NCP1256B60WGEVB

NCP1256B60WGEVB is a type of evaluation board, known as either DC/DC or AC/DC (Off-Line) SMPS, that is designed to provide an internal power source for Low Voltage DC (LVDC) applications. This evaluation board is intended to be used as an example of a power management solution that combines a wide variety of features, such as Constant-Voltage (CV) and Constant-Current (CC) regulation, high voltage protection, PWM frequency control, adjustable switching frequency, and various current limit protections. It has a wide variety of applications, such as in personal computers, telecommunication systems, consumer electronics, automotive, industrial, and medical systems.

The NCP1256B60WGEVB evaluation board implements a non-isolated SMPS topology that consists of a buck-boost oscillator (DC-DC), Constant-Voltage (CV) regulator, High-Side (HS) FET, Low-Side (LS) FET, and Feedback resistors. The DC-DC oscillator is a component that transitions voltage between the input and output voltage levels of the device. The DC-DC oscillator is implemented using a Buck-Boost PWM control algorithm and is configured to maintain a constant output voltage under changing load conditions. The CV regulator is designed to ensure that the output voltage stays within its normal operating range and is adjustable via single or dual potentiometers.

The board is also equipped with a High Side FET, also known as a High Voltage FET, that is configured to provide maximum power isolation between the input and output voltage. The High-Side FET is designed to reduce the Common Mode noise and ensure that the output voltage stays within its specified operating range. The Low Side FET is configured for current regulation and is capable of providing up to 5A of output current at 3V. The Feedback resistors are used for output voltage regulation and ensure that the voltage stays within its specified tolerance, even under varying load conditions.

An external resistor is used to set the maximum output current and the board is designed to provide various current limit protections, such as the Over-Current-Limit (OCL) protection, Soft-Start (SS) protection, and over-temperature protection. The board also includes a Pulse-Width Modulation (PWM) frequency control feature that allows the user to set the switching frequency. Lastly, the board includes a standby mode, which is activated by a push-buttonswitch and allows the user to turn the device on and off.

In conclusion, the NCP1256B60WGEVB is a highly versatile evaluation board, designed for use in Low Voltage DC applications. It implements a non-isolated SMPS topology that is composed of a buck/boost DC-DC oscillator, Constant-Voltage regulator, High/Low Side FETs, and Feedback resistors. It is also equipped with various current limit protections, PWM frequency control, and a standby mode. The board is designed for large scale production applications and offers exceptional performance, reliability, and efficiency.