MXD1817XR29+T

PMIC - Supervisors: MXD1817XR29+T Application Field and Working Principle

MXD1817XR29+T is an integrated power management IC (PMIC) with improved system\'s power efficiency. It is a supervisor IC integrated with an overvoltage, overcurrent, and less power protection.

Application Field

This PMIC is widely used in various applications such as wireless charging, portable computing, sergestor™ energy harvesting, low-power-systems, and mobile communications. The integrated system with its power efficiency makes it suitable for any device with medium to high power requirements. It also provides very low current consumption and is best suited for power-sensitive applications.

The MXD1817XR29+T is also used for general purpose Supervision features such as system power warning, precision power monitoring, and undervoltage detection. It is also used for optimizing a system’s power efficiency and to help reduce components count.

Implementing this PMIC into a system will not only reduce the number of components needed for an efficient system but also minimize system power consumption. This makes the MXD1817XR29+T one of the most popular choices for designers when looking for PMICs with high system efficiency.

Working Principle

The MXD1817XR29+T consists of three power rails: input power, enable power, and output power rail. When the enable power is enabled, the input power rail is directed to the output power rail with certain Protected Operating Area (POA) limits. When the output voltage is determined, the output voltage is maintained within the boundaries of the Protected Operating Area.

The PMIC also features an overvoltage protection (OVP) which prevents circuit components from being damaged due to excess power. This is activated when an incoming voltage exceeds the preset Overvoltage Threshold Voltage (OTV). Once the OVP is activated, the overvoltage regulation will kick in to reduce the voltage back down to the OVT.

Another feature of the PMIC is its overcurrent protection, which is used to detect and prevent abnormal current levels, potentially preventing system failure. This protection is triggered when the load current exceeds the preset current limit, or when the system is overloaded. The overcurrent protection is programmed into the PMIC before shipping.

Finally, the PMIC contains built-in Low Power Protection (LPP) which is designed to protect the system from damage due to low power supply conditions. This protection is triggered when the system is not receiving sufficient power. When this occurs, the PMIC detects this condition and turns off power to the system to prevent damage.

Conclusion

The MXD1817XR29+T PMIC is a popular choice for designers because of the improved system power efficiency it provides. With this PMIC, systems are able to have increased performance, increased efficiency and increased reliability. Additionally, the built-in overvoltage and overcurrent protections help protect the system from potential damage from abnormally high power levels. Finally, the Low Power Protection helps protect the system from damage due to low power supply conditions.