TPS3780AQDBVRQ1

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Introduction

The TPS3780AQDBVRQ1 is a PMIC (Power Management Integrated Circuit) Supervisor device with a full-featured protection suite, providing safe power supply monitoring and control by means of built-in precision voltage and temperature monitors. The device monitors inputs from four supply sources, two temperatures, and two 0.8V-3.6V signal levels and offers full output control, adjustable delay features, and integrated safety functions.

Application Field

The application field of the TPS3780AQDBVRQ1 spans across a variety of applications where system management, protection and reliability are key concerns. Such applications include avionics, automotive, industrial and consumer electronics, and any other systems where precision voltage and temperature regulation is an essential factor. Specifically, the device’s features are beneficial in automotive and avionics safety critical applications, as well as industrial, consumer, and medical device designs.

Automotive and avionics systems can be improved in terms of safety and reliability by employing the TPS3780AQDBVRQ1, which offers low voltage and thermal protection with adjustable hysteresis, current limit and temperature shutdown. The integrated precision voltage and temperature monitors are designed to withstand high temperatures, making it suitable for a wide-temperature operating range up to 125 °C. The device also monitors two 0.8V-3.6V signal levels and provides programmable low voltage/thermal reset signals.

Industrial, consumer, and medical device designs can greatly benefit from the TPS3780AQDBVRQ1’s low voltage reset and power on reset capabilities, allowing for improved system reliability, redundancy and control. The devices low power consumption and ability to generate low voltage and thermal reset signals makes it suitable for battery-powered equipment, extending battery life and providing reliable power monitoring for a long working lifetime.

Working Principle

The logic blocks of the TPS3780AQDBVRQ1 device provide digital logic to generate and supply two reset outputs, VDD UV LO and VDD UV HI programmable reset signals. The device has an external supply voltage (VIN) input and four supply voltage (VIN) inputs labelled VIN A, VIN B, VIN C and VIN D. The device also has two temperature inputs labelled TEMP A and TEMP B.

The core logic of the TPS3780AQDBVRQ1 is designed to monitor the inputs and detect any voltage or temperature specific threshold that is programmed on the device. This is done using the adjustable delay features that are provided on the device, allowing users to control the delay between power-on and when reset is initiated. The device provides a number of digital circuit blocks which contain logic to provide further logic control to the reset and supply pins, depending on the type of reset signal or delayed reset that is required.

The device also provides an internal voltage regulator (VIN 0) which can be used to regulate an external supply from an input such as a battery or AC power source. The internal voltage regulator also provides an output in line with the device’s operating voltage range to be used for powering other digital blocks. The built-in precision voltage and temperature monitors are designed to detect and limit any voltage or temperature specific thresholds that can be programmed on the device, providing reliable and accurate protection of the system.

Conclusion

The TPS3780AQDBVRQ1 is a PMIC (Power Management Integrated Circuit) Supervisor device with a full-featured protection suite, providing safe power supply monitoring and control by means of built-in precision voltage and temperature monitors. The device is suitable for several application fields across a wide range of industries, such as avionics, automotive, industrial and consumer electronics, and medical devices. Its core logic is designed to monitor inputs, detect any voltage or temperature specific threshold, and provide digital logic to generate and supply two reset outputs. The built-in precision voltage and temperature monitors provide reliable and accurate protection of the system.

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