LP8862Q1EVM Development Boards, Kits, Programmers

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As a component of the Texas Instruments power portfolio, the LP8862Q1EVM evaluation board is a highly versatile, comprehensive platform for developing, validating, and testing LED lighting applications. It provides an easy way for engineers to leverage their skills and develop a customized board suited for a wide range of output configurations. The LP8862Q1EVM evaluation board is based on the LP8862Q1 integrated circuit, which is a high-efficiency, digital, quad-channel constant-current LED driver IC designed specifically for low-power LED lighting applications. The IC offers a wide input voltage range, adjustable switching frequency and slew rate, and analog dimming functionality. By utilizing the LP8862Q1EVM evaluation board, developers can quickly and accurately characterize the performance of the LP8862Q1, validating its features and settings, as well as optimizing the overall system performance.

The LP8862Q1EVM board enables designers to easily power up to 12 LEDs and configure each string independently. A high-side driver MOSFET, ON/OFF switch, and user-programmable power-up configuration are included for each channel. Each board includes a TMU140 GUI, which allows the user to set up and control settings such as the output voltage, string current, input and output voltages, dimming and switching frequency, among other parameters. The versatile design of the LP8862Q1EVM permits multiple output strings to be connected in series, parallel, or in both configurations simultaneously.

The heart of the system is the LP8862Q1 LED driver, which includes an internal boost-converter, feedback loop, and four separate constant-current output strings. The boost-converter takes the input voltage and adjusts its level prior to feeding the four LED driver strings. Each channel features a pulse-width modulation (PWM) input, allowing for precise dimming over a wide range, while the boost current and frequency can be set from within the GUI. The LP8862Q1EVM also incorporates a real-time operating system (RTOS) for controlling the overall system, along with an embedded debug device for registering parameters and monitoring the system performance.

The LP8862Q1EVM board also offers users a variety of diagnostic features, such as open circuit and short circuit protection, thermal shutdown, and cycle-by-cycle current peak detection. The board is designed to operate in harsh environments, making it suitable for industrial and outdoor applications. An additional space, located on the left-hand side of the board, is available for additional sensors or components designed to complement the LED system.

In conclusion, the LP8862Q1EVM evaluation board provides a cost-effective, easy-to-use solution for LED lighting applications. It offers a wide range of features, such as adjustable output and input voltages, dimming and switching frequency, and adjustable boost current. The board includes a pre-programmed RTOS, a TMU140 GUI, and an embedded debug device, as well as open circuit, short circuit, and thermal protection mechanisms. The LP8862Q1EVM is also highly suitable for harsh environments and can be used in both industrial and outdoor applications. The board can be used to develop, validate, and test LED lighting applications, optimizing system performance in the process.

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