TPS3837K33DBVR

PMIC, or Power Management Integrated Circuit, is an important area of modern electronics. In particular, supervisors, which are also known as voltage monitors or trip devices, are an essential component of most power management architectures. The TPS3837K33DBVR is a specific type of supervisor from Texas Instruments that is designed for a variety of critical applications. In this article, we will discuss the application field and working principle of the TPS3837K33DBVR.

The TPS3837K33DBVR is a low-power supervisor device that is designed for power supply monitoring of 1.5V to 5V systems. It monitors input voltage levels, up to 5V, and provides a reset signal upon reaching a designated trip point. The TPS3837K33DBVR is ideal for mission-critical applications that require reliable operation in the event of a power failure or over-voltage condition. It is capable of withstanding voltages up to 20V and is highly efficient, with a low typical quiescent current of 1.2mA.

The TPS3837K33DBVR is suitable for a variety of applications, including microprocessor, digital logic, and memory systems. Its low-power and high accuracy make it ideal for use in battery-powered devices, such as portable medical and security systems, as well as in applications where a loss of power must be avoided, such as automotive electronics and industrial automation. This device is offered in six-bump micro SMD packages, making it suitable for space-constrained applications.

The working principle of the TPS3837K37DBVR is simple but highly effective. It utilizes a simple bandgap reference that is calibrated to the desired trip point. An internal voltage comparator continuously compares the input voltage with the reference voltage. When the input voltage exceeds or dips below the designated trip point range, the comparator produces a reset signal and notifies the power supply.The user can adjust the trip point voltage using an external resistor. The reset output can be enabled and disabled using the GLOBAL RESET/ENABLE input (GR/EN), allowing for more flexible control over the reset logic.

In summary, the TPS3837K33DBVR is a low-power supervisor designed for power supply monitoring applications. It offers high accuracy, low power consumption, and operates from 1.5V to 5V. It is suitable for a wide range of applications, from battery-powered devices to critical industrial and automotive electronics. The device utilizes a highly effective working principle involving a bandgap reference and voltage comparator to detect and notify of any power supply irregularities.