ICL7660ESA-T

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The ICL7660ESA-T is a popular voltage conversion integrated circuit, and it is specifically designed to provide a practicable and reliable alternative to switch-mode power supplies. It is a member of Texas Instruments’ “Power Enhancement Products” family, and it provides a wide variety of application areas due to its wide voltage range and supply current capabilities. This article will discuss the application fields and working principles of the ICL7660ESA-T.

Applications

The ICL7660ESA-T is a versatile device and can be used in a variety of applications. It is particularly popular for use in low-power DC-DC converters and in applications that require a step-up voltage such as battery-powered devices, automotive systems, and energy storage devices. It can also be used for LED lighting systems, solar lighting systems, and ultra-low-voltage systems. The ICL7660ESA-T is also well suited for use in voltage regulators and as a power supply in data processing and switching systems. In addition, it can be used in clock circuits and other time-dependent applications where voltage regulation is required.

Working Principle

At the heart of the ICL7660ESA-T is a step-up switching regulator, which is designed to convert a DC voltage from one level to a higher level. The device is comprised of a reversible power transistor (inverter), a power diode and a set of control circuitry. The inverter switches between a high-side and a low-side configuration, allowing power to be transferred between the input and output. As the transistor switches, it moves energy from the output and into the input, creating a voltage gain that is regulated by an internal feedback loop. With the aid of the diode, the current is then passed back to the output.

The control circuitry of the ICL7660ESA-T monitors the output voltage as well as the input supply voltage, and adjusts the switching of the transistor accordingly. The device also features over-current, over-voltage and over-temperature protection as well as an adjustable maximum output current, allowing for a wide variety of applications. Additionally, the ICL7660ESA-T has a low-noise burst mode operation to reduce power consumption in standby mode.

Conclusion

The ICL7660ESA-T is a versatile and cost-effective step-up voltage converter that is popular for its low-power, low-noise characteristics. It is well suited for use in low-power, low-noise applications such as LED lighting systems, solar lighting systems, and ultra-low-voltage systems. The device is also suitable for use in DC-DC converters and voltage regulators, as well as in clock and data processing circuits. Its adjustable current cutoff, over-temperature protection, low-noise operation, and wide voltage range make it an ideal solution for numerous applications.

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