Invention Grant
- Patent Title: Predriver short protection
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Application No.: US15142852Application Date: 2016-04-29
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Publication No.: US10700586B2Publication Date: 2020-06-30
- Inventor: Shyamsunder Balasubramanian , Toshio Yamanaka , Toru Tanaka , Mayank Garg
- Applicant: TEXAS INSTRUMENTS INCORPORATED
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent Lawrence J. Bassuk; Charles A. Brill; Frank D. Cimino
- Main IPC: H02P29/02
- IPC: H02P29/02 ; H02P6/08 ; H03K5/134 ; H02P6/12 ; H02M1/08 ; H02M1/32 ; H03K17/12 ; H02P29/024 ; H03K17/0812 ; H03K17/687

Abstract:
A gate driver circuit includes a comparator and a gate driver. The comparator is configured to detect a short circuit in a first power field effect transistor (FET). The gate driver is configured to drive a gate of the first power FET by generating a first signal at a first drive current. In response to the comparator detecting a short circuit in the first power FET, the gate driver is further configured to pulse the first signal at a first pulldown current. After the pulse has ended, the gate driver is further configured to drive the gate of the first power FET at a first hold current. The first hold current is less than the first pulldown current.
Public/Granted literature
- US20170317619A1 PREDRIVER SHORT PROTECTION Public/Granted day:2017-11-02
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