TPS61187EVM-528

The TPS61187EVM-528 evaluation board is designed specifically to evaluate the TPS61187 LED driver. The board is a suitable tool for development, demonstration, and testing of LED lighting applications using the TPS61187 regulator. This evaluation board utilizes a dual-channel TPS61187 regulator for constant current output to provide both high and low-end current settings. This makes the TPS61187EVM-528 suitable for lighting applications ranging from general purpose lighting to high-end display and automotive applications.

The TPS61187EVM-528 board uses the TPS61187 LED driver, a DC-DC LED step-down converter with an input voltage range from 2.7 V to 5.5 V. The LED converter features an adjustable output current (typical = 40 mA) and is optimized for use in LED applications. The LED driver also has a programmable, dual-phase mode which is designed to reduce power dissipation when two separate LED strings are driven in parallel allowing for twice the LED current compared to a single-phase mode application.

The board is designed to provide two modes of operation, constant current and pulsed current. In constant current mode, the board can output a steady, continuous current over a range of 20 mA to 40 mA (depending on the selected resistor) while in pulsed current mode, the board can provide a modulated current according to a programmable duty cycle. This allows for controlling the output of the LED driver in both continuous and flash/blink applications. The board also has a programmable Soft-start/Soft-stop feature that reduces current surges during start and stop conditions, as well as a programmable current limitation feature that increases the protection of the controller and protection of the LED strings during a fault condition. The board has an onboard 3-pin header connector that allows for direct connection to external I2C control inputs.

Overall, the TPS61187EVM-528 evaluation board is a great tool for evaluating and developing applications for lighting with the TPS61187 LED driver. It allows for easy connection to external control inputs and can operate in both continuous and flash/blink modes. The board is suitable for use in general purpose lighting or high-end display and automotive applications, and provides features such as Soft-start/Soft-stop and current limitation for protection of the controller and LED strings.