S-80837CLPF-B6WTFU

Series:	S-808xxC
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Voltage Detector
Number of Voltages Monitored:	1
Output:	Push-Pull, Totem Pole
Reset:	Active Low
Reset Timeout:	--
Voltage - Threshold:	3.7V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	4-SMD, Flat Leads
Supplier Device Package:	SNT-4A

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PMIC - Supervisors

Power management integrated circuits (PMICs) are essential for the operation of electrical circuits because they promote efficient energy management, improve safety, reduce system size and cost, and facilitate system adjustability. Supervisors are a form of PMIC that help control microcontrollers and other circuits. They do this by monitoring voltage, current, and temperature and taking appropriate actions if any of these parameters exceed their predetermined threshold values. The S-80837CLPF-B6WTFU is a power supervisor module that is designed particularly for embedded microprocessors and digital systems. The product offers all the features and functions required to provide complete system power management and supervision. This article will discuss the application of S-80837CLPF-B6WTFU and its working principle.

Application of S-80837CLPF-B6WTFU

The S-80837CLPF-B6WTFU includes a low-dropout (LDO) regulator, a power supervisor IC, and a 1.8V regulator that are all housed in a single, compact module. It can provide 1.8V and 3.3V power to the system core and I/O interfaces, respectively, and can thus help simplify the design of microprocessor-based systems. It also contains an internal LDOs that can generate lower voltages for specific components of the system. In addition, the S-80837CLPF-B6WTFU is designed to manage power supply sequencing, system resetting, power supply over-voltage and under-voltage conditions, external reset, and power-good signals. Its features and functions are carefully chosen to meet the requirements of digital systems that feature a low power microprocessor and related circuitry. The LDO and the 1.8V regulator features are able to provide power to the connected CPU with high accuracy and good line and load regulation, while the power supervisor IC is designed to monitor the power supply voltages, overvoltage and undervoltage conditions, and provide power-on reset, power-good output, and a manual reset signal. So in summary, the S-80837CLPF-B6WTFU is an ideal solution for embedded control systems that use low-power microprocessors and require power sequencing, resetting, and monitoring.

Working Principle of S-80837CLPF-B6WTFU

The S-80837CLPF-B6WTFU module is powered from a 3.3V source, and its internal LDO regulator generates a 1.8V output that is supplied to its power supervisor IC, which monitors voltage and current levels, as well as temperature. The power supervisor IC is then responsible for generating warning flags when any of these parameters exceed their predetermined threshold values. The supervisor IC also contains circuitry that generates reset signals. This circuitry consists of two low-power comparators (LPCs). The first LPC monitors the system voltage level and the second LPC monitors the power output level of the LDO. When the system voltage exceeds the determined threshold, the first LPC generates a reset signal that is used by the power supervisor IC to generate a power-on reset. Besides resetting the device, the S-80837CLPF-B6WTFU can also generate power-good signals. When the power supply is up and running and the voltage is stable, the power supervisor IC will generate a power-good signal which signifies that the system is running normally. This power-good signal can be used to indicate to the microprocessor that the system is ready to execute and respond to commands. If a power-off condition occurs, the power supervisor IC will send a signal to the microprocessor to halt its current operations.The S-80837CLPF-B6WTFU is also equipped with a manual reset circuitry that is responsible for generating a reset signal whenever a user manually triggers the reset pin. This reset signal can be used to reset the microprocessor and the entire system, and is especially useful in the event of a fault occurring while the power is still on.

Conclusion

The S-80837CLPF-B6WTFU is a power supervisor module designed specifically for low-power microprocessor-based systems. It offers all the features and functions required for reliable, robust power management and is easy to integrate into digital systems. It includes an integrated LDO, power supervisor IC, and 1.8V regulator, and its internal circuitry generates power-on reset, power-good signals, and manual reset signal whenever necessary. It also monitors the system voltage, current and temperature levels and warns the system of any unusual changes. This power supervisor is thus a great choice for embedded control applications that need reliable, robust and cost-effective power management.

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