AP3105DKTR-G1

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PMIC - AC DC Converters, Offline Switchers

AP3105DKTR-G1 is an intermediate bus power supply chip designed for LED driving applications by Diodes Inc. It has a high integration, wide range input capability, leading-edge device support, and cost effective design. This power supply can be used in LED dimming applications with a wide range of board designs and system configurations.

Application

AP3105DKTR-G1 is suitable for large-scale LED lighting applications such as parking lights, street lights, downlights, accent lighting and linear lighting. In these applications, AP3105DKTR-G1 is used to provide high efficient power supply to the driver ICs and thus contributes to the overall system efficiency. Additionally, it can also be used in various general purpose applications, including AC/DC power adapters, standby power supply and more.

Features

The AP3105DKTR-G1 has several important features which make it ideal for LED lighting applications. These features include:

• Wide input voltage range of 6 to 48V
• Single output voltage of 12V
• Integrated MOSFET switching technology
• Programmable switching frequency up to 1MHz
• Internal carrying protection
• High efficiency up to 87%, allowing for decreased power consumption

Working Principle

The AP3105DKTR-G1 is a synchronous buck converter with an integrated MOSFET switching technology. When the voltage of the input power supply rises above the level of the reference voltage, the N-Channel MOSFET closes and the converter begins to switch. The voltage on the inductor decreases as current forms while energy is stored in the inductor.

When the voltage of the input power supply falls below the level of the reference voltage, the N-Channel MOSFET opens and the converter stops switching and the voltage on the inductor rises. As this happens, the inductor releases the stored energy into the output capacitor, thereby providing a regulated output voltage.

The AP3105DKTR-G1 also includes a programmable switching frequency which allows the user to optimize their design for different critical conditions and power settings. The converter also has an integrated carrying protection feature, which helps protect the circuit from damage in the event of a short circuit.

Conclusion

In conclusion, AP3105DKTR-G1 is an ideal choice for power supply applications in LED lighting and other general-purpose applications. It is capable of providing high efficiency power supply with low cost and wide range of board designs and configurations. With its integrated MOSFET switching technology and programmable switching frequency, it allows the user to optimize their design for different critical conditions and power settings.

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