RT8525DGQW

Series:	*
Packaging:	Tape & Reel (TR)
Part Status:	Active
Package / Case:	12-WFDFN Exposed Pad
Supplier Device Package:	12-WDFN (3x3)

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Introduction

The RT8525DGQW is an advanced DC/DC switching controller that integrates power control, voltage regulation and protection in a compact package. This type of PMIC - DC/DC switching controller is suitable for many applications, such as automotive, computer, telecom and industrial automation. The features of the RT8525DGQW include high efficiency and low operating current, good EMC performance, wide operating temperature and a wide input voltage range. This article will discuss the application field and working principle of the RT8525DGQW.

Application Fields of the RT8525DGQW

The RT8525DGQW has many applications, including automotive, computer, telecom and industrial automation.

• Automotive: The RT8525DGQW can be used for automotive power applications, such as power supply units, engine control units, and driver assistance systems. It can provide power to critical automotive systems and provide high reliability.
• Computer: The RT8525DGQW can be used in notebook computers, desktops and servers. It is suitable for DC/DC converters, passive and active power supply systems and power system controllers.
• Telecom: The RT8525DGQW can be used in telecom systems such as PCMs, modems, base stations and routers. It is able to provide power to critical systems and provide high stability and reliability.
• Industrial Automation: The RT8525DGQW can be used for industrial automation applications. It is suitable for DC/DC converters, power system controllers and power supply systems.

Working Principle of the RT8525DGQW

The RT8525DGQW is a monolithic DC/DC converter. It is based on the pulse width modulation (PWM) topology with a constant frequency. The maximum switching frequency of the RT8525DGQW is 2MHz. The RT8525DGQW consists of an internal oscillator, error amplifier, PWM comparator, insulated gate bipolar transistor (IGBT) driver, over-temperature protection, under voltage protection and short-circuit protection.The internal oscillator generates a fixed frequency signal, which is used to clock the internal PWM comparator. The error amplifier is used to adjust the output voltage of the system, and the PWM comparator is used to compare the reference voltage with the feedback voltage. When the two voltages are equal, the RT8525DGQW will turn on the output transistor, allowing current to flow through it. When the output voltage is higher than the target voltage, the RT8525DGQW will switch off the output transistor, blocking the current. This process is repeated until the output voltage is stabilized. The IGBT driver is used to turn on and off the transistor quickly. The over-temperature protection will shut down the RT8525DGQW if the temperature exceeds the threshold. The under voltage protection will shut down the RT8525DGQW if the voltage is lower than the threshold. The short-circuit protection will shut down the RT8525DGQW if a short circuit occurs.

Conclusion

In conclusion, the RT8525DGQW is a high efficiency DC/DC switching controller that is suitable for many applications, such as automotive, computer, telecom and industrial automation. It features high efficiency and low operating current, good EMC performance, wide operating temperature and a wide input voltage range. It consists of an internal oscillator, error amplifier, PWM comparator, IGBT driver, over-temperature protection, under voltage protection and short-circuit protection.

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