HMC981LP3E

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HMC981LP3E application field and working principle

As a specialized PMIC - Power Management circuit, the HMC981LP3E is widely used in different applications. Its working principle is also relatively simple. This article will discuss how the HMC981LP3E works and what its application field is.

Introduction to HMC981LP3E

The HMC981LP3E is a three-channel, low-power DC/DC converter with integrated regulators and a pre-programmable step-up/step-down linear regulator. This device enhances efficiency, simplifies board layout and reduces cost by eliminating the need for external components.It includes overvoltage protection, undervoltage protection, integrated voltage sensing and current sensing, and uses a unique single-wire programming protocol that allows it to be dynamically adjusted at runtime.

Application Field

The HMC981LP3E is widely used in various applications, such as industrial control, automotive, battery and personal computers. As a low-power DC/DC converter and integrated regulator, the HMC981LP3E can be used in multiple applications, such as:

• Intelligent battery charger
• Battery-powered devices
• Mobile phones
• PC systems
• Automotive system
• Industrial control system.

Working Principle

The HMC981LP3E adopts sigma-delta modulation radio frequency (RF) technology, which is composed of an internal reference oscillator and a DC/DC converter as well as a post-regulation IC.The working principle of the HMC981LP3E is relatively simple. It controls the output voltage of a DC/DC power converter using a sigma-delta modulation technique, converting an analog input signal into a digitally coded output. The output voltage is regulated by adjusting the output current and frequency of the converter.The HMC981LP3E is equipped with a wide variety of features, such as overvoltage protection, undervoltage protection, temperature compensation, integrated voltage/current sensing, and a single-wire programming protocol. All of these features provide excellent performance and reliability of the device.

Conclusion

In conclusion, the HMC981LP3E is a specialized power management integrated circuit for multiple applications in a variety of settings. The HMC981LP3E uses sigma-delta modulation radio frequency technology to regulate its voltage output, providing excellent performance and reliability. The HMC981LP3E is suitable for use in intelligent battery chargers, battery-powered devices, mobile phones, PC systems, automotive systems, industrial control systems, and other applications.

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