HF920GSE-Z

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HF920GSE-Z (High Frequency DC/DC Controller) is an advanced AC/DC converter that provides a very stable, highly efficient power conversion and regulation solution. It is suitable for applications in industrial, automotive, telecommunications, and medical sectors.

HF920GSE-Z is a high efficiency offline switching DC/DC controller. This device uses high frequency PWM topology to regulate the output. It has the capability to run in Pulse Frequency Modulation (PFM) mode for light loads for maximum efficiency. The device incorporates four integrated digital loop control devices to ensure highest accuracy and performance.

The device involves two main stages: an off-line PWM current mode converter (the controller), and an external power stage. During the initial flyback phase, the transformer current reaches its peak level, and then declines at a controlled rate proportional to the peak switch current. The controller operates in burst mode, cycling its switches between the peak current and zero. The frequency of the cycling is determined by the external resistor, R18. After the flyback phase, an oscillator takes control to implement the desired pulse frequency modulation.

HF920GSE-Z includes protection features such as over voltage protection (OVP), short circuit protection (SCP) and over temperature protection (OTP) to ensure robust design and stability. Additionally, this device offers a shutdown mode, a current limiting feature and a remote read back. It provides robust, efficient and reliable operation.

HF920GSE-Z has a wide operating temperature range of -25°C to +85°C. The package of this device is PowerWIRE, a very small low-profile package with high power density and increased reliability.

With its wide input range from 85~265 Vac, HF920GSE-Z guarantees a very high performance and reliable AC/DC conversion. Its wide output voltage range (from 0.6~50VDC) provides flexibility for different application conditions. Overall, this device provides manufacturers with the flexibility and high efficiency, making it an ideal choice for many applications.

In conclusion, HF920GSE-Z is a high frequency DC/DC controller designed to provide reliability, high efficiency and flexible control solutions for a wide range of industrial, automotive, telecommunications and medical applications. With its high power density and advanced features, this device is suitable for a variety of applications. It also offers a wide input voltage range, a wide output voltage range and an extended operating temperature range, allowing manufacturers to find the perfect solution for their application.

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