STEVAL-CBL004V1

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STEVAL-CBL004V1 is an evaluation board for DC/DC & AC/DC (Off-Line) SMPS (switch-mode power supplies). The evaluation board is designed to evaluate the performance of the STNRGPF021PN SMPS controller integrated circuit (IC) in a Buck type buck/boost application. The board is designed to run from a wide input voltage range from 4.7 V to 25 V DC and is capable of providing up to 13.8 W output power. The board is also designed with multiple built-in features to make evaluation and performance measurement easy and trouble free.

Application Field: The STEVAL-CBL004V1 evaluation board offers a convenient design platform for evaluation and testing of the STNRGPF021PN in DC/DC and AC/DC buck/boost applications. The evaluation board is capable of operating from wide input voltage ranges allowing for the evaluation of a variety of DC/DC and AC/DC buck/boost application scenarios. The board is also ideal for prototyping purposes for such applications as LED lighting modules, DC motor controllers, laptop power supplies, and low-power offline switching applications.

Working Principle: The STEVAL-CBL004V1 evaluation board is based on a buck-boost topology. This topology is used to efficiently convert a wide input voltage range into a constant, stable output voltage. The board is driven by the STNRGPF021PN IC, which contains all the necessary circuitry to provide the correct PWM switching for optimal power conversion from a wide input voltage range and into a constant, stable output voltage. The STNRGPF021PN IC is a ROM based programmable device, allowing for detailed customization of the design according to the user’s specific application requirements.

The STEVAL-CBL004V1 evaluation board is designed with multiple conversion modes, allowing for easy evaluation of both buck and buck-boost conversion. The board also features an embedded output voltage selection switch and two enable switches, allowing for the selection of output voltage and the flexibility to switch between on and off functions. The board also includes a standby mode, whereby the output voltage can be set to 0 V while still allowing for normal monitoring and control.

The STEVAL-CBL004V1 evaluation board also features an LED power indicator, allowing for easy program verification and visual monitoring of power consumption and system performance. In addition, the board includes an adjustable output voltage trim adjuster, allowing for fine tuning of the output voltage according to specific application requirements. The board also includes several protection functions, including input voltage sensor, input over voltage protection, and output over voltage protection.

The board also includes the necessary components to enable evaluation of the STNRGPF021PN in applications such as LED lighting, DC motors, laptop power supplies, and other low-power offline switching applications. The board is designed with a number of features including wide-range adjustment of the output voltage range as well as the ability to select between buck or buck-boost operation. In addition, the board includes multiple diagnostics features including LED power indication, as well as voltage trim adjust and over voltage protection circuits. As such, the STEVAL-CBL004V1 evaluation board is an ideal platform for prototyping and testing of DC/DC and AC/DC buck/boost applications.

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