TPS3831L30DQNR Integrated Circuits (ICs)

PMIC is a power management integrated circuit, commonly used in modern electronic devices, providing vital electrical power in the correct format to meet the needs of the device. The TPS3831L30DQNR is a high-performance supervisor device that falls into this category. It is a compact and cost-effective solution for protecting power system designs.

The TPS3831L30DQNR is a member of the TPS380 power supervisor family, providing overvoltage and brownout protection to a wide variety of microcontroller-based designs. It offers superior protection with an adjustable voltage tolerance, adjustable reset time delay and a power-on reset output. It also features system diagnostics in the form of status output and active-low reset signaling.

The device is suitable for a wide range of applications including industrial, automotive, consumer and portable electronics. It is designed to be used with voltage regulators and battery chargers, providing integrated protection against overvoltages and brownouts. The device also has internal overvoltage protection circuitry and the capability to monitor and control microprocessors during power-up and power-down operations.

The internal circuitry of the device can be divided into two main areas, the voltage supervisor and the output logic. The voltage supervisor is a comparator that is set to a predetermined voltage level. When the power source reaches this level, it sends a signal to the reset logic, which in turn produces the appropriate reset output. The reset time delay can be set with an external resistor, with the default setting being 150ms.

The output logic of the TPS3831L30DQNR generates a WDI and an active-low reset signal. The WDI can be used to monitor the voltage of the power source, while the active-low reset is used to indicate when a reset event has occurred. Both signals can be used to provide diagnostic information to the system.

In addition to the voltage supervisor and output logic, the TPS3831L30DQNR also has a low-power-mode control block to optimize the power usage of the device. The low-power-mode control block monitors the voltage of the power source and activates the device when the voltage exceeds the specified level. It then turns off the device to save power.

The TPS3831L30DQNR is a highly versatile supervisor device for a variety of applications. It is designed to provide superior voltage protection and system diagnostics for microcontroller-based designs, with the added benefits of low power consumption and adjustable reset time delays. Its high performance and cost effectiveness make it an ideal choice for a range of applications including industrial, automotive, consumer, and portable electronics.