TPS389030DSER

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There is a multitude of system requirements for power management and associated circuitry. Power management integrated circuits (PMICs) are a popular choice of modern electronics manufacturers. Texas Instruments\' TPS389030DSER is an example of a PMIC, such as a Supervisors, making it a perfect choice in a wide range of applications. This article will cover the TPS389030DSER’s application field and working principle.

Application Field

The TPS389030DSER is an overvoltage/undervoltage supervisor designed for use with low-power systems. It is pin-compatible with the popular TPS3893 family of Supervisors, making it an ideal replacement for existing designs. This device is designed for high-density applications, both in terms of the number of pins and the small size of the device. It is suitable for use in portable battery-powered applications, and it has an adjustable reset threshold and reset time.

Operating Parameters

The TPS389030DSER offers a wide range of operating parameters:

• Input Voltage Range – 2.8V to 6V
• Supply Current – 20A
• Operating Temperature Range – -40°C to 85°C
• Reset Time – 5ms – 80ms
• Reset Threshold – 1.7V to 3.6V
• Output Voltage Accuracy – +/- 5%

Features and Benefits

The TPS389030DSER offers several features and benefits that make it an attractive choice for designers:

• Low Quiescent Current – The device consumes very little power in normal operation, typically only 20A.
• Ease of Use – The device requires no external components for typical voltage monitoring applications.
• High Accuracy – The reset threshold accuracy is maintained to within +/- 5%.
• Low Package Profile – The small size of the device makes it ideal for use in portable applications.
• Wide Operating Voltage Range – The device is designed to operate over a wide range of operating voltages, allowing it to be used in a variety of applications.

Working Principle

The TPS389030DSER is a voltage supervisor that monitors a system’s supply voltage and issues a reset signal when it falls outside the set threshold. It is designed to ensure that a system is not powered up inappropriately by providing a reset when the supply voltage suddenly drops or increases too rapidly.

The device works by monitoring the supply voltage, and when the voltage falls outside the set threshold, the device will issue an active low reset output. This reset will then remain active until the supply voltage has risen above the threshold. This allows the device to be used to protect against sudden power surges or drops.

The device is designed with low quiescent current, ensuring that it consumes minimal power. This makes it an attractive option for battery-powered applications. In addition, the device is extremely simple to use, as it requires no external components for typical voltage monitoring applications.

Conclusion

The TPS389030DSER is an ideal solution for low-power systems that require overvoltage/undervoltage protection. Its wide operating range, small size, and low quiescent current make it an attractive choice for portable applications. In addition, its reset threshold accuracy and reset time parameters make it suitable for use in a wide range of applications.

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