SP6682ER-L

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SP6682ER-L is a product of Semtech Corporation, and falls under the category of PMIC (Power Management IC) - LED Drivers. This 2A step-down converter is ideal for managing medium to high power LED in applications like home lighting, outdoor lighting and signage lighting. The product is available in MSOP10 and TSSOP10 packages.

SP6682ER-L provides up to 2A output current while still maintaining the high efficiency in medium and high power LED applications. The output voltage is adjustable from 0.6V to 10V and is controlled through a voltage setting pin, which is used to set the output voltage of the converter accurately. The high brightness output of the LED is enabled due to the internal 500mΩ MOSFET, and the high efficiency is maintained due to the internal 200 mΩ MOSFET.

The SP6682ER-L features a wide operating temperature range of −40 ºC to +125 ºC and an input voltage range from 3V to 40.5V, enabling it to power most LED applications with the same efficiency. The product offers excellent EMC performance, with built-in EMI filter and high-speed shutdown for improved system compatibility in noisy environments. Additionally, the device has low shutdown current, excellent standby current and short circuit protection to protect the LED from over-current.

The working principle of SP6682ER-L is based on its oscillator, which is used for generating a ramp signal for the internal current sense amplifier. This amplifier detects the mismatch between the actual output voltage and the voltage setting pin and adjusts the driving signal of the internal 500 mΩ MOSFET accordingly. The output voltage is kept stable by using control loop, driven by the sampled error signal. As the output voltage stays constant, the preset voltage setting determines the output current of the device.

The SP6682ER-L provides many features, such as wide input voltage range, high efficiency, wide operating temperature range, EMC performance, low shutdown current, fast start-up and standby current as well as protection features. All these features make it ideal for medium to high power LED applications like home lighting, outdoor lighting, signage lighting and more.

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