ISL88001IH31Z-T

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PMIC (Power Management IC) supervisors are a type of integrated circuit that helps regulate power supply voltages and current. They also perform important safety functions, such as detecting and isolating overvoltages and extreme temperatures. ISL88001IH31Z-T is one such supervisor IC.

ISL88001IH31Z-T Application Field

ISL88001IH31Z-T is designed for use in a wide variety of applications, including:

• Data Centers
• Telecom Equipment
• Industrial Automation
• Automotive Electronics

ISL88001IH31Z-T enables superior electro-magnetic compatibility (EMC) performance compared to that of other available supervisors. It also has a Temperature Modulated Heating mode (TMH) technique to guarantee excellent thermal performance. This feature helps reduce the need for large, expensive heat sinks.

ISL88001IH31Z-T Working Principle

The ISL88001IH31Z-T has two independent voltage supervisor channels, each providing one reset output. The reset output is asserted if the input voltage drops below the programmed threshold voltage or stays low for longer than the programmed timeout period. The reset output can be inverted, allowing for the supervisor circuit to be used in both active-low and active-high reset configurations.

The reset voltage threshold can be programmed between 1.1 V and 4.7 V with a resolution of 0.1 V. Timeouts can be programmed between 20 ms and 3 s, providing either an immediate or delayed reset response. The supervisor also offers selectable power-up/power-down delay. This helps reduce the risk of false positives during power transients.

The supervisor combines the conventional power-up/power-down delay feature with a soft reset function. This allows the reset output to be temporarily de-asserted without resetting the input voltage threshold or timeout parameters.

The ISL88001IH31Z-T also provides a manual reset input for additional design flexibility. It also integrates a watchdog timer that can be used to detect reset malfunctions or other system errors.

Conclusion

The ISL88001IH31Z-T is a high-performance supervisor IC that can be used in a variety of applications. Its wide range of features makes it ideal for data centers, telecom equipment, industrial automation, and automotive electronics. It has excellent EMC performance, a TMH technique for improved thermal performance, and selectable power-up/power-down delays for reduced risk of false positives. Its manual reset input and watchdog timer further enhance its flexibility.

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