S-8225AAA-TCT1U Datasheet, PDF (19/26 Pages) Seiko Instruments Inc – BATTERY MONITORING IC

Rev.1.7_02
BATTERY MONITORING IC FOR 3-SERIAL TO 5-SERIAL CELL PACK
S-8225A Series
Table 9 Constants for External Components
Symbol
RVDD1, RVDD2
RVCn1, RVCn2
CVDS1, CVDS2
CVDD1, CVDD2
CVCn1, CVCn2
CCCT1, CCCT2
CCDT1, CCDT2
RIFC, RIFD
CIFC, CIFD
RCTLC, RCTLD
RSEL11, RSEL21
RSEL12, RSEL22
Min.
50
0.5
0.01
−
0.01
0.001
0.001
−
−
−
0.5
0.5
Typ.
100
1
0.1
0
0.1
0.1
0.1
5.1
1000
1
1
1
Max.
Unit
1000
Ω
2
kΩ
1
μF
1
μF
1
μF
0.22
μF
0.22
μF
−
MΩ
−
pF
−
kΩ
−
kΩ
−
kΩ
Caution 1. The above constants may be changed without notice.
2. The example of connection shown above and the constant do not guarantee proper operation.
Perform thorough evaluation using the actual application to set the constant.
3. RVC1 to RVC6 and CVC1 to CVC6 should be the same constant, respectively.
4. Set up RVCn and CVCn as RVCn × CVCn ≥ 50 × 10^-6.
5. Set up RVDD and CVDS as 5 × 10^-6 ≤ RVDD × CVDS ≤ 100 × 10^-6.
6. Set (RVDD × CVDS) / (RVCn × CVCn) = 0.1.
Remark n = 1 to 6
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