IR3897MTR1PBF Integrated Circuits (ICs)

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

IR3897MTR1PBF is an integrated circuit intended for use as an adjustable switching voltage regulator. It is manufactured by Infineon Technologies, and is specifically classified as a power management Integrated Circuit (PMIC). It provides protection against over temperature, over voltage, under voltage and short-circuit, and also offers intelligent control capability, power limitation and IP control.

As a PMIC, IR3897MTR1PBF is designed to regulate the voltage output of a DC-DC switching regulator, typically for applications such as DC-DC converters, automobiles and industrial systems. The integrated circuit is optimized to provide maximum efficiency, and is capable of up to 99% efficiency at 7A.

The IR3897MTR1PBF includes a high side MOSFET, and integrates a low side MOSFET in the same package. It has a fixed frequency power supply that keeps switching losses low and has the advantage that it can accept both DC and AC inputs. It also has an integrated temperature monitor, which eliminates the need for an external temperature sensor.

Working Principle of IR3897MTR1PBF

The IR3897MTR1PBF utilizes pulse width modulation (PWM) to regulate the output voltage of the DC-DC switching regulator. It has two regulated output voltages, 5 V and 12 V, which can be switched using the PWM signal from the microcontroller. The pulse width of the PWM signal is adjusted based on the target output voltage. This is done by sensing the feedback voltage at the output, and then adjusting the duty cycle of the PWM signal accordingly.

The IR3897MTR1PBF also includes a frequency modulation feature. This allows the frequency of the PWM signal to be changed in order to provide higher efficiency and improved noise control. The frequency shift is accomplished by changing the reference voltage of the comparator that generates the PWM signal.

In addition to its voltage regulation capabilities, the IR3897MTR1PBF also includes several safety features that protect it from over temperature, short circuit, and over voltage conditions. The device will shut down when the output voltage exceeds a certain level, and will also shut down when the input voltage falls below a certain level. This provides increased safety and reliability for the system.

The IR3897MTR1PBF is suitable for a wide range of applications, including DC-DC converters, automobiles and industrial systems. It provides high efficiency, low switching losses and excellent noise performance for these types of applications.

The specific data is subject to PDF, and the above content is for reference