HT-7700B

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HT-7700B Application Field and Working Principle

Power management integrated circuits (PMICs) are specialized integrated circuits (ICs) designed to manage a wide variety of supplies and power conversion functions in modern electronics. HT-7700B is a flagship PMIC developed by HiTek Semiconductor. It is a member of HiTek\'s family of low power PMICs and can be used in a variety of applications, ranging from industrial and automotive fields to consumer electronics.

Application Fields

HT-7700B features high-precision DC/DC converters and is designed for applications where accuracy and efficiency are essential. It can accurately regulate voltage for precision analog circuits over wide input voltage range without sacrificing power efficiency. Additionally, its precision voltage control improves the reliability of power supplies in mission-critical systems. HT-7700B is also designed with safety features such as thermal protection and overvoltage protection, making it suitable for applications in safety-critical environments such as factory automation and industrial systems.

HT-7700B is also well-suited for power conversion applications in automotive fields. It offers high-efficiency power switching, allowing it to be used in highly space-constrained applications such as in-vehicle infotainment systems and driver assistance systems. It even has a dedicated automotive test mode for conformance testing with AEC-Q100 specifications.

Finally, HT-7700B can also be used in consumer electronics such as portable devices and wearables. Its wide array of low-power power management functions allows it to handle the power demands of low power systems. Its low power consumption also makes it a great choice for battery-operated devices.

Working Principle

HT-7700B integrates 26-pin TSSOP package with a compact footprint of 5.3mm x 5.3mm. It features integrated precision voltage-output DC/DC converter, a DC/DC converter, MOSFET drivers, enable and fault indication, power offset control and enable pin protection.

The integrated precision voltage-output DC/DC converter features an innovative control loop architecture that is designed to provide accurate and reliable voltage regulation over wide input voltage range. The design of the control loop allows the HT-7700B to achieve higher precision voltage regulation, while at the same time reducing power consumption. The integrated MOSFET drivers are designed to drive switching MOSFETs, with integrated protection from overvoltage, overcurrent and overtemperature.

The HT-7700B also features a dedicated enable pin for controlling the flow of power. This pin is designed to be resistant to electrical noise, making it suitable for applications with high EMI environments. The enable pin also has integrated protection from overvoltage and overtemperature. Additionally, the HT-7700B incorporates power offset control functionality, allowing the user to adjust the power level in a range from 20mV to 2V.

The HT-7700B includes fault and enable flags that indicate the status of the device. The fault and enable flags are activated when the device fails due to overvoltage, overcurrent or overtemperature. The flags also indicate whether the enable pin is active or not.

Overall, the HT-7700B is a high-precision and high-efficiency power management IC, suitable for applications in industrial, automotive and consumer electronics fields. It provides accurate voltage regulation over a wide input voltage range and features low power consumption, making it suitable for applications with low power requirements. The integrated enable and fault indication and power offset control functions make the device suitable for environments with high electrical noise.

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