TPS3808G01DRVT

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PMIC – Supervisors are power management integrated circuit (PMIC) used in various electronic devices, particularly those using switch-mode power supplies. The TPS3808G01 DRVT is one example of a PMIC – Supervisor, which is used to monitor the voltage and current of a system through its built-in comparators and voltage reference. The TPS3808G01DRVT is optimized for systems that require a 200mA maximum load up to 8.0V, but can support up to 400mA.

Application Field of TPS3808G01DRVT

The TPS3808G01DRVT is a highly integrated dual-channel voltage supervisor with low power consumption, making it ideal for energy-sensitive applications. It can be used as a voltage supervisor in a variety of high-end applications, such as medical equipment, automotive electronics, consumer electronics, industrial equipment, and telecommunications systems. This supervisor can be also used in power-management architectures, such as SMPS and low voltage power sequencing, for improved loads protection.

Working Principle

The TPS3808G01DRVT works by monitoring the voltage, current, and other components of the system it is connected to, and then sending an interrupt signal when the system reaches certain conditions. The supervisor uses its analog-to-digital converter (ADC) to measure and convert the real-time voltage and current of the system into digital output signals, which are then compared against preset values. The supervisor can be programmed to detect a variety of conditions, such as undervoltage, overvoltage, and even overcurrent. Once the conditions have been met, the supervisor will then send an interrupt signal and trigger one of two protection settings offered: instant shut down, or delayed shut down. In the case of the former, the system will be shut down immediately upon the interrupt signal, while in the case of the latter, the system will be shut down after a predetermined delay.

In addition to its interrupt signal, the TPS3808G01DRVT also offers two comparator outputs to control other system peripherals, such as electrostatic discharge (ESD) protection circuits, system on/off sequencing, LED relief circuits, and overvoltage protection. The comparators can hold the outputs low until the condition is met, and then the output will transition to high. This can be used to control other components in the system such as resetting the system, turning on a relay, or activating a substitute voltage source.

The TPS3808G01DRVT voltage supervisor also offers a wide range of options in terms of power-on/power-off sequencing and overvoltage protection. In power-on/off sequencing, the supervisor can detect the power transition of the system, allowing the system to be put into a safe state before it is powered off, or to enable its functions only after all the power rails are stable. Additionally, its overvoltage protection circuit can detect an overvoltage condition and prevent potential damage to the system by preventing the voltage from exceeding a certain level.

The TPS3808G01DRVT supervisor is a highly integrated and complex PMIC – Supervisor that offers a wide range of features and protection for a variety of system architectures. Its compact size and low power consumption make it ideal for energy-sensitive applications, while its robust protection circuits provide added confidence and safety for the system. Its wide range of features, such as its interrupt signal, comparator outputs, and power-on/off sequencing, make it an ideal choice for many system architectures.

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