BM2P139TF-EVK-001

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The BM2P139TF-EVK-001 evaluation board can be categorized as an off-line SMPS, which stands for switch mode power supply, used in DC/DC and AC/DC applications. This board is designed and manufactured by STMicroelectronics, and its main purpose is to provide a high efficiency power boost converter which is suitable for industrial applications with extended temperature range and high reliability requirements.

The BM2P139TF-EVK-001 evaluation board consists of an integrated, high efficiency fly back PWM Controller IC, the BM2P139TF along with the other basic components required to implement the power boost converter. The board has been designed to operate with a wide input voltage range of 3.15 V to 90 V. It can convert the input voltage to a higher output voltage with a high efficiency of up to 90 %. It can be used to generate a constant output voltage from an adjustable input voltage. The output voltage can be adjusted from 0.6 V to 90 V, with a maximum output current of 3.5 A.

The BM2P139TF-EVK-001 evaluation board also includes a built-in protection circuit, which prevents overvoltage, overcurrent and overtemperature situations. The protection circuit is also accompanied by an enable and error signal pin, which can be used to inform the system host controller when any of the conditions set off the protection circuit.

The board is equipped with an on-board voltage sense resistor and current sense resistor, which helps in monitoring the output voltage and current of the power converter. This helps in adjusting the input load current, and to efficient manage the peak currents that flow through the components during switching.

The BM2P139TF-EVK-001 is composed of a power stage and a control section. The power stage consists of a flyback-type inductor, MOSFET switches and two anti-parallel diodes. The boost controller IC drives the external components, with a frequency of 400kHz to control the output of the converter.

The boost converter circuit is designed to be connected to a step-down transformer, which helps to reduce the input voltage from the higher supply voltage to a required level. The transformer can be optimized to have a low core loss and low load regulation.

The BM2P139TF-EVK-001 can be used in a wide range of applications, such as telecom/datacom power supplies, industrial motor drives, LED lighting, consumer appliances and automotive applications. The board is suitable for extended temperature range and high reliability requirements, due to its integrated features like overvoltage, overcurrent and overtemperature protection mechanisms.

Overall, the BM2P139TF-EVK-001 evaluation board is a highly efficient and reliable off-line power boost converter, which is suitable for various DC/DC and AC/DC applications. The integrated features like voltage and current monitoring functions, overvoltage, overcurrent and overtemperature protection mechanisms, and adjustable output voltage and output current makes it an ideal product for a wide range of applications.

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