S-8213AAB-I6T1U Datasheet, PDF (11/28 Pages) Seiko Instruments Inc – BATTERY PROTECTION IC FOR 2-SERIAL

Rev.1.3_03
BATTERY PROTECTION IC FOR 2-SERIAL / 3-SERIAL CELL PACK (SECONDARY PROTECTION)
S-8213 Series
 Operation
Remark Refer to " Battery Protection IC Connection Examples".
1. Normal status
If the voltage of each of the batteries is lower than "the overcharge detection voltage (VCUn) + the overcharge hysteresis
voltage (VHCn)", CO pin output changes to "L" (Active "H") or "H" (Active "L"). This is called normal status.
2. Overcharge status
When the voltage of one of the batteries exceeds VCUn during charging under normal conditions and the status is
retained for the overcharge detection delay time (tCU) or longer, CO pin output changes. This is called overcharge
status. Connecting FET to the CO pin provides charge control and a second protection.
If the voltage of each of the batteries is lower than VCUn + VHCn and the status is retained for 2.0 ms typ. or longer, the
S-8213 Series changes to normal status.
11