公开(公告)号：US20230275442A1

公开(公告)日：2023-08-31

申请号：US18313658

申请日：2023-05-08

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Mustapha EL MARKHI ,  Alejandro VERA ,  Tonmoy ROY ,  Rohit BHAN

IPC: H02J7/00

CPC classification number: H02J7/0031 ,  H02J7/00 ,  H02J7/00302 ,  H02J7/00304

Abstract: Aspects of the disclosure provide for a circuit. In at least some examples, the circuit includes a logic circuit, a first comparator, a second comparator, and an AND logic circuit. The logic circuit has an output and the first comparator has a first input coupled to an input voltage (VIN) pin, a second input configured to receive a Vin under voltage lockout (VINUVLO) threshold value, and an output. The second comparator has a first input coupled to a power middle (PMID) pin, a second input coupled to a battery pin, and an output and the AND logic circuit has a first input coupled to the output of the logic circuit, a second input coupled to the output of the first comparator, a third input coupled to the output of the second comparator, and an output coupled to an input of a field-effect transistor (FET) control circuit.

公开(公告)号：US20170317625A1

公开(公告)日：2017-11-02

申请号：US15142219

申请日：2016-04-29

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Alejandro VERA ,  Shyamsunder BALASUBRAMANIAN ,  Toshio YAMANAKA ,  Toru TANAKA

IPC: H02P8/12 ,  G05F1/595

CPC classification number: H02P8/12 ,  G05F1/595 ,  H02P8/36 ,  H02P29/02

Abstract: A voltage regulator includes an output transistor, an error amplifier coupled to the output transistor, a cascode transistor coupled to the output transistor in series, and a cascode bias circuit coupled to the cascode transistor and the output transistor. The output transistor is configured to generate an output signal at a first voltage. The error amplifier is configured to receive a reference signal. The cascode bias circuit is configured to bias the cascode transistor such that, in response to a drain-to-source short circuit of the output transistor, the cascode transistor generates the output signal at the first voltage.