AN2865

STUSBCD01B description

Doc ID 15283 Rev 1

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STUSBCD01B description

The STUSBCD01B is the ideal solution for all mobile products using the USB bus for battery

charging. It can be used in all USB architectures (low-, full- or high-speed) where the

transceiver or the battery charger does not have smart charger detection. The

STUSBCD01B implements two different detection methods to distinguish between

dedicated chargers, charging host ports and standard host ports.

The device can be fully controlled through digital inputs (software detection mode) and is

also able to perform the charger detection automatically when the battery voltage is too low

referred open-drain output (detect) is available for direct control over the USB charging

controller.

The STUSBCD01B also provides a clamping circuit which can be used to protect each USB

components and its power consumption is extremely low.