ZXSC100N8TC

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The ZXSC100N8TC is a DC-DC switching controller which forms part of a larger power-management IC (PMIC) range. This controller is designed with an advanced gate drive circuit and pre-bias start-up, providing a power conversion solution for telecom, enterprise server and long distance transmission applications. It features high-speed current-mode control, as well as integrated functions such as power good signaling and selectable burst mode/continuous conduction and operation.

The ZXSC100N8TC DC-DC switching controller is suitable for low to medium power and can be used with multiple switching topologies such as buck, boost, flyback, forward and push-pull. It has a wide input voltage range and can operate over a temperature range of -40°C to +85°C, making it suitable for different power conversion applications.

The ZXSC100N8TC provides tight line/ load regulation, fast transient response and excellent load and line transient response characteristics. It features an over-voltage protection function which can be used to safely and reliably limit the output voltage of the converter. Other features such as under-voltage lockout protection, over-temperature protection and short-circuit protection make the ZXSC100N8TC an ideal choice for a wide range of power applications.

The working principle of the ZXSC100N8TC is based on high-speed current-mode control. The converter is driven by a clock signal, allowing the controller to switch rapidly depending on the input voltage and output current. It switches on and off in response to the sensed output current, allowing it to maintain the desired output voltage. A feedback loop is used to ensure the output voltage remains within an acceptable range.

When a lower output voltage is required, the on-time of the current-mode driver is reduced, thereby reducing the output power. At the same time, the off-time is increased, allowing the converter to recover energy from the mating transformer’s inductive load. In order to maintain a constant output voltage, the duty cycle parameter is adjusted depending on the average current being drawn.

The ZXSC100N8TC can be used in networking, telecom and enterprise server applications, where reliable power delivery is critical. It is also suitable for long distance transmission applications where precise power control is required. The device features a wide range of protection features and can operate over a wide temperature range, making it a robust and dependable solution for a variety of power applications.

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