TPS65133EVM-699

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TPS65133EVM-699 is an evaluaion board designed for off-line switching mode power supplies (DC/DC and AC/DC). This evaluation board enables designers to test power management circuit solutions in a relatively fast and uncomplicated manner. It is located in the Texas Instruments product portfolio, which offers numerous innovative products and tools in order to help designers with digital power design solutions.

Its features include an integrated DC/DC buck, boost, and Inverting Mode output selection, adjustable external power supply voltage (~1.2V to ~3.1V), power rail polarity configurations, and input voltage range up to ~32V. It also provides a wide range of output currents of up to 10A, temperature and over-current monitoring, external loading, and operating temperature range from -40°C to +85°C.

The TPS65133EVM-699 device is widely used in applications such as industrial and automotive battery charger, portable medical applications, basic medical devices, industrial machineries, and ruggedized environments. It is well suited for applications with harsh environmental conditions due to its high power density, compact size, and wide input voltage range.

Working Principle

The TPS65133EVM-699 works by regulating the voltage, current, and power levels of the DC/DC and AC/DC power supplies. It utilizes a Buck, Boost, and Inverting Mode power management model working on its adjustable external power supply voltage (~1.2V to ~3.1V). In each mode (Buck, Boost, Inverting), the controller will regulate the output voltage, current, and power levels, based on the input voltage range with a wide range of output currents up to 10A.

The working principle of the device is based on the switching of a MOSFET in order to create the needed voltage and/or current levels. In Buck Mode, the MOSFET is turned on by an electrically activated switch, which allows current to flow from the drain of the MOSFET to the source. The voltage and current levels of this power supply are regulated by controlling the switch\'s timing and also its on-time. In Boost Mode, the logic is reversed, while in Inverting Mode, the MOSFET is switched out of phase, so that its output is the opposite of the input.

The TPS65133EVM-699 also integrates over-current and temperature monitoring features that allow the device to be used safely and efficiently. The device also utilizes advanced on-chip protection features that protect the power supply circuitry from overvoltages, overcurrent and short circuit conditions. The device\'s temperature monitoring feature monitors the temperature of both the buck and boost converter in order to ensure that the temperature levels do not exceed their safe maximum values.

Conclusion

The TPS65133EVM-699 is an ideal device for designers of DC/DC and AC/DC off-line switching mode power supplies. Its features include an integrated DC/DC buck, boost, and Inverting Mode output selection, adjustable external power supply voltage (~1.2V to ~3.1V), power rail polarity configurations, and input voltage range up to ~32V. It also provides a wide range of output currents of up to 10A, temperature and over-current monitoring, external loading, and operating temperature range from -40°C to +85°C. The working principle of the device involves switching of a MOSFET in order to create the needed voltage and/or current levels. It is well suited for applications with harsh environmental conditions due to its high power density, compact size, and wide input voltage range.

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