Title:
BANDGAP REFERENCE VOLTAGE GENERATION CIRCUIT AND SEMICONDUCTOR DEVICE INCLUDING SAME
Document Type and Number:
WIPO Patent Application WO/2024/019561
Kind Code:
A1
Abstract:
The present invention relates to a bandgap reference voltage generation circuit capable of stably generating a bandgap reference voltage by implementing a stable start-up operation regardless of changes in a driving environment. The bandgap reference voltage generation circuit, according to an embodiment, may comprise: a start-up circuit that outputs a start-up signal when a first power voltage rises; and a bandgap reference core circuit in which an operation is enabled in response to the start-up signal and that generates and outputs the bandgap reference voltage, wherein the start-up circuit may include: a beta-multiplier reference circuit including a cascode current mirror circuit that forms a first current path and a second current path between a first power line and a second power line; a start-up output unit that outputs the start-up signal in response to a voltage of an output node of the second current path; and a comparator that compares the bandgap reference voltage with a target voltage to disable the operation of the start-up circuit.
Inventors:
KO HYUN SU (KR)
Application Number:
PCT/KR2023/010478
Publication Date:
January 25, 2024
Filing Date:
July 20, 2023
Export Citation:
Assignee:
LX SEMICON CO LTD (KR)
International Classes:
G05F3/30
Foreign References:
| KR20140104203A | 2014-08-28 | |||
| KR20130123903A | 2013-11-13 | |||
| KR101417617B1 | 2014-07-09 | |||
| KR20010019863A | 2001-03-15 | |||
| US20210356981A1 | 2021-11-18 |
Attorney, Agent or Firm:
KBK & ASSOCIATES (KR)
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