One-cell Li-ion/Li-polymer

battery protection IC

EC9526

4C12N-Rev.P001

Page 6 of 7

BLOCK DIAGRAM / TYPICAL APPLICATION CIRCUIT

R1 and C1 stabilize a supply voltage ripple. However, the detection voltage rises by the current of penetration in IC of the

voltage detection when R1 is enlarged, and the value of R1 is adjusted to 1kohm or less. Moreover, adjust the value of C1

to 0.01uF or more to do the stability operation, please.

R1 and R2 resistors are current limit resistance if a charger is connected reversibly or a high-voltage charger that exceeds

the absolute maximum rating is connected. R1 and R2 may cause a power consumption will be over rating of power

dissipation, therefore the `R1+R2` should be more than 1kohm. Moreover, if R2 is too enlarged, the charger connection

release cannot be occasionally done after the overdischarge is detected, so adjust the value of R2 to 10kohm or less,

please.

C2 and C3 capacitors have effect that the system stability about voltage ripple or extraneous noise. After check

characteristics, decide that these capacitors should be inserted or not, where should be inserted, and capacitance value,

please.