AS1903C26-T

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Power management integrated circuits (PMIC) are a group of integrated circuits designed to provide power and regulate voltage. PMICs are used in a wide range of applications, from cell phones and embedded systems to industrial and automotive applications. The PMICs are usually integrated with other devices and form part of the total system solution. The PMICs are usually sub-categorized according to the type of primary power source and the secondary power sources used. Supervisors are a type of PMIC that ensures a safe and reliable board power-up sequence. The AS1903C26-T is a supervisor from Allegro MicroSystems LLC, a leader in the PMIC industry.The AS1903C26-T is a 3 V/5 V supervisor with a watchdog timer and over temperature protection. It is designed to monitor system power good and reset signals for system reset during power-up sequencing or power supply glitches. The AS1903C26-T is offered in an ultra-small 8-pin LLP (Leadless Leadframe Package) package and has a wide operating temperature range of -40°C to +125°C. It is suitable for automotive, industrial and communication applications.The AS1903C26-T supervisor has two main functions: voltage regulation and watchdog timer operation. The two components of power management, namely the voltage regulator and watchdog timer, are used to monitor system power and reset signals.The voltage regulator portion of the supervisor monitors system power, reset, and supply voltage conditions. The supervisor output is used to control system power and reset switches in order to ensure accurate power-up sequencing. The voltage regulator also has an adjustable voltage level which can be set to match the system Vcc supply.The watchdog timer monitors system activity. The watchdog timer runs continuously and will reset the system if it does not receive a regular response within a defined time. The watchdog timer can detect incorrect operation or irregular activities, such as programming errors or interference from external objects.The AS1903C26-T supervisor has a wide range of features and benefits that make it ideal for power sequencing and switching applications in automotive, industrial, and communication systems. It offers a wide range of adjustable voltage levels, over temperature protection, and a watchdog timer to ensure reliable and safe power up sequencing. The AS1903C26-T supervisor is a cost-effective and reliable solution for power management applications.

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