LM2772SDEV

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LM2772SDEV is an evaluation board from Texas Instruments. It is designed for DC/DC and AC/DC (off-line) switch mode power supply (SMPS). It helps users to analyze and develop switch mode power suppliers in an efficient and cost-effective way. The evaluation board LM2772SDEV is based on the LM2772S integrated circuit (IC) from Texas Instruments. It can be used for testing applications with a buck or boost conversion in a wide range of output volts and current.

The operating frequency range of the LM2772SDEV runs over 100 kHz to 1 MHz. It also caters to applications demanding accurate and fast transient response. The IC features robust overvoltage and overtemperature protection, as well as protection against the short circuit. This decreases customer development time. The evaluation board also incorporates an excellent size and weight to power ratio, making it suitable for applications where limited space and power are at a premium.

The LM2772S IC is an integrated power supply that contains a switching converter, an output driver, thermally enhanced power switching devices, a push-pull gate driver, an undervoltage lockout regulator (UVR) circuitry and low-battery monitoring (LBM) circuitry. The output driver of the IC is used to drive a transformer, and the switching converter is used to regulate the output voltage. The power switching devices in the IC are directly connected to a transformer\'s primary winding which switches the current flow from the input to the output.

The IC also contains an enhanced short-circuit protection function, which limits the maximum current that can flow through the switching devices. This prevents damage to the switching devices when the output is shorted. The UVR circuitry is utilized to monitor the input voltage to detect an undervoltage condition, while the LBM circuitry is used to detect a low-battery condition.

The LM2772SDEV evaluation board also incorporates a fixed frequency PWM controller with very low shutdown current. This ensures that the maximum power output is always optimized. It also includes features such as thermal shutdown, peak current limit and overvoltage protection. The evaluation board also includes an on-board power-on reset circuit to provide a reliable reset at start-up and an excessive current warning indicator. All the features of the board are selectable via pin jumper settings and are easily adjustable.

The LM2772SDEV evaluation board is an excellent choice for development and testing of electronic applications with DC/DC and AC/DC switch mode power supplies. It is a cost-effective solution with accurate transient response and robust features, making it a great choice for high power applications.

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