AP3608EMTR-G1

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The PMIC-LED drivers market has rapidly evolved over time and with the introduction of the AP3608EMTR-G1 it\'s no surprise that this market is still expanding. The AP3608EMTR-G1 is a switch mode driver with integrated short-circuit, thermal and over-voltage protection. It is particularly designed to drive load current up to 1.2 A peak and to operate at a voltage range of 6 to 36 V. This driver is capable of supporting up to 4-channel non-isolated, constant output current. It has also been designed with a DIP switch for setting the output current levels to different values.

In terms of applications, the AP3608EMTR-G1 is used for general switches, LED lighting, Indoor/outdoor LED display, and portable tablets, laptops and other applications requiring medium current. The performance and features of this driver make it an attractive option for these applications.

The working principle of the AP3608EMTR-G1 is based on a synchronous rectification concept, which consists of high-efficiency switch mode drivers that employ synchronous rectifiers to convert the power from DC to AC. This process is also known as "four-quadrant conversion". The input voltage is first stepped down by a low-dropout (LDO) regulator which created a low-voltage supply used by the controller. The driver then draws a current through the inductor, senses the voltage across the inductor and adjusts the duty cycle accordingly. The duty cycle adjustment causes the output voltage to vary, as the current is then turned off at regular intervals during the cycle. The driver then rectifies the AC voltage via a pair of synchronous rectifiers and outputs the desired DC voltage.

The AP3608EMTR-G1 has a high precision current sense comparator that senses the load current and adjusts it accordingly to ensure the output current is constantly stable. It has a soft-start control that eliminates inrush current problems with the output transistors, reducing the chances of malfunctioning. Furthermore, the driver is designed to be able to handle a wide range of EMI disturbances. It features an over-temperature protection circuit that shuts down the output and a built-in audible alarm that alerts the user when an over-temperature state occurs.

To summarize, the AP3608EMTR-G1 is an efficient and reliable switch mode driver with integrated short-circuit, thermal and over-voltage protection. It is intended for general switches, LED lighting, Indoor/outdoor LED display, and portable tablets, laptops and other applications requiring medium current. It is based on a synchronous rectification concept, employs a high precision current sense comparator, and features a soft-start control, over-temperature protection, and built-in audible alarm. Overall, the AP3608EMTR-G1 is an excellent driver that provides optimal performance and reliability in a wide range of applications.

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