18958537. FAIL-OPEN ISOLATOR (TEXAS INSTRUMENTS INCORPORATED)
FAIL-OPEN ISOLATOR
Organization Name
TEXAS INSTRUMENTS INCORPORATED
Inventor(s)
Ujwal Radhakrishna of San Jose CA (US)
Yogesh Ramadass of San Jose CA (US)
Anant Kamath of Bengaluru (IN)
Kashyap Barot of Bengaluru (IN)
FAIL-OPEN ISOLATOR
This abstract first appeared for US patent application 18958537 titled 'FAIL-OPEN ISOLATOR
Original Abstract Submitted
A device includes first and second device terminals, a fuse, a first circuit, a first transistor, and a control circuit. The fuse terminal couples to the first device terminal. The first circuit couples to the second fuse terminal. The second fuse terminal has a first voltage. The first transistor has a first control input and first and second current terminals. The first current terminal couples to the second fuse terminal, and the second current terminal couples to the second device terminal. The control circuit: turns âonâ the first transistor into a saturation region if the first voltage exceeds a threshold and a current through the fuse exceeds a trip threshold current of the fuse; and turns âonâ the first transistor into a linear region if the first voltage exceeds a threshold and a current through the fuse is below the trip threshold current of the fuse.