EVB-EN6340QI

The EVB-EN6340QI is an evaluation board for DC/DC & AC/DC (Off-Line) SMPS. This board utilises the EN6340QI controller IC, and has an integrated junction temperature sensor, hybrid gate-driver, start-up current source, voltage sense device, diagnostic feedback monitoring, and over-voltage and over-temperature protection capabilities. The board has single-ended input and outputs, enabling it to connect to a 10V to 17V DC input. It is a feature rich SMPS evaluation board designed to provide conversion efficiency up to 97.5%.

The core concept of this evaluation board is the integrated circuit EN6340QI. This controller IC provides a complete control function for integrated SMPS. It operates on a wide range of input voltages, and uses an advanced Pulse Width Modulation (PWM) technique to control the switching of the SMPS’s power devices. The IC is also built with current sense amplifier, temperature compensation, peak current-mode control, voltage lock control, and soft start functions which further improve the stability and reliability of the whole system.

The detailed hardware design of the board allows it to minimize losses in the SMPS when in operation. It leverages advanced gate driving and on-chip peak current-mode control techniques to ensure fast responses to load transients and load sharing, while providing low-loss power transmission through MOSFETs. In addition, the integrated junction temperature sensor also provides a wide temperature range to accommodate high power levels and over-temperature protection.

Moreover, EVB-EN6340QI incorporates a voltage sense device that monitors the output voltage at the remote point. With this device, the feedback control loop of the system can be closed regardless of load variations and input voltage. The feedback monitoring circuit also allows for diagnosis and testing of different conditions, such as open and short circuit protection, and thermal protection. In addition, the integrated multiple voltage test points help to facilitate debugging and testing of the system.

In summary, the EVB-EN6340QI is a feature packed, high efficiency SMPS evaluation board. It provides the core SMPS functionality while incorporating advanced technologies such as on-chip peak current-mode control, voltage sensing, and diagnostic feedback monitoring. Coupled with its single-ended DC inputs and outputs, it can be used to evaluate the performance of a wide range of DC/DC & AC/DC (Off-Line) SMPS applications.