S-8209BAA-T8T1Y Datasheet, PDF (5/26 Pages) Seiko Instruments Inc – BATTERY PROTECTION IC

Rev.3.6_00
BATTERY PROTECTION IC WITH CELL-BALANCE FUNCTION
S-8209B Series
3. Please contact our sales office for the products with detection voltage value other than those specified
above.
Users are able to select the overcharge detection voltage, overcharge release voltage, cell-balance
detection voltage and cell-balance release voltage from the range shown in Figure 2 and Figure 3.
Users are able to select how to combine the overcharge detection voltage (V_CU) and the overcharge release
voltage (V_CL) from the range A or B shown in Figure 2^*1.
Similarly, select how to combine the cell-balance detection voltage (V_BU) and the cell-balance release
voltage (V_BL) from the range of C or D in Figure 3^*2.
In selecting the combination of V_CU and V_CL from the range A, select the combination of V_BU and V_BL from
the range C. Similarly, in selecting the combination of V_CU and V_CL from the B range, select the combination
of V_BU and V_BL from the range D^*3.
4.40
4.40
4.20
A
4.20
C
3.90
B
3.90
D
3.55
3.55
3.50 3.55
3.80 3.90 4.00
4.40
Overcharge release voltage (VCL) [V]
3.50 3.55
3.80 3.90 4.00
4.40
Cell-balance release voltage (VBL) [V]
Figure 2
Figure 3
*1. Users are able to select the overcharge hysteresis voltage (V_CU − V_CL) in 0 V to 0.4 V, in 50 mV step.
*2. Users are able to select the cell-balancce hysteresis voltage (V_BU − V_BL) in 0 V to 0.4 V, in 50 mV step.
*3. Select as to set V_CU > V_BU.
5