A6986TR Integrated Circuits (ICs)

A6986TR Application Field and Working Principle

Introduction

The A6986TR is a high performance, cost effective, low power field-programmable, variable step buck converter. It is a 3.2V to 36V input device, with a switch current capability of 3 amps. The output driving capability is between 2.4V to 28V with an output power of 2.4 W. The buck converter operates in voltage range from 0.5V to 25V, with a maximum current of 1A. The step buck converter offers excellent load and line regulation, along with excellent efficiency due to its low output noise and temperature stability.

Application Field

A6986TR is suitable for various applications. It is ideal for applications in automotive, industrial, telecommunications, and other high-power applications. It can also be employed in power management systems as a low cost, high efficiency DC-DC converter.

The A6986TR has a wide range of applications including: powering up system microcontrollers, providing low-voltage supplies to low-power peripheral devices, powering up power amplifier units, providing a low-voltage supply to motion control systems and Brushless DC Motors (BLDC Motors), powering up switching power supplies, powering up power supply modulators, powering up voltage regulators and powering up power-factor-correction (PFC) systems.

Working Principle

The A6986TR step buck converter is based on the buck topology, which is a type of DC-DC converter. The components of the converter include an input voltage source, a switching power stage, an output filter, a feedback loop circuit and a controller. The input voltage source is the power to be input to the converter. The switching power stage is the heart of the conversion process, and it is composed of transistors and a diode. The output filter is responsible for providing clean and ripple-free outputs. The feedback loop circuit is used to control the output voltage, and the controller is responsible for managing the operation of the switching power stage.

The A6986TR step buck converter works by regulating the duty cycle of the switching power stage. When the duty cycle is increased, a larger amount of power is transferred from the input to the output. Conversely, when the duty cycle is decreased, a lower amount of power is transferred form the input to the output. The output voltage is then regulated by the feedback loop circuit and the controller, keeping it at the desired level.

The A6986TR also has a pulse-width-modulation (PWM) mode for controlling its output voltage. In this mode, the controller sends out a pulse width modulated signal that is used to adjust the duty cycle of the switching power stage. PWM mode allows for a faster response time and a more efficient conversion process than the standard duty cycle based system.

Conclusion

In conclusion, the A6986TR is a high performance, cost effective, and low power step buck converter designed for a variety of high power applications. The step buck converter can be used to power up microcontrollers, low-power peripheral devices, power amplifier units, motion control systems and Brushless DC Motors, switching power supplies, and other power management systems. The converter works by regulating the duty cycle of the switching power stage, and can also be used in pulse-width-modulation (PWM) mode for faster response times and more efficient conversion processes.