API9221 charger equivalent, car/wall or usb supply input lithium battery charger.
To prevent system damage, the VUSB pin uses over voltage protection (OVP) at 5.4V, and the VDC OVP is at 6.9V. Above these levels, the non-operating device is protected .
enabling charging from a USB host, wall adapter, or car adapter. The PPR pin indicates to a host controller that a safe.
The API9221 has two supply inputs for highly integrated portable applications, enabling charging from a USB host, wall adapter, or car adapter. The PPR pin indicates to a host controller that a safe and valid supply is connected to either VUSB or VDC.
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