TPS3820-33DBVT

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PMIC (Power Management Integrated Circuits) are used to manage the power in electronic circuits. PMICs are used in a variety of applications, from simple monitoring functions to complex power management. PMICs typically come in two main types: supervisors and regulators. Supervisors monitor the voltage in the system and provide an output when the voltage reaches a certain level. Regulators are used to maintain the desired levels of power in the system.

The TPS3820-33DBVT is a voltage supervisor from Texas Instruments. It is used to supervise the voltage levels in a system and provide a digital output when the input voltage rises above or falls below the preset trip point. It is capable of monitoring input voltages from 1.2V to 3.6V and can provide an output trip level of 1.200V, 1.280V, 1.400V, 1.600V, 1.800V, 2.000V, 2.250V, 2.400V and 3.300V.

The TPS3820-33DBVT is designed to monitor one or more supply voltages, providing a digital active low output signal. This signal can then be used to initiate a shutdown or reset event. When the input voltage falls below or rises above the preset trip voltage, the output signal is activated. The TPS3820-33DBVT also has an adjustable delay and a hysteresis pin which can be programmed to filter out rapid voltage transients.

The TPS3820-33DBVT can be used in many applications such as microprocessors, embedded controllers, ASICs, digital logic, portable devices, and low power systems. Its features include low quiescent current, low input voltage, high accuracy, and wide dynamic range. It also provides a wide operating temperature range and is available in 8-pin SOIC, SOP and VSSOP packages.

The TPS3820-33DBVT is used to provide over-voltage, under-voltage and power-on reset protection to a system. It monitors the voltage level at the power pin and provides an active-low output signal when the voltage rises above or falls below a pre-programmed trip point. This feature makes the TPS3820-33DBVT a useful device for providing power reset protection in various applications. It can also be used to monitor multiple supply voltages and provide a single output signal.

The TPS3820-33DBVT works by monitoring the voltage at the power pin. When the voltage rises above or falls below the preset trip point, it will activate the output signal for a certain period of time before deactivating it and resetting itself. This will ensure that the system does not remain in a reset state by continuously being reset. The adjustable delay and hysteresis pin are useful in eliminating rapid voltage transitions from triggering a reset. The device also comes with a precision resistor divider reference so that the trip point can be accurately set.

In conclusion, the TPS3820-33DBVT is an effective supervisor IC for providing power reset protection in various applications. It is capable of monitoring one or multiple supply voltages and provides a digital active-low output signal when the voltage rises above or falls below a set trip point. The adjustable delay and hysteresis pin are useful in eliminating rapid voltage transitions. The device is highly accurate and has a wide operating temperature range.

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