The AP9234L is claimed to integrate a high-accuracy battery protection circuit with a dual N-channel common drain MOSFET that features an RSS(ON) of 13mO at VDD = 4.0V and ID = 1.0A typical. Safe battery charging and discharging is achieved by turning the MOSFET off when overcharge voltage/current, over-discharge voltage/current, or load short-circuit conditions are detected. A built-in fixed delay time also protects external components.
Stable voltage detection over the full -40 to 85°C operating temperature range is ensured by Diodes’ innovative design and process technology, which also delivers power savings through a low quiescent current, typically 3.0µA in normal mode and 0.1µA in power-down mode.
Additionally, an over-current detection voltage compensation circuit assures current limit accuracy. As well as a power-down capability, the AP9234L features a selectable auto-wake up function and offers protection voltage customisation to cater for different cell-type specifications.
