ET9562 is a linear single cell Li-ion battery charger integrated power path management. The charger uses a CC/CV charge profile required by Li-ion battery. It also accepts an input voltage up to 24V and will cut off rapidly when the input voltage exceeds OVP threshold (Typically 6.0V). The charger features trickle charge, constant current and constant voltage regulation, charge termination, and charge status.
The internal Power Path Management can balance the input current to system and battery, which ensures continuous power to the system from input, battery or both. Also ET9562 integrates dynamic power management. When system load is heavy, the charge current will be reduced to keep input current or input voltage in regulation.
ET9562 provides over-current protection from input to the system and battery to the system. This can prevent the Li-on battery from being damaged by excessively high current. Input and battery under-voltage lockout (UVLO) will cuts off the load path when power supply is unstable. An integrated I2C control interface allows the ET9562 to program the critical parameters, such as battery constant voltage, constant charge current, trickle charge threshold, battery regulation voltage, battery UVLO, input voltage regulation, input current regulation, and system voltage regulation.
The ET9562’s high integration can simply system design and reduce the number of components outside. The device is packaged in advanced Full-Green compliant WCSP package.