VIPER50ASP

PMIC (power management integrated circuits) are a key element of any electronics device, allowing manufacturers to integrate more levels of power management into a single chip to reduce size, complexity, and cost. The Viper50 ASP is a member of the Viper family of PMICs and AC-DC converters. It is a highly integrated, low-power monolithic integrated AC-DC (alternating current-direct current) converter with power line monitoring and protection features.

The Viper50 ASP is a constant frequency, current mode, bridge-only power supply intended for non-isolated AC-DC converter applications from 85 VAC to 265 VAC. It provides excellent power factor correction and line regulation performance up to amounts of 500 W with minimal added components. The device is also designed so it can be used on multiple line sources such as a range of line powers or multiple power lines.

The Viper50 ASP is especially ideal for telecom applications because of its integrated line monitoring and protection features. The Power Factor Correction (PFC) stage incorporates a voltage hysteresis that allows line regulation accuracy of ±3% of maximum output power with input line power ranging from 85 VAC to 265 VAC and from 80 Hz to 300 Hz. In addition, the device includes integrated over-voltage and under-voltage protection (through an external resistor voltage divider) and short-circuit protection, as well as a periodical line voltage boost capability.

The Viper50 ASP works by taking in an AC input voltage and then converting it to a DC voltage. This process begins in the power factor correction stage, where the AC input voltage is rectified, followed by a boost stage and a DC-DC transfer stage. The Power Factor Control (PFC) stage has a voltage hysteresis, which ensures the accuracy of the line regulation accuracy within 3% of maximum output power. This is then followed by a DC-DC transfer stage, which allows for a wide output voltage range and current. The Viper50 ASP also includes other features such as over voltage, under voltage, and short circuit protection.

In terms of its application field, the Viper50 ASP is well suited for building power supplies such as LED lighting, LED displays, LCD TVs, set-top boxes, DTVs, active audio systems, and motor control applications. It is also suitable for industrial, consumer, and office appliance applications, as well as telecom applications.

To conclude, the Viper50 ASP is a highly integrated, ultra low-power PMIC with integrated power factor correction, line regulation performance up to 500 W, and integrated line monitoring and protection features. It is especially suited for non-isolated AC-DC converter applications and is ideal for telecom applications. It can be used in a variety of industrial, consumer, and office appliance applications, as well as telecom applications.