78ST115HC

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DC-DC converters are widely used in many different applications, such as various types of power supplies, automotive electronic systems, laptop computers, and many other electronics devices. The 78ST115HC is a DC-DC converter manufactured by AgileSwitch Corporation that offers high-efficiency, low power consumption, and long life. In this article, we will discuss its application field and working principle.

The 78ST115HC is an efficient full-bridged half-bridge DC-DC converter with an input range of 6-36V and an output range of 0.7-3.3V. It is designed for use in consumer electronics, portable devices, automotive Electronics, telecom systems, industrial devices, and medical applications. The 78ST115HC has a high efficiency of up to 95% and a low Qrr value, making it suitable for power efficient applications. It has overvoltage protection, overcurrent protection, thermal protection, and short circuit protection, making it reliable and safe to use.

The 78ST115HC is based on a full-bridge switching topology, which is a type of buck topology. It uses an integrated full-bridge half-bridge converter IC that is designed to convert an unregulated input voltage into a regulated output voltage. The full-bridge half-bridge topology allows for simple wiring and allows for bidirectional power flow. To achieve higher conversion efficiency, the 78ST115HC utilizes the principle of synchronized rectification.

Synchronous rectification involves the use of low-side MOSFET switches (or synchronous rectifiers) in place of diodes. This reduces the number of losses that occur during the diode switching process and results in improved efficiency. Additionally, this topology utilizes active low-side MOSFET and active high-side high-side MOSFET drivers, which allows for higher peak current capabilities and low operating temperatures.

The 78ST115HC also features a regulated Output Voltage, which is adjustable in 1.2 mV increments, allowing for precise control of the output voltage. Its wide input range, along with its high efficiency, low power consumption, and rugged construction make it suitable for a variety of DC-DC applications.

To summarize, the 78ST115HC is a DC-DC converter that is designed with high efficiency and reliability in mind. It is based on a full-bridge half-bridge topology and utilizes synchronized rectification to improve efficiency. It has a wide input operating range and a adjustable regulated output voltage that can be adjusted in 1.2 mV increments. Its robust design and reliable performance make it suitable for a variety of DC-DC applications.

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