PT4853C

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DC DC Converters

PT4853C is a kind of DC DC converter with isolated output, which is suitable for both single voltage and dual voltage applications. Comparing with the conventional transformer DC DC converter, this converter provides higher efficiency, smaller size and lighter weight.

Application Field

PT4853C converter is mainly used in computer motherboards, communication device power supplies, LCD monitor display adapter, automotive power system, cell phone base station power supply system, consumer products and other applications.

Working Principle

The working principle of PT4853C converter is based on a Pulse-Width Modulation (PWM) converter that utilizes a pair of insulated transformers with a voltage of 375 V or 750 V. The insulated transformer is for isolation and voltage conversion from the input voltage to the output voltage. The input and output voltages of the converter are regulated by the PWM control circuit. The PWM control circuit in turn regulates the voltage of either windings of the transformer by controlling the switching times of the power transistor and by controlling the input current. By continuously adjusting the switching times, the PT4853C converter achieves the optimal efficiency and the desired output voltage. Furthermore, the PT4853C converter is designed with low EMI and protection features.

Features and Benefits

PT4853C converter is designed with a variety of features and benefits. Besides the aforementioned PWM control circuit, the converter also includes a built-in auto restart, over-voltage protection, over-temperature and surge protection. Moreover, the converter features a low power standby mode, a low RDS(ON) power dissipated output MOSFET and an adjustable output voltage within the range of 6-44V.

Conclusion

PT4853C DC DC converter is ideal for a wide range of computational, communication, and consumer applications. It features a variety of protection features and adjustable output voltage, both of which ensure the safe and efficient operation of the converter. In addition, the converter’s efficient power conversion, small footprint, and lightweight design make it good choice for any application in need of a reliable power source.

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