ATA6821-TUQY

ATMEL ATA6821-TUQY is a power management integrated circuit (PMIC), specifically designed as a gate driver for cooling fans, and is widely used in cooling fan applications. It is a low-cost solution for fan control systems and offers a cost-effective and reliable solution for fan failure protection. It contains a gate drive version of the popular ATA6820-EUTR, which is a high-voltage and low frequency fan driver.

The ATA6821-TUQY provides a complete system solution for cooling fan control requirements, and features a two-stage architecture consisting of two high-side driver blocks. The first, called the Gate Driver Stage, is responsible for controlling the fan motor power, while the second, called the Regulation Stage, is responsible for monitoring the operating temperature of the fan motor. The Gate Driver Stage generates a high-voltage pulse that passes through the fan motor to force an electromagnet to rotate the fan blades. The Regulation Stage continually monitors the temperature of the fan motor and adjusts the pulse width to control the speed of the fan motor.

The ATA6821-TUQY is a single-chip solution with low power consumption. Its two-stage architecture provides both improved efficiency and cost savings. The on-chip high-voltage driver delivers up to 6A of drive current, while its wide range of working temperatures is ideal for many fan control applications. A built-in temperature sensing circuit allows the fan speed to be adjusted based on the motor temperature. The ATA6821-TUQY also includes a fast start-up time and a built-in protection mechanism that eliminates destructive over-current and thermal effects.

The ATA6821-TUQY\'s low power and low frequency operation make the device extremely energy efficient. This efficiency is further increased by its integrated temperature compensation circuit, which ensures that the fan speed is not affected by high-temperature environments. Also, the device can be used in a variety of ways, such as as a closed-loop speed control for fans, as an open-loop speed control for fans, or as a pwm generator for pumps and other devices.

Overall, the ATA6821-TUQY is a reliable, cost-efficient and energy-efficient PMIC gate driver for fan control applications. Its single-chip solution combines a high-voltage driver, temperature monitoring, and gate drive functionality, allowing for fast and simple fan control with minimal hardware. Additionally, its low power consumption further contributes to its energy efficiency. As a result, the ATA6821-TUQY is an incredibly versatile solution for fan control applications in a wide range of settings.