SI32260CQC20SL0EVB

SI32260CQC20SL0EVB is an integrated circuit module from Silicon Labs, a leader in communication, sensing, and power solutions. It is designed to optimize the power efficiency and scalability in embedded applications, and designed for applications such as energy metering, DC/DC power conversion, motor control, and lighting solutions. The board helps customers evaluate the performance of the SI32260 device in various applications, as well as to demonstrate and develop applications.

Overview

The SI32260CQC20SL0EVB evaluation and demonstration board is designed with the same circuit and power stage used for the Silicon Labs’ SI32260 wide input supply voltage buck SIP (small outline package) controller. The board also provides monitoring of near-contact temperature points for device certification testing. The package dimensions are 18x11mm.

The board includes parts such as the buck controller itself, power transistor, over-temperature protection MOSFET, dual inductors, and pre-assembled termination connections for switching frequency adjustment. It also features several test points for voltage and current measurement in order to facilitate circuit debugging.

Work Principle

The power stage on the SI32260CQC20SL0EVB receives input power from any DC (direct current) source and regulates it to generate the regulated output. The board includes the Buck controller, power transistor, inductors, capacitors, and other related components. The buck controller uses pulse width modulation (PWM) to control a transistor to generate the output, modulate the voltage, and regulate it according to the predetermined setting.

The Buck controller manages internal circuitry to monitor and maintain the output voltage, except at startup. During startup, it first creates a soft-start by gradually increasing the output current from 0 to its set value. The buck controller then monitors the output current and adjusts the applied voltage to maintain a constant output voltage.

Applications

The SI32260CQC20SL0EVB can be used for both DC/DC voltage conversion and PWM control. The board is designed for different applications such as electricity metering, motor control, and lighting solutions. It also can be used for voltage and current regulation in most embedded devices such as laptop adapters, medical devices and lighting systems.

Moreover, the board is also suitable for powering industrial equipment, HVAC systems, charging systems, communication equipment, medical equipment, and medical implants. It is also applicable for solar power systems, automotive applications, smart meters, smart grids, SMPS, digital signage, and most AC/DC and DC/DC power applications.

Advantages

The SI32260CQC20SL0EVB provides users with the advantages of small size and low power consumption. The small size of the board enable users to fit it even in small spaces and its low power consumption helps save money. In addition, the buck controller on the board provides multiple levels of protection and start-up makes it suitable for robust and reliable applications.

The board also has inbuilt current sensing with adjustable threshold, which improves efficiency and reduces components costs. The board includes circuit protection such as over-voltage protection, under-voltage protection, and over-temperature protection, which helps to protect against current surges and other potential failure modes.

Conclusion

The SI32260CQC20SL0EVB evaluation and demonstration board from Silicon Labs is a versatile solution which combine efficiency, scalability and flexibility. It is suitable for different applications such as energy metering, motor control, and lighting solutions, with the advantage of having a small size and low power consumption. Additionally, the board includes multiple circuit protection and provides test point for voltage and current measurement for the end user.