TOP258PN is a primary-side regulated switching regulator controller. It operates by controlling the duty cycle of the power MOSFET in a flyback converter topology. The feedback pin (FB) monitors the output voltage and adjusts the duty cycle accordingly to maintain regulation. The compensation pin (COMP) provides stability to the control loop. The current sense pin (CS) detects the current flowing through the power MOSFET for current limit protection.
TOP258PN is widely used in various power management applications, including:
(Note: This list is not exhaustive and may vary based on specific requirements and availability.)
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Sure! Here are 10 common questions and answers related to the application of TOP258PN in technical solutions:
Q: What is TOP258PN? A: TOP258PN is a high-performance offline switcher IC (integrated circuit) designed for power supply applications.
Q: What are the typical applications of TOP258PN? A: TOP258PN is commonly used in various power supply solutions, including LED lighting, industrial controls, consumer electronics, and telecommunication equipment.
Q: What is the input voltage range supported by TOP258PN? A: TOP258PN supports a wide input voltage range from 85VAC to 265VAC.
Q: What is the maximum output power that can be achieved with TOP258PN? A: The maximum output power depends on the specific design and configuration, but TOP258PN can handle power levels up to several hundred watts.
Q: Does TOP258PN require an external MOSFET for operation? A: No, TOP258PN integrates a high-voltage MOSFET internally, eliminating the need for an external MOSFET.
Q: Can TOP258PN operate in a flyback topology? A: Yes, TOP258PN is specifically designed for flyback converter topologies.
Q: What are the key features of TOP258PN? A: Some key features of TOP258PN include primary-side regulation, frequency jittering for low EMI, auto-restart protection, and built-in line voltage compensation.
Q: Is TOP258PN suitable for universal input voltage designs? A: Yes, TOP258PN is designed to support universal input voltage ranges, making it suitable for designs that need to operate across different regions.
Q: Does TOP258PN have built-in protection features? A: Yes, TOP258PN includes various protection features such as overvoltage protection (OVP), overload protection (OLP), and thermal shutdown.
Q: Are there any reference designs or application notes available for TOP258PN? A: Yes, the manufacturer of TOP258PN provides reference designs and application notes that can help engineers in implementing the IC effectively in their designs.
Please note that these answers are general and may vary depending on the specific requirements and design considerations.