BQ25100EVM-654

The BQ25100 evaluation module (EVM-654) is an evaluation and demonstration board and kit that helps engineers understand the operation of the BQ25100, which is a low-input voltage, highly-efficient synchronous boost converter. Designed to quickly provide an understanding of the device and its components, the EVM-654 enables the user to evaluate the operation of the device over a wide range of input and output voltages.

The BQ25100 EVM-654 is an ideal solution when designing for low-input voltage applications where efficiency and light-load performance is critical. The EVM-654 is a two-layer printed-circuit-board (PCB) that contains the necessary components to operate the device at both static and dynamic conditions. The evaluation board includes an onboard voltage regulator, a power MOSFET, an adjustable resistor, a trace connecting the metal pad corresponding to the output voltage, and two ceramic capacitors.

The BQ25100 EVM-654 can be connected to an analog or isolated digital power supply (40 V max input) and a load (up to 3 Amps). The device regulates the input voltage to the target output voltage. The user can adjust the output voltage by changing the value of the adjustable resistor, providing a wide range of output voltage setting. The adjustable resistor also allows the user to adjust the maximum limit switch current, thus setting the maximum operating current of the device.

The application field of the BQ25100 EVM-654 include RF applications, LED lighting, battery chargers, and portable medical devices. The device offers a wide range of operating conditions, allowing the user to quickly evaluate the device in an application-specific environment. Additionally, the device is designed to support rigorous testing, including accurate measurements of the input voltage, output voltage, output current, and power consumed.

The working principle of the BQ25100 EVM-654 is based on the operation of the BQ25100 boost converter. The device is an integrated circuit that provides a regulated voltage to the load. The device consists of an internal power MOSFET coupled with a low-noise voltage regulator and low-dropout regulator (LDO). The power MOSFET allows the BQ25100 to mechanically switch the power to the output node, thereby providing an efficient boost conversion as well as low-side gate drive capability. The voltage regulator maintains a constant output voltage, regardless of the input voltage, while the low-noise regulator improves the device\'s performance in noise-sensitive applications. The resulting combination of switched power supply, voltage regulator, and LDO make the BQ25100 EVM-654 an ideal design tool for quickly and accurately evaluating the performance of the BQ25100.

In conclusion, the BQ25100EVM-654 is an evaluation and demonstration board and kit that provides an ideal solution for engineers developing low-input voltage, highly-efficient, and light-load applications. The device includes both static and dynamic components, allowing the user to quickly evaluate the operation of the device. The application field of the device includes RF, LEDs, battery chargers, and portable medical devices, and the working principle of the device is based on the operation of the BQ25100boost converter. Together, all of these components make the BQ25100EVM-654 and excellent design tool, allowing engineers to quickly and accurately evaluate the performance of the device.