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ALTAIR05T-800TR application field and working principle

The ALTAIR05T-800TR is a highly reliable, efficient and cost-effective Power Management IC (PMIC) for both offline and Offline Switcher applications. It is designed for a wide range of input voltages from 5V to 35V, with a high-efficiency switching power converter that can convert input voltages to corresponding output voltages.

The ALTAIR05T-800TR is a highly integrated offline switch for high-density applications, with the total solution size being only 4 mmX4 mm. It includes the main functional blocks required for offline DC/DC switching such as integrated switching regulator, high-speed voltage-mode control, over-voltage protection, low-voltage protection, thermal shutdown circuitry, and precise reference voltage.

The integrated regulator enables the device to achieve high-efficiency performance and high power conversion, while ensuring reliable energy transfer to the load. The dynamic voltage-mode control provides higher efficiency, faster response to load transients and greater control of output voltage during power-on and power-down conditions. The protection features, such as over-voltage protection, low-voltage protection, thermal shutdown and precise reference voltage, ensure more secure operation of the converter and its associated circuitry.

The ALTAIR05T-800TR can be used in a variety of applications such as consumer electronics, laptop computers and portable devices. It offers high efficiency and high step-down accuracy, as well as excellent temperature stability. The ALTAIR05T-800TR can also be used in automotive applications, as it supports a wide input voltage range. In addition, its low profile and high integration offers significant space savings.

The working principle of the ALTAIR05T-800TR is based on a Pulse Width Modulation (PWM) technique. The power converter uses a PWM controller to modulate the output voltage, by varying the duty cycle of the input voltage pulse. The duty cycle of the PWM signal is controlled by an internal control loop which compares the error between the reference voltage and the feedback voltage. When the error voltage is greater than the preset error voltage, the duty cycle of the PWM is increased, resulting in increased output voltage.

The ALTAIR05T-800TR is an excellent choice for offline and Offline Switcher applications. It offers high efficiency, wide input voltage range, high power conversion, protection features, and excellent temperature stability, making it suitable for a range of different applications. The internal control loop allows for precise output voltage control, making it ideal for high density applications where space is at a premium.

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