VIPER100A(022Y)

The VIPER100A (022Y) is a power management integrated circuit (PMIC) developed by STMicroelectronics. It is an offline switcher, meaning it is able to control large loads independently of the system’s power source. It is specifically designed for applications requiring a reliable high power AC/DC conversion with very low power consumption. The VIPER100A is a highly efficient, cost-effective solution in terms of both power generation and EMI compliance.

The VIPER100A has an operating voltage range of 4.6V to 36V and a maximum rated output power of 100W. It employs a robust high-frequency switching technology to achieve high efficiency levels and has a wide range of switching frequencies available to further accommodate different application requirements. In addition, it offers a variety of protection features to guard against faults, such as an over-temperature protection, overload protection, and a soft-start feature.

The VIPER100A offline switcher is typically used in industrial, automotive, and consumer applications requiring a reliable high power AC/DC conversion with low power consumption. Examples include smart lighting and heating systems, electric vehicle chargers, agricultural systems, and industrial machine management. In addition to its industrial and automotive applications, it has also found its way into consumer electronics, where it is used in laptop and house appliance chargers. It is especially well suited for low power applications, such as battery-powered systems, due to its superior power efficiency.

The working principle of the VIPER100A offline switcher is based on the construction of a low-frequency buck states. The VIPER100A uses a voltage-mode control technique to regulate the output voltage, which reduces the output power filter size and routing complexity. In addition, the VIPER100A incorporates several protection features to guard against fault conditions, such as an over-temperature protection and an overload protection. Finally, the VIPER100A also has a low on-resistance to increase efficiency and reduce power losses in operation.