TCM809JVNB713

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PMIC (Power Management Integrated Circuit) refers to the integrated circuits that are responsible for controlling power functions in electronic systems. Supervisors, which are a subcategory of PMICs, are a specialized class of integrated circuits with the primary purpose to monitor and protect integrated circuits from different types of faults or errors. Supervisory ICs are much smaller and are often found in applications where size and low power consumption is necessary, such as portable electronics. TCM809JVNB713 is a supervising chip that is specifically designed to protect integrated circuits and systems from over-voltages, under-voltages, and brownout conditions. This application note gives a general overview of the features of the TCM809JVNB713 supervisor and its main applications and working principles.

Operating Principle of TCM809JVNB713 Supervisors

The TCM809JVNB713 is used to monitor the power supply of an electronic system in order to protect against over-voltage and under-voltage conditions. It is a low-voltage supervisor that provides a wide range of operating voltages, from less than 1.3V to over 4V. The TCM809JVNB713 outputs a RESET signal when the power supply voltage dips below a threshold, known as the reset (Reset) threshold, or when power supply voltage rises above a non-reset (NR) threshold. The RESET and NR thresholds can be programmed to different levels by an onboard voltage divider and by varying the voltage on the NR pin.

The TCM809JVNB713 is also equipped with a delay function. This function provides an adjustable time delay before the RESET signal is activated or de-activated. This allows the user to set up the delay according to the power requirements of the system. The TCM809JVNB713 also features an open-drain output type, allowing the user to use an external pull-up resistor to increase the output drive capability. Moreover, the supervisor has an active low active high selectable output polarity.

Applications of TCM809JVNB713 Supervisors

The TCM809JVNB713 is primarily used as a supervisor for ICs in power supplies, especially for the protection of integrated circuit from damage due to over-voltage or under-voltage conditions. This supervisor can also be used to provide a reset signal for electronic systems in order to prevent them from operating at an incorrect voltage. Furthermore, the TCM809JVNB713 uses a programmable delay timer to ensure that the reset signal is activated or de-activated at precise times, which allows the user to set up the timing according to their application. This supervisor is also suitable for applications which require precise and stable power supply with low power consumption, such as portable electronics.

The TCM809JVNB713 supervisor is also suitable for applications that require protection against brownout conditions. Brownout conditions are caused by a decrease in the main power supply voltage during operation, which can cause damage to the circuitry of the system. The TCM809JVNB713 is equipped with a voltage monitor with a programmable threshold, allowing the supervisor to detect any change in the power supply voltage and reset the system before any damage occurs. This makes the TCM809JVNB713 an ideal supervisor for systems which are operating in environments prone to brownouts, such as industrial equipment.

Conclusion

The TCM809JVNB713 supervisor is a specialized integrated circuit that provides protection to integrated circuits and systems from over-voltage, under-voltage, and brownout conditions. This unit is suitable for applications that require precise and stable power supply with low power consumption and protection against brownouts, such as portable electronics and industrial equipment. Moreover, the TCM809JVNB713 uses a programmable delay timer and voltage monitors for precise timing and detection of sudden changes in power supply voltage, thus providing reliable protection for the ICs and systems under its supervision.

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