MCP1320T-29FE/OTVAO

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Power managment ICs (PMICs), or power supervisors, play a critical role in modern electronic systems, providing the necessary voltage and current levels to ensure reliable operation of various components and other electronic components. PMICs such as the MCP1320T-29FE/OTVAO offer an integrated solution for power management and circuit protection, with features such as undervoltage protection, overvoltage protection, thermal protection and more. In this article, we will take a closer look at the MCP1320T-29FE/OTVAO and its application field, as well as its working principle.

Application Field and General Specifications

The MCP1320T-29FE/OTVAO is a surface mount supervisor that provides power-on reset (POR) and power fail (PFI) detection. It is designed to control a single VOUT power rail and to reset the MCU when VOUT falls below the undervoltage (UV) threshold or rises above the overvoltage (OV) threshold. The device offers accurate UV/OV monitor thresholds (2.0V +3/-3%) and an adjustable delay time, allowing it to be optimized for different applications. The device is available in four temperature grades (commercial, automotive, industrial, and extended) and is offered in four different package sizes (TSSOP, MSOP, TQFN and SOT-23).

The MCP1320T-29FE/OTVAO is ideal for many types of applications, including automotive, industrial, consumer and medical. It can be used to provide reset and protection for high voltage systems, as well as low voltage systems. The device is also well-suited for battery-operated equipment, as it offers a low quiescent current of just 4 µA. Other features include wide input voltage range (2.5V to 16V), wide supply voltage range (1.8V to 5.5V) and disable control logic.

Working Principle

The MCP1320T-29FE/OTVAO uses an internal voltage monitor to detect when the supply voltage to the system (VOUT) falls below the undervoltage (UV) threshold or rises above the overvoltage (OV) threshold. When this happens, the device will initiate a reset signal which will put the system into reset and hold it there until the voltage returns to an acceptable level. The delay time of the reset signal can be adjusted by setting the PFI and POR delay resistor values. This allows for more precise control of the reset timing and prevents the device from resetting too quickly.

In addition to reset and protection features, the MCP1320T-29FE/OTVAO also includes a disable control logic feature. This feature allows the device to be disabled by driving the DIS pin low during periods of low current consumption. This reduces the device’s quiescent current from 4 µA to 0.45 µA.

Conclusion

The MCP1320T-29FE/OTVAO is a feature-rich PMIC that provides protection and reset features for a wide range of applications. It is designed to help ensure reliable operation of the system by monitoring VOUT and detecting UV and OV conditions and resetting the system when these conditions occur. The device also offers an adjustable delay time and disable control logic, further enhancing its functionality and performance. Overall, the MCP1320T-29FE/OTVAO is an ideal solution for many power management and protection applications.

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