S-80847CNMC-B88T2G

Series:	S-808xxC
Packaging:	Tape & Reel (TR)
Part Status:	Not For New Designs
Type:	Voltage Detector
Number of Voltages Monitored:	1
Output:	Open Drain or Open Collector
Reset:	Active Low
Reset Timeout:	--
Voltage - Threshold:	4.7V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	SC-74A, SOT-753
Supplier Device Package:	SOT-23-5

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Introduction:The S-80847CNMC-B88T2G is a product from NXP Semiconductors and is a Power Management IC (PMIC) featuring two independent Supervisors with the user adjustable thresholds. It is designed for various applications and integrates a load switch for the stepping up or down the system voltages. Application field:The S-80847CNMC-B88T2G is equipped with two independent supervisors, aimed for various application fields such as for monitoring the power sequencing, power protection sequencing in applications like Automotive and Industrial, High-end Mobile devices, and Lithium-Battery applications. The high flexibility of the product allows designers to precisely set thresholds to their own specifications and make safe and reliable systems in any type of environment. The advanced level of accuracy ensures the safety and reliability of the whole system even in the presence of excessive noise or other variables. This PMIC provides protection against power off/on surges and short-circuits. It provides both time-delay and voltage-level detection, thereby avoiding false triggering in environments with excessive power noise.The product also implements an internal load switch that can step-up/step-down the output voltage, as well as configurable delays for enabling and disabling the output. This helps reduce the power consumed by the system by eliminating the idle current, providing optimal performance and extending battery life.Working Principle:The S-80847CNMC-B88T2G consists of two independent supervising ICs that serve as a reliable power management system. The ICs use a dual-stage architecture, with separate circuits for setting the trip threshold level and monitoring the input voltage. The input voltage levels are set by four voltage setting resistor (VSER1, VSER2, VSER3 & VSER4) configured in the PMIC. The input voltage is then compared against the curren-set threshold using a comparator circuit.When the voltage falls below the threshold, the supervisor ICs begin setting the load switch drivers to activate the protection features. The power-ON switch enables the system to turn on the power supply, while the power-OFF switch is used to turn off the output when the voltage drops too low. The supervisor ICs are also responsible for providing the power-ON reset signal, which is used to reset the system controller back to its default state. The PMIC also incorporates a voltage monitor circuit, which is used to monitor the external supply voltages. It can detect faults in the external power supplies due to short-circuits, ESD, and other causes. If an abnormal condition is detected, the voltage monitor circuit will trip the power-OFF switch and shut-down the system until the fault is removed.Conclusion:The S-80847CNMC-B88T2G is an advanced, high performance Power Management IC (PMIC) designed for various application fields such as Low Power Mobile/Lithium-Battery applications, High-end Automotive, and Industrial applications. The product features two independent Supervisors for reliable power management and protection sequencing, as well as a load switch for stepping up or down system voltages with precise voltage setting resistors. The product also includes a voltage monitor for detecting faults in the external power supplies. The advanced level of accuracy and flexibility of the S-80847CNMC-B88T2G makes it an ideal choice for building reliable and safe systems in varying environments.

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