LM3502ITLX-44/NOPB

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The LM3502ITLX-44/NOPB is a monolithic switching regulator for high efficiency, step-up white LED driver applications. The device integrates a 0.5A peak current switch, 24V high voltage start-up, variable frequency, and internal soft start. The LM3502 provides a constant current output with guaranteed limits across a range of input voltages from 2.5V to 5.5V and is adjustable from 10mA to 500mA for up to 16 LEDs in series. The device has a variable frequency range of 300kHz to 1.2MHz, allowing the output frequency to be optimized for the application to achieve high efficiency and to minimize EMI.

The LM3502 also contains an LED fault protection feature and open LED detection circuitry. The IC monitors each LED string, providing an LED open detection and shutdown if any string is outside of its regulated current setting by more than 10%. The device also provides Thermal Shutdown protection with a low current consumption in shutdown mode. This driver accepts wide input voltage ranges and contains a high voltage start-up regulator, allowing it to be applied to wide range of input sources.

The LM3502 can be used in a wide range of lighting applications. It can support up to 16 LEDs and provides high efficiency and programmable output current with a wide input voltage range. The LM3502 also features a low current consumption in shutdown mode, and integrated fault protection features, such as LED open detection and thermal shutdown protection. All of these features make the LM3502ITLX-44/NOPB an ideal solution for high efficiency applications such as automotive, industrial, and portable lighting.

The LM3502ITLX-44/NOPB works on the principle of regulating the voltage drop between the output and the input to maintain a desired output current. The LM3502 not only regulates the output current, but it also monitors the input and output voltages, and the current through the LEDs. This allows the device to detect and respond to fault conditions and adjust the output current accordingly.

The LM3502ITLX-44/NOPB has a wide operating temperature range of -40°C to +125°C, making it suitable for a wide range of applications. In addition, the device is RoHS compliant and meets the requirements of UL and IEC safety standards. The device is also designed to be highly reliable, making it suitable for long-term use.

The LM3502ITLX-44/NOPB is a versatile, high-efficiency LED driver for a variety of lighting applications. It provides excellent power efficiency, programmable output current, fault detection, and protection features making it an ideal choice for a wide range of applications. The device is also highly reliable and RoHS compliant, making it a safe, efficient, and reliable choice for PMIC - LED Drivers.

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