S-80820CLPF-B6FTFU Integrated Circuits (ICs)

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:	2V
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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What is S-80820CLPF-B6FTFU?

S-80820CLPF-B6FTFU is a power management integrated circuit (PMIC) specifically designed for monitoring and protecting low voltage power supplies. It is a three-pin PMIC supervisor device from Renesas Electronics, which is designed to sense power failure and reset over-voltage protection (OVP) to improve system reliability and robustness. It is built upon high-performance CMOS Clamp technology, and offers fast response and accurate reset outputs with low power consumption.

Application Field

S-80820CLPF-B6FTFU is suitable for a wide variety of power management applications such as automotive systems, industrial automation, medical and aerospace. Its low-voltage capabilities make it particularly well-suited for portable systems and battery operated devices. It is able to monitor and protect power systems up to 7 V, and is able to detect over-voltage and under-voltage conditions with guaranteed accuracy.

Working Principle

S-80820CLPF-B6FTFU is based upon a CMOS-Clamp technology, which is a combination of a fast, low power amplifier and peak detector circuit which can be used for voltage threshold detection. An internal prescaler circuit is responsible for setting the reset threshold of the device, which is adjustable from 2.5V to 7.0V, with a 0.5V step. The overvoltage protection (OVP) is accomplished by internally setting the reset threshold to a value slightly above the expected power supply voltage. When the power supply voltage exceeds the set threshold voltage, the PMIC will assert a reset signal and shut down the power supply voltage.The device also features a delay timer which is used to set the reset time window. This will allow the PMIC to reset the system only if the power supply voltage remains above the set threshold for more than the specified reset window. This ensures that erroneous matches due to transient spikes will not cause a reset.The output of the PMIC can also be connected to an interrupt pin in order to provide an interrupt notification. This can be used to signal an operating system of the occurrence of an over-voltage or under-voltage condition.

Benefits

S-80820CLPF-B6FTFU offers a wide range of protection and monitoring features and benefits by providing an accurate reset with low power consumption and quick response. It is excellent for designing reliable and robust power systems such as automotive motion control systems, industrial control and medical devices. It also supports adjustable reset thresholds of up to 7V, providing flexibility to develop a wide range of applications. In addition, its internal delay timer prevents erroneous reset by ensuring that a reset is only triggered when the power supply voltage is above the set threshold for more than the specified reset window.In conclusion, the S-80820CLPF-B6FTFU is a great choice for system designers looking for a reliable, precisely adjustable PMIC supervisor for their applications. It can effectively monitor and protect the power system, ensuring that it runs smoothly and reliably. Furthermore, its adjustable reset thresholds and delay timer ensures that erroneous reset are prevented, making it an ideal device for many power supply applications.

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