Integrated circuits for converting a high voltage level to a low voltage level
AssigneeTaiwan Semiconductor Manufacturing Company, Ltd.
InventorsMei-Chen CHUANG, Alan ROTH
Life of this patent
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Abstract
An integrated circuit includes a high side driver and a low side driver. The low side driver is electrically coupled with the high side driver. A circuit is electrically coupled with the high side driver and a first node between the high side driver and the low side driver. The circuit is configured to substantially turn off the high side driver if the high side driver leaves a cutoff region of the high side driver during a tri-state mode.
Claims19
An integrated circuit for converting a high voltage level to a low voltage level, the integrated circuit comprising:
- a high side driver;
- a low side driver electrically coupled with the high side driver;
- and
- a circuit electrically coupled with the high side driver and a first node between the high side driver and the low side driver, wherein the circuit is configured to substantially turn off the high side driver if the high side driver leaves a cutoff region of the high side driver during a tri-state mode.
An integrated circuit for converting a high voltage level to a low voltage level, the integrated circuit comprising:
- a high side driver electrically coupled with a power line that is configured to provide a first power voltage;
- a low side driver electrically coupled with the high side driver and a power line that is configured to provide a second power voltage;
- an inductor electrically coupled with a first node between the high side driver and the low side driver;
- a capacitor electrically coupled with the inductor;
- and
- a sensing circuit electrically coupled with the high side driver and the first node, wherein the sensing circuit is configured to sense if the high side driver leaves a cutoff region of the high side driver during the tri-state mode;
- and
- a control circuit electrically coupled with the sensing circuit, wherein the control circuit is configured to turn off the high side driver if the high side driver leaves the cutoff region during the tri-state mode.
An integrated circuit for converting a high voltage level to a low voltage level, the integrated circuit comprising:
- a high side driver electrically coupled with a power line that is configured to provide a first power voltage;
- a low side driver electrically coupled with the high side driver and a power line that is configured to provide a second power voltage;
- an inductor electrically coupled with a first node between the high side driver and the low side driver;
- a capacitor electrically coupled with the inductor;
- and
- a circuit electrically coupled with the first node and the high side driver, wherein the circuit comprises:
- a transistor, wherein a gate of the transistor is electrically coupled with the first node and a source of the transistor is electrically coupled with a gate of the high side driver;
- and
- a switch, wherein the switch is electrically coupled between the transistor and the power line that is configured to provide a second power voltage.
Dependencies are inferred from the claim text.