The S-82K5AAA-K8T2U from ABLIC is a Battery Monitoring IC that has been designed for secondary protection of 3-serial to 5-serial rechargeable Li-ion battery packs. It requires an input voltage of 3.6-24 V. This battery management IC (BMIC) also supports a cascade connection that allows the monitoring of 5-serial or more cells. It consists of high-accuracy voltage detection and delay circuits that confirms over-charge detection operations. This BMIC allows the delay time to be set only by an internal circuit and does not require external capacitors for the adjustment. It consumes less than 3 µA of current during operation for high power efficiency. This BMIC is available in a surface-mount package that measures 4.00 x 2.90 x 0.80 mm.