LM3552SDEV

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The LM3552SDEV Evaluation Board from Texas Instruments is an 8-pin LED driver with integrated Feedback Control PWM dimming. It was designed to provide a platform for evaluation of the features and performance of the related LM3552 LED driver device, and can be used to drive and control LEDs in a variety of general lighting applications such as exterior lighting and automotive lighting.

The LM3552SDEV is capable of driving up to 4 LEDs connected in series using a 10 to 42V DC supply. This makes it ideal for applications with wide input voltage ranges like industrial, automotive and outdoor lighting. The device includes a Built-in Block Converter feedback control PWM dimming and pulse-width-modulation control that allows designers to control LEDs with a low-voltage PWM signal from an external microcontroller.

The LM3552SDEV has two pins available for input. These pins are labeled “ C ” for control and “ R ” for reference. The C pin is used to select the output frequency of the built-in oscillator, while the R pin is used to set the LED current level via a fixed resistor. The LM3552SDEV contains integrated protection features that help protect against thermal runaway, ESD and current overshoot, allowing it to function reliably in harsh and highly variable environments.

The LM3552SDEV also has an integrated low-power standby mode that can be activated when no LED is present or when the input voltage drops below a certain level. This feature helps reduce power consumption and improves the overall efficiency of the system. In addition, the device has an open-drain logic output that can be used to provide a low voltage control signal to a microcontroller that can be used to manage its dimming profile.

Overall, the LM3552SDEV Evaluation Board from Texas Instruments is an excellent device for evaluating LED drivers and controlling power LED applications. Its integrated protection and PWM dimming features make it ideal for a variety of applications, including exterior lighting and automotive lighting. Furthermore, its low power standby mode helps to ensure efficient and reliable operation in even the most difficult environments.

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