S-8200ABX-M6T1U – SEIKO

The S-8200ABX-M6T1U, manufactured by SEIKO, is a single-cell lithium-ion battery protection IC implemented in a SOT-23-6 package. This device provides overcharge, overdischarge, and overcurrent protection for lithium-ion battery packs. Specifically, the S-8200ABX monitors the cell voltage and load current, triggering protection mechanisms when predetermined thresholds are exceeded. The overcharge detection voltage is typically in the range of 4.2V to 4.3V, while the overdischarge detection voltage is typically around 2.3V to 2.5V. The overcurrent protection is implemented by monitoring the voltage drop across an external sense resistor and activating a FET driver to disconnect the battery from the load in an overcurrent condition. The device features low quiescent current consumption to minimize battery drain during standby operation.