LT3486EDHC#TRPBF

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PMIC – LED Drivers are a common tool used to regulate current and voltage and control the brightness of LEDs. The LT3486EDHC#TRPBF is a high efficiency, intra-8 LED driver designed to provide a cost-effective solution for powering LEDs. The device integrates various features to support a wide range of LED applications, from high power LED lighting products to mobile phone flash LED drivers.

Overview of the LT3486EDHC#TRPBF

The LT3486EDHC#TRPBF is a low dropout (LDO) linear regulator, designed for driving small to medium-high current LEDs. It features a wide input voltage range, adjustable current limit and a low quiescent current. It also provides a low output voltage ripple, which is ideal for automotive and mobile applications.

The LT3486EDHC#TRPBF is a highly integrated device, featuring a built-in oscillator, soft-start and adjustable current limit. It has a wide input voltage range of 4.5V to 24V and output current of up to 2A. The adjustable current limit allows users to set the desired current level depending on the application. The device also includes Thermal Shutdown and Over Voltage Protection (OVP) to protect the device in extreme conditions.

Application Field and Working Principle

The LT3486EDHC#TRPBF is designed for applications such as street lighting, automotive lighting, gaming consoles and mobile phones. Due to its wide input voltage range, adjustable current limit and low output ripple, the LT3486EDHC#TRPBF offers a cost-effective solution for driving LEDs in these applications.

The LT3486EDHC#TRPBF uses a current source topology to control the output current of the device. This topology consists of an internal current source and current-sense resistor. The internal current source monitors the current-sense resistor and regulates the output current of the device. With this topology, the output current of the device is independent of the input voltage, allowing the device to accurately regulate the LED current regardless of the input voltage.

The device also features an adjustable current limit that allows the user to set the desired current level for each device. This is done by selecting the ratio between the current sense resistor and the internal current source. Thus, with the same output current, the user can adjust the current limit to a lower or higher level according to their requirement.

The device includes Thermal Shutdown and Over Voltage Protection (OVP) to prevent the device from overheating or resistive loads. The Thermal Shutdown feature enables the device to shut down in the case of overheating, while the Over Voltage Protection feature prevents the device from excessive current draw or resistive loads.

Conclusion

The LT3486EDHC#TRPBF is a high-efficiency, intra-8 LED driver designed to provide a cost-effective solution for powering LEDs. The device is ideal for lighting applications such as street lighting, automotive lighting, gaming consoles and mobile phones. It features a wide input voltage range, adjustable current limit and a low quiescent current. With its adjustable current limit, the LT3486EDHC#TRPBF enables users to select the desired current level for each device. It also includes Thermal Shutdown and Over Voltage Protection features to protect the device from overheating and resistive loads. Overall, the LT3486EDHC#TRPBF is a great choice for driving LEDs in high power LED lighting products and mobile phone flash LED drivers.

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