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US 10,539,999 B2Granted
Semiconductor device and method of operating the same
AssigneeSamsung Electronics Co., Ltd.
InventorsJe Kook Kim, Sung Ha Park
Life of this patent
Estimating the term…
Abstract
A semiconductor device is provided. The semiconductor device includes a receptacle which comprises a plurality of pins according to a universal serial bus (USB) type-C receptacle interface and a power delivery integrated circuit (PD IC) which transmits a toggle voltage signal that toggles between a first voltage level and a second voltage level to a first pin among the pins and detects a voltage level of a signal output from the first pin.
Claims12
A semiconductor device comprising:
- a receptacle including a plurality of pins according to a universal serial bus (USB) type-C receptacle interface;
- and
- a power delivery integrated circuit (PD IC) configured to,
- generate a toggle voltage signal such that the toggle voltage signal is repeatedly pulled up to a first voltage level by connecting a first pin among the pins to a pull-up circuit and pulled down to a second voltage level by one of disconnecting the first pin from the pull-up circuit or connecting the first pin to a pull-down circuit, and the toggle voltage signal includes a first toggle voltage signal which toggles at a first frequency and a second toggle voltage signal which toggles at a second frequency different from the first frequency, and
- detect water in the receptacle by,
- transmitting the first toggle voltage signal to the first pin and subsequently transmitting the second toggle voltage signal to the first pin such that the toggle voltage signal toggles between the first voltage level and the second voltage level, and
- detecting a voltage level of a signal output from the first pin.
4 more elements
A semiconductor device comprising:
- a receptacle including a plurality of pins according to a USB type-C receptacle interface, the plurality of pins including a first pin and a second pin;
- a PD IC configured to transmit a voltage signal to the first pin, and to detect a signal output from the first pin;
- and
- a USB chipset configured to,
- generate a toggle voltage signal such that the toggle voltage signal is repeatedly pulled up to a first voltage level by connecting the first pin to a pull-up circuit and pulled down to a second voltage level by one of disconnecting the first pin from the pull-up circuit or connecting the first pin to a pull-down circuit and the toggle voltage signal includes a first toggle voltage signal which toggles at a first frequency and a second toggle voltage signal which toggles at a second frequency different from the first frequency, and
- detect water in the receptacle by,
- transmitting the first toggle voltage signal to the second pin and subsequently transmitting the second toggle voltage signal to the second pin such that the toggle voltage signal toggles between the first voltage level and the second voltage level, and
- detecting a voltage level of a signal output from the second pin.
5 more elements
Dependencies are inferred from the claim text.