Texas Instruments Corporation

Infineon Technologies Canada Inc.

Thomas Vermeer

Mustapha El Markhi

Rohit Bhan

Daniel A Mavencamp

Norelis Medina

An integrated circuit that is capable of bidirectional communication with an external host device via various communication protocols. In order to determine which communication protocols the incoming signal is using, the integrated circuit further includes an interface detector. When the interface detector determines that the incoming signal represents a portion of a transaction that uses a first communication protocol, the integrated circuit permits the first communication protocol engine to communicate in the transaction. Likewise, when the interface detector determines that the incoming signal represents a portion of a transaction that uses the second communication protocol, the integrated circuit permits the second communication protocol engine to communicate in the transaction. This allows the integrated circuit to detect the protocol regardless of whether one or two package terminals are used in the protocol.

Package and integrated circuit with interface detection

Aspects of the present disclosure provide for circuit. In at least some examples, the circuit includes a controller, a current source, a switch, and a digital-to-analog converter (DAC). The controller includes an analog-to-digital converter (ADC) having an input and an output, a first register, and a second register coupled to the output of the ADC. The switch is coupled between an output of the current source and a first node and has a control terminal coupled to the controller. The first node is coupled to the input of the ADC and is configured to couple to a resistor. The DAC has an input coupled to the controller and an output configured to couple to a battery.

Charging current limit circuit

A system includes an adapter port and a control circuit coupled to the adapter port. The system also includes host hardware coupled to the control circuit. The control circuit is configured to reset the host hardware in response to detecting an adapter removal pattern at the adapter port.

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Plano, TX, United States of America

Thomas Vermeer