S-1003CB29I-I6T1U

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The S-1003CB29I-I6T1U PMIC (Power Management Integrated Circuit) - Supervisor is a voltage monitoring, low voltage reset and watchdog timer IC designed for microprocessors, DSPs and microcontrollers. The device features a reset output with voltage level selection. It can detect VDD supply, adjustable reset integrated circuit (IC) threshold or VDDA/2 reference threshold using monitoring circuit. The programmable watchdog timer is operated with a single external resistor which sets the timeout period and a special feature of the S-1003CB29I-I6T1U PMIC - Supervisor is its adjustable reset delay time, allowing enough time for the power supply to rise. The device also features an open drain reset output (active low) and power fail / enable input.

The S-1003CB29I-I6T1U has many application fields, but it is commonly used for system protection, protection against voltage glitches and power failures, and microprocessor/DSP watchdog timer. It is also used in a wide variety of applications such as automotive/supply trains, robotics, avionics, consumer electronics, and industrial automation. Due to its small size and wide application field, the S-1003CB29I-I6T1U is considered as one of the most versatile PMIC - Supervisors available.

The working principle of the S-1003CB29I-I6T1U is based on the use of two threshold comparators connected to its VDD input, allowing the device to switch its reset output off or on depending on the VDD voltage. The first level of the voltage being monitored is set according to the external resistors connected to the device’s RST input, while the second level is determined by the VDDA/2 reference voltage. The first comparator is responsible for monitoring the voltage on the VDD pin, while the second one is responsible for the voltage on the RST pin. Once the voltage on the RST pin rises above the VDDA/2 reference voltage, the second comparator switches its reset output low and the device starts the reset process.

The S-1003CB29I-I6T1U also features a watchdog timer that is used for system monitoring. The watchdog timer can be programmed to generate a reset pulse to the system at predetermined intervals. The timeout period of the watchdog timer can be adjusted by connecting an external resistor to the device’s WDT pin. When the watchdog timer reaches its timeout period, the reset output is generated, instructing the system to restart itself.

In addition, the S-1003CB29I-I6T1U also features an open drain reset output (active low) and power fail / enable input. The reset output is typically used to reset the microcontroller or DSP after a powerfail, while the powerfail / enable input instructs the device to start the reset process when the powerfail occurs. The device also features an adjustable reset delay time, allowing enough time for the power supply to rise.

Overall, the S-1003CB29I-I6T1U PMIC - Supervisor is an efficient, reliable and versatile device that is used in a wide variety of applications. It offers system protection, protection against voltage glitches and power failures, and a microprocessor/DSP watchdog timer to monitor the system. It features adjustable reset threshold, adjustable reset delay time, open drain reset output and powerfail/enable input. With its small size and wide application field, the S-1003CB29I-I6T1U is considered as one of the most versatile PMIC - Supervisors available.

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