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VIPER22ADIP Information
VIPER22ADIP by STMicroelectronics is a Switching Regulator or Controller.
Switching Regulator or Controllers are under the broader part category of Power Circuits.
A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.
US Tariff Estimator: VIPER22ADIP by STMicroelectronics
Calculations from this tool are estimations only for imports into the United States. Please refer to the distributor or manufacturer and reference official US government sources and authorities to verify any final purchase costs.
This table gives cross-reference parts and alternative options found for VIPER22ADIP. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of VIPER22ADIP, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.
STMicroelectronics recommends a 4-layer PCB with a solid ground plane, and a separate layer for the high-voltage rail. The input and output capacitors should be placed close to the IC, and the layout should minimize parasitic inductance and capacitance.
To ensure reliable start-up, ensure that the input voltage rises slowly (dv/dt < 50 V/ms) and the input capacitor is sufficiently large (>1uF) to filter out voltage spikes. Also, add a soft-start circuit to limit the inrush current.
The maximum allowed voltage on the VCC pin is 15V, but it's recommended to keep it below 12V to ensure reliable operation and minimize power consumption.
Use a voltage supervisor or a dedicated overvoltage protection IC to detect and respond to overvoltage conditions. For overcurrent protection, add a current sense resistor and a comparator to detect excessive current, and use a latch or a reset circuit to shut down the device.
Use a heat sink with a thermal resistance of <10°C/W, and ensure good airflow around the device. For high-power applications, consider using a thermally-enhanced package or a heat pipe.
