TPS3839L30DQNT

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

TPS3839L30DQNT Application Field and Working Principle

The TPS3839L30DQNT is a member of Texas Instruments\' robust portfolio of precision micro-power supervisors that offer additional features needed in today\'s designs. This supervisor provides protection to reliable system power-up and -down, and manages brownout, power-on reset pulses, and voltage monitor reset signals. This product is classified as a PMIC (Power Management Integrated Circuit) Supervisor, which provides innovative solutions for power management needs, including supervisory circuits, power switches, LED drivers, LED controllers, and system power control, voltage references and linear regulators.

Application Fields for TPS3839L30DQNT

The TPS3839L30DQNT is primarily designed for reliable power-on reset and system reliability applications that require very low power consumption, low standby current, and simple integration. It is ideal for micro-processor, digital signal processor, ASIC, FPGA, and other applications requiring a reliable reset source. The TPS3839L30DQNT is available in a small VSSOP-8 package to reduce space and provide an optimum solution for portable, space-sensitive applications.

TPS3839L30DQNT Working Principle

The TPS3839L30DQNT monitors a single power supply operating within an adjustable voltage range and asserts an active-low reset output (RESET) after power is applied that serves as a starting point for the microcontroller. The reset output remains active until the power supply voltage reaches the preset threshold. The internal RESET circuitry also features a power-on reset timer for manual or automatic reset (200ms) generation, a power-on reset timer for manual or automatic reset generation, and a voltage monitor reset timer for applications with a high voltage warning. The adjustable reset threshold is programmable from 1.1V to 4.63V, and can be programmed with precision to match the needs of the application. In addition, there is an over-voltage protection and power-fail warning independent from the other reset functions.

In addition, the TPS3839L30DQNT provides a voltage monitor detect function (DET) which is a better option than using a voltage divider. This provides additional protection against sudden under-voltage conditions, ensuring that the system will not experience any performance degradation due to power interruption. The DET output is held active occur when the input voltage is lower than the voltage adjust threshold. Furthermore, the TPS3839L30DQNT has a low power standby current and it is available in small package options, hence making it a great choice for wearables, medical equipment, and other space-sensitive applications.

Conclusion

The TPS3839L30DQNT from Texas Instruments is a precision micro-power supervisor designed for reliable power-on reset and system reliability applications. It offers features needed in today’s designs such as a power-on reset timer for manual or automatic reset, voltage monitor reset timer for applications with high voltage warning, over-voltage protection, and voltage monitor detect functions. This integrated circuit is ideal for space-sensitive applications as it has a low power consumption and is available in small packages.

The specific data is subject to PDF, and the above content is for reference