PQ1AS10C0K

The PQ1AS10C0K is a step-up DC/DC converter IC designed to drive high power LEDs in automotive head and low light level applications. It features high integration, high efficiency, low cost, and small size. The device integrates a synchronous buck controller, a high current sense amplifier, a high voltage start/stop control and a high efficiency power switch. Its operating power range is from 4V to 16V and the output current is adjustable between 1A and 10A, making it suitable for a wide range of LED driving conditions.

The working principle of the PQ1AS10C0K is quite simple. When the input voltage and the current sense voltage reach the specified level, the background voltage is generated and charges the external capacitor until the voltage reaches the self-start threshold. The internal switch is turned on and the output voltage starts to rise. When it reaches the maximum output voltage, the internal switch is turned off and the voltage decreases. When the voltage returns to the start voltage, the background voltage is regenerated and the cycle repeats. This cycle generates a pulsed output voltage from the internal switch. The output voltage of the PQ1AS10C0K can be regulated by controlling the peak current provided to the LED. The output current is controlled by the internal current sense circuit, which senses the voltage across a sense resistor connected to the LED and adjusts the peak current accordingly.

The PQ1AS10C0K is well suited for LED driving applications in cars, as it offers high efficiency and small size. It is also suitable for low power LED lighting systems, especially in outdoor applications, where long range and high efficiency are important factors. Its current sensing feedback algorithm allows it to respond quickly to changes in driving conditions. Moreover, the IC includes low current standby mode and overtemperature protection, ensuring that the output voltage remains stable and the device is protected from over current conditions. Its low cost makes it ideal for applications where cost is critical. In addition to its high-efficiency and low thermal dissipation, the PQ1AS10C0K also offers protection from over voltage, under voltage, and short-circuit conditions. With its wide operating power range and adjustable current settings it is suitable for a variety of LED lighting applications.

In summary, the PQ1AS10C0K is a high efficiency, cost effective, and easy to use DC/DC converter IC designed for high power LED driving applications. With its wide operating power range and adjustable current settings, it is suitable for a variety of LED lighting applications. Its current sensing feedback algorithm ensures quick response to changes in driving conditions and its low power standby mode and overtemperature protection features make it a reliable solution for LED lighting systems.