LM3423BS2LYEV/NOPB

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The LM3423BS2LYEV/NOPB is an integrated circuit designed for acting as a regulated linear current source, typically used in LED driving applications. The circuit is designed to be used as a low-side current source, providing a stable current regardless of voltage changes on the supply side (up to a certain maximum voltage). The circuit has a built-in adjustable current reference, as well as a shutdown pin for turning the LED off if necessary.The LM3423BS2LYEV/NOPB is a dual channel circuit, meaning it can drive two LED’s from the same PCB. The regulation is high accuracy, and the internal oscillator frequency is designed with respect to the external components. The regulation ranges from 15mA to 75mA with a current accuracy of 1% of the set max current. The thermal shutdown circuit is designed so the maximum current is usually limited to 65mA.The working principle of the LM3423BS2LYEV/NOPB circuit is relatively simple. The circuit monitors the voltage on the output terminal and compares it to the reference voltage on the internal reference pin. When these voltages don\'t match anymore, a current is injected from or absorbed from the sensed voltage using an \'active\' or \'passive\' element. In the case of the LM3423BS2LYEV/NOPB the \'active\' element is an internal bipolar transistor which is used to adjust the voltage on the low-side output until it matches the reference voltage. The total amount of current that is allowed to flow through the LED is controlled by the reference voltage, thus providing a stable current.When it comes to the application field of the LM3423BS2LYEV/NOPB, the most common application would be LED driving. The circuit can be used as a low-side current source, providing the regulated and stabilized current even under varying voltage conditions. The circuit is very reliable and has a high accuracy due to the internal adjustable current reference, making it ideal for driving LED’s. The LM3423BS2LYEV/NOPB can also be used as a backlighting driver for LED tape, LED panels and LED arrays. The low-side current source works well for providing stable current, as well as providing better thermal and optical management of the LEDS. Since the source current can be adjusted and stabilized, it is possible to reduce the amount of power being dissipated by the LED and improve the visual quality of the display.The LM3423BS2LYEV/NOPB is a very reliable and efficient circuit for LED driving applications and can be used in a wide range of applications. It is easy to use, and its high-accuracy regulation makes it ideal for applications where the current needs to be very stable. The circuit is highly reliable, and its thermal shutdown circuit ensures that the maximum current is limited to 65mA. This makes it a great choice for any LED application, be it tape, panels, or arrays.

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