S-80851CNY-B2-U

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The S-80851CNY-B2-U is a highly integrated integrated circuit that belongs to the family of PMIC (Power Management Integrated Circuits) Supervisors. It is widely used in applications such as mobile phones, digital cameras and portable audio players, as well as in automotive, industrial and medical applications.

The S-80851CNY-B2-U incorporated by Ricoh Company of Japan is designed to monitor temperature, power failure status and a choice of voltage and current levels, among other features. It can detect a wide range of input voltages and generates an output if the monitored voltage and current levels cross a user-defined threshold. It is also equipped with three reset outputs that can be used as a power-on reset, a watchdog timer reset, and an over-voltage protection reset.

The device provides excellent protection against over-voltage and over-current conditions, and is capable of guarding against various scenarios, such as brown-out conditions and over-temperature shutdowns. It also monitors the input power rail voltage and generates a reset signal if the monitored voltage crosses a particular threshold. The watchdog timer reset feature prevents a faulty processor from entering a locked state or resetting the system, and is used to keep the device in a "watchdog" mode until the voltage level returns back to normal. This helps to prevent the system from entering an unstable or frozen state.

The S-80851CNY-B2-U is suitable for high-side 3-channel MOSFET or N-channel MOSFET usage, and includes a comparator to detect any IR drop across a power-MOSFET or any other switching FET. It also provides a delay logic that can be used to control the rise-fall time of the MOSFET. It offers an adjustable output current range of up to 1.6A and a wide operating temperature range of -40°C to 105°C, making it suitable for harsh industrial, automotive and medical applications.

In terms of its working principle, the S-80851CNY-B2-U provides a step-down supply from the main supply rail, which provides excellent protection against over-voltage, over-current and ESD (ElectroStatic Discharge) conditions. It is capable of providing output current and voltages that can be adjusted precisely to the required levels. It also allows for fast reset and power-up response times in applications with variable supply voltages. It is also able power management circuits, such as voltage co-regulators, power-FETs, and DC-to-DC converters.

The S-80851CNY-B2-U is a highly integrated and cost-effective device which can offer great protection against over-voltage, over-current and ESD conditions in various applications. It is suitable for high-side 3-channel MOSFET or N-channel MOSFET usage, and provides a wide input voltage and current ranges, adjustable output current, wide operating temperature range and fast reset/power-up response times. It is suitable for a variety of applications such as mobile phones, digital cameras, portable audio players, automotive, industrial and medical applications.

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