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US 12,749,886 B2Granted
Methods and apparatus to disconnect circuitry responsive to a fault condition
AssigneeTexas Instruments Incorporated
InventorsHakan Oner, Marc Davis-Marsh, Ankit Gupta
Life of this patent
Estimating the term…
Abstract
An example apparatus includes: a supply terminal; fuse circuitry having a first terminal, a second terminal, and an enable terminal, the first terminal of the fuse circuitry coupled to the supply terminal; fault circuitry having an enable terminal and a fault terminal, the enable terminal coupled to the supply terminal, the fault terminal coupled to the enable terminal of the fuse circuitry; and converter circuitry having a terminal coupled to the second terminal of the fuse circuitry.
Claims20
An apparatus comprising:
- a supply terminal;
- fuse circuitry having a first terminal, a second terminal, and an enable terminal, the first terminal of the fuse circuitry coupled to the supply terminal;
- fault circuitry having an enable terminal and a fault terminal, the enable terminal coupled to the supply terminal, the fault terminal coupled to the enable terminal of the fuse circuitry, the fault circuitry including circuitry having a power terminal coupled to the enable terminal and an output coupled to the fault terminal, the fault circuitry configurable to receive power from the enable terminal via the power terminal;
- and
- converter circuitry having a terminal coupled to the second terminal of the fuse circuitry.
2 more elements
An apparatus comprising:
- a supply terminal coupled to an enable terminal;
- fault detection circuitry having a terminal;
- fault latch circuitry having a first terminal, a second terminal, and a third terminal, the first terminal of the fault latch circuitry being a power terminal coupled to and receiving power from the enable terminal, the second terminal of the fault latch circuitry coupled to the terminal of the fault detection circuitry;
- and
- a transistor having a first terminal and a control terminal, the first terminal coupled to the supply terminal, the control terminal of the transistor coupled to the third terminal of the fault latch circuitry.
2 more elements
An apparatus comprising:
- fuse circuitry configurable to control transmission of power from a supply terminal and having an enable terminal;
- and
- fault circuitry coupled to the fuse circuitry, the fault circuitry having latch circuitry configurable to receive power from the enable terminal via the supply terminal and configurable to:
- generate an assert fault indication responsive to a fault condition being met;
- set a fault gate indication responsive to latching the assert fault indication by the latch circuitry;
- disable the transmission of power by the fuse circuitry responsive to latching the assert fault indication by the latch circuitry;
- and
- reset the fault gate indication responsive to a reset condition being met.
5 more elements
Dependencies are inferred from the claim text.