2022
DOI: 10.21203/rs.3.rs-1764931/v1
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Novel Current-limiting and Short-circuit Protection Technology for Low-side Power Switch

Abstract: Based on 0.35μm BCD process, a current-limiting and short-circuit protection circuit for low-side power switch is proposed. This design adopts the compact current comparator structure to achieve 2A current limiting protection and short circuit protection for the power switch over the temperature range of -25°C to 150°C, while quiescent power consumption is only 55.8μw. The sense-FET technology of this design can achieve 98.11% accurate current sampling. Simulation and experimental results show that when the lo… Show more

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