Power Switches (results: 267)

Power Switches

A power switch – in terms of integrated circuits – is an advanced component that goes beyond the function of a simple current switch. It forms the foundation for safe and efficient power distribution to individual modules. This category includes basic power distribution circuits that allow digital control over power flow, minimize energy losses, and protect circuits from damage.

What are power switches and what are they used for?

Power distribution circuits in this category are monolithic components integrating a power transistor with advanced control and diagnostic logic. Their main task is to ensure that power is delivered to the load in a controlled and safe manner. So what is a power switch? It is an advanced integrated circuit designed for electronically, digitally controlled switching on and off of power to a connected load. It functions as an intelligent semiconductor relay with minimal on-resistance, ensuring full energy efficiency and reliability of the system.

How do power switches work?

The operation of a power switch is based on the principle of a digitally controlled power transistor. Usually, a MOSFET with very low on-resistance is used as the switching element. The internal logic of the circuit controls the gate of this transistor, closing or opening the power circuit. The main operating mechanisms of a power switch are:

• Digital control – switching the current on or off is done via a simple logic signal (e.g., 0V or 5V) from a microcontroller.
• Soft-start – to minimize inrush current, the circuit gradually activates the load over a controlled time period.
• Current monitoring – built-in IC overcurrent protections continuously measure the output current. If the current exceeds the set limit, the circuit operates in current-limiting mode or shuts down immediately, protecting the system.

By integrating these functions, the power switch is not only a switch but also an active component managing the safety and stability of power delivery.

What to consider when choosing the right power switch?

When choosing a power switch from Micros, you should primarily consider:

• Maximum voltage and operating current – ensure that the chosen component provides sufficient safety margin for peak currents in your application.
• On-resistance – the lower this resistance, the lower the power losses and heat generation in the circuit.
• Response time to faults – check how quickly the circuit can react to a short-circuit. The response time is mainly important for circuit protection.
• Package and thermal parameters – choose a component with a package that provides proper heat dissipation under maximum load conditions.

Power distribution ICs offered by Micros have verified technical specifications, high reliability, precision operation, and minimal losses. They are an ideal choice for professionals. If you have trouble selecting the right component, contact us at bok // micros.com.pl.