S-80844CNPF-B85TFG

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PMIC-Supervisors like S-80844CNPF-B85TFG is a type of integrated circuit used to groups several other low-level circuits into a single device. It combines the functions of voltage monitoring and voltage regulating.The S-80844CNPF-B85TFG is described as system management ICs. It is ideal for 3.3V, 5V and 12V applications and designed to monitor low battery systems, voltage sequencers and system resetting. A broad portfolio of well-engineered features including delays, masking, monitoring, and reset make this IC ideal for a variety of system requirements. The chip has a wide operating temperature range from -40°C to + 85°C .

In PMIC-Supervisors system, the S-80844CNPF-B85TFG provides the control and protection functions required by 3.3V, 5V, and 12V systems. It includes a fixed voltage monitor, an adjustable voltage monitor, a positive temperature coefficient reference, a push-button reset, an adjustable reset timeout, watchdog timers, a power-on reset, an overtemperature protection, an undervoltage lockout, and a battery monitor. This device supports two reset outputs and two power-good outputs. It also includes independent watchdog timers, and supports masking and delay functions.

The S-80844CNPF-B85TFG consists of a VDD supply and a Ground pin as the main part of its input. The pin configurations vary depending on the application. For example if the application is for a system that requires manual reset control, then there is a Reset pin available for this purpose. There are also various pins for functions such as reset, power-good, and voltage monitor.

The main working principle of the S-80844CNPF-B85TFG is the monitoring and controlling of the voltages provided to the system by this IC. The IC monitors the input voltages for irregularities and provides a feedback if an abnormality is detected. The on-chip comparator detects changes in the input voltages and trips the low battery or OVER voltage/UNDER voltage mask function. The user can select either a trigger or mask reset based on their application.

The IC also includes a power good output which indicates the presence of a good supply and is used to signal the system that the supply is ready and all the components are working properly. The adjustable reset timeout feature ensures that the IC has not reset the system, and that all components are still working properly. This feature works by monitoring the reset signal output and providing a signal to all the components that the system is in operational mode.

The IC also features an overtemperature protection and an undervoltage lockout for additional protection. The overtemperature protection monitor allows the system to more closely control the temperature of the chip and providing additional safety margin to the system from accidental temperature exceedances. The undervoltage lockout prevents the system from resetting due to low voltage input.

The S-80844CNPF-B85TFG is most suitable for applications such as DSP, FPGA, and microcontroller-based system where manual reset control, delay masking, voltage monitoring, and other functions are needed. It is also commonly used in CPLD and ASIC applications, as well as in power management systems. Its broad portfolio and well-engineered features make it an ideal solution for 3.3V, 5V, and 12V system requirements.

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