
V
12
RGO
C
UV
Q
24
UVP/
OCP
UVT
1
D
13
1
C
Q
OC
23
D
2
OVP/
LMON
OCT
2
14
SCK
AS2
AS1
AS0
AO
SO
CS
SI
R
1M
PU
Charge FET
22
20
19
18
17
16
15
21
Q
C1
0.1µF
I
D
LMON
10
3
Choose R1 and
C1 such that
V
0.1V (or less) in
170ms (or less)
when entering
the Sleep Mode
(at 25°C).
RGO
goes to
1M
(Optional)
R1
V
T
R
R
T
T
’
A/D
Ref
GP
I/O
A/D Input
A/D Input
Transistor Recommendations
Q1, Q2 = Si4435
Q3 = 2N3906
Q4 - Q10 = 2N7002
V
GP
CC
I/O
ASIC
Reset
µC,
GP
I/O
FETs Q4 and Q5 are needed
only if external pull-ups on
the SMBus lines cause
voltage to appear at the uC
Vcc pin during sleep mode.
C
R
POR
POR
Q5
Q
4
Set High
after power
up to enable
SMBus and
LMON
100
100
P-
P+
SMBDATA
SMBCLK