Hybrid overvoltage protection device and assembly
AssigneeLittelfuse Semiconductor (Wuxi) Co., Ltd.
InventorsJifeng Zhou, Weihua Tian, Teddy To, Chuan Fang Chin
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Abstract
In one embodiment, an overvoltage protection device (100) may include a crowbar device (106), where the crowbar device (106) includes a first crowbar terminal (115), the first crowbar terminal (115) connected with a first external voltage line (102). The overvoltage protection device (100) may further include a transient voltage suppression (TVS) device (108), where the TVS device (108) includes a second TVS terminal (121), the second TVS terminal (121) connected with a second external voltage line (104). The crowbar device (106) and the TVS device (108) may be arranged in electrical series between the first crowbar terminal (115) and the second TVS terminal (121).
Claims19
An overvoltage protection device, comprising:
- a crowbar device, the crowbar device including:
- a first crowbar terminal, the first crowbar terminal for connection to a first external voltage line;
- and
- a transient voltage suppression (TVS) device, the TVS device having:
- a second TVS terminal, the second TVS terminal for connection to a second external voltage line, wherein the crowbar device and the TVS device are arranged in electrical series between the first crowbar terminal and the second TVS terminal.
An overvoltage protection assembly, comprising:
- a first semiconductor chip, the first semiconductor chip comprising a crowbar device;
- and
- a second semiconductor chip, the second semiconductor chip comprising a TVS device and being electrically connected to the first semiconductor chip;
- wherein the overvoltage protection assembly comprises a first external terminal forming contact with the crowbar device, the first external terminal for connection to a first external voltage line, and
- wherein the overvoltage protection device comprises a second external terminal forming contact with the TVS device, the second external terminal for connection to a second external voltage line, wherein the crowbar device and the TVS device are arranged in electrical series between the first external terminal and the second external terminal.
Dependencies are inferred from the claim text.