TPS65287EVM

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TPS65287EVM is a complete design, evaluation, and debug platform for Texas Instruments TPS65287 5-A, 10-MHz Step-Down Converter. This board contains the power stage solution for a 10 MHz, 3.3 V, 5 A load. This enables users to evaluate the features and performance of the TPS65287. The board also includes additional features such as external control, thermal monitoring, and additional programming and evaluation headers.

The operation of TPS65287EVM depends on the principle that the output voltage is much lower than the input voltage. This is achieved by using the pulse width modulation (PWM) technique to control the voltage output. The input voltage is switched on/off by the Pulse width modulation technique for a specified time. The input voltage is applied to the internal p-channel MOSFET switch, and when this switch is enabled, the input voltage is applied to the inductor. This induces a current in the inductor which is equal to the input current of the IC. This current will be stored in the inductor and the output voltage is obtained after a few switching periods.

The TPS65287EVM application field includes both consumer and industrial applications. This board is ideal for powering FPGA, DSP, ASIC, or general LED lighting, displays, and other portable applications. It is capable of providing up to 5 A continuous output current and features capability to program the output voltage as low as 0.4 V with a 10 mV step size. This board features PMBus and I2C control, enabling designers to program the load with desired features and quickly optimize design performance.

The TPS65287EVM offers integrated protection features which include output over voltage protection (OVP) and open circuit protection (OCP). The OVP prevents the output voltage from exceeding its programmed voltage by activating the PWM clamp. The OCP monitors the output current and when the current flows above the programmed current limit, the PWM clamp will be triggered. The safety features protect the converter and the load from damage or failure due to current overload or short circuit.

The board also features an adjustable thermal protection (TPROT) which prevents the board from damage due to excessive temperature. This feature is very useful in applications where the board experiences high temperature such as industrial applications and where no cooling solutions are available. The TUser feature allows the user to adjust the temperature at which the thermal protection will be triggered.

TPS65287EVM has a wide application field and is suitable for a variety of DC/DC and AC/DC (off-line) SMPS applications. This board supports quick evaluation as well as debug and can help to optimize the design performance for many electronic applications. The board features various safety features such as OVP, OCP, and TPROT and provides the user with great flexibility in controlling and programming the output voltage.

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