BU4917F-TR

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The BU4917F-TR is a device focused on protecting microcontrollers from various accuracy problems including poor power supply, stalled microprocessor clocks, and unexpected reset conditions. It belongs to the family of PMIC or Power Management ICs, specifically classified as Supervisors. Supervisors are helpful for ensuring accurate operation of microcontrollers and preventing any issue that could arise due to an unexpected reset or inaccurate power supply.

The BU4917F-TR especially targets microcontrollers that are used in applications requiring ultra-low power consumption. It features an extremely small power consumption level and offers up to 10mA of voltage supply current. This feature is particularly useful for low power applications like wearable and mobile devices.

The BU4917F-TR also supports various reset conditions which makes it highly reliable. It supports both active-high/active-low RESET input transfers and manual reset. With active-high inputs, the output reset state is determined by either the high or low level of the RESET input domain. When the RESET input goes low, the output goes low and the microcontroller is reset. With active-low, the output reset state is determined by the low level of the RESET input line, and when it goes high, the output reset goes high and the microcontroller is reset.

In addition to RESET input, the BU4917F-TR also offers clock monitoring capability. It detects a sudden decrease in the clock frequency of the main IC and triggers a reset. This can be of tremendous help in applications where a fast and accurate reaction to clock problems is critical.

The BU4917F-TR is available in different packages that allow for various wiring shapes and sizes. It is also equipped with a small margin voltage monitor, which is used to monitor the voltage level of the whole supply range. It also has to a current sink facility which allows it to detect an over-current condition and quickly initiate a reset.

The BU4917F-TR is a highly reliable and ultra-low power supervisor IC which can be used to protect microcontrollers from inaccurate power supply, stalled microprocessor clocks, and SoC-related problems. Its ability to monitor the main supply voltage, detect unexpected reset conditions, and offer active-high/active-low reset signals makes it ideal for applications requiring ultra-low power consumption and fast response time.

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