LM3679TL-1.8EV

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The LM3679TL-1.8EV is a high-performance high-voltage switching IC (integrated circuit) designed and manufactured by National Semiconductor Corporation. It is a member of their low-voltage family of linear voltage regulators and is used in applications requiring a high efficiency and low output voltage ripple. The functionality of the IC comprises both AC/DC (off-line) and DC/DC (on-line) switched mode power supplies.

The application field of the LM3679TL-1.8EV Evalution Board (EB) includes offline power supplies, such as portable consumer electronics, battery-powered devices, automotive polarity protection, and off-line power supplies for various industrial applications. The design of the device is robust and manufacture-friendly, featuring low component count, low insertion loss, high efficiency, low jitter, wide input voltage range, and good heat management. The EB also has a low standby power consumption of just 6.2W and a wide operating temperature range of -25°C to 50°C.

The hardware design of the EB is designed to give designers of switch-mode power supplies freedom to explore a variety of features without spending too much time on physical layout. It features two on-board control pins for the enable and shutdown functions. The user can also control the voltage output and currents via the on-board Current Sense Pins. The board is also compatible with advanced power requirements such as soft start, enable, shutdown, and temperature monitoring.

The LM3679TL-1.8EV application field also encompass AC/DC (off-line) switched-mode power supplies. It is a highly efficient and reliable switch mode power supply designed for multiple application fields such as industrial, automotive and consumer electronics. The EB comes with an on-board voltage controller to provide a variety of advanced features such as programmable voltage output range and current protection. The device also offers high electrical efficiency, low ripple and noise, and low standby power consumption. The EB also supports a wide operating temperature range of 0°C to 70°C.

The working principle of the LM3679TL-1.8EV Evaluation Board makes use of the principle of a switching conversion technique. In general, a switching power supply is a power conversion technique where the output voltage can be different from the input voltage. This is achieved by using an active device, such as a transistor, to control the output voltage through a switch-mode power supply. In the EB, the transistor is used as a voltage regulator and a transformer is used to convert the input AC voltage into the correct output voltage. The EB is designed to be used in a single-output, low-voltage AC/DC design. In this configuration, an efficient and reliable DC output voltage is achieved.

The LM3679TL-1.8EV Evaluation Board is well-suited for a wide variety of applications, including portable consumer electronics, industrial power supplies, automotive polarity protection, and off-line power supplies. The platform offers low power consumption, wide input voltage range, advanced features, and high efficiency. The EB has a small footprint and is designed to give power supply designers flexibility to explore and create a variety of switch-mode power supplies. Its wide operating temperature range of 0°C to 70°C and low standby power consumption make it an ideal solution for a variety of applications.

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