MB39A123PMT-G-BNDE1

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The MB39A123PMT-G-BNDE1 is a DC/DC switching voltage regulator controller; it belongs to the PMIC (Power Management ICs) category and is best suited to DC/DC voltage regulator controllers. This regulator design is dependant on pulse width modulation (PWM) and can change the voltage output with a programmable controller option. While using this controller, an external power MOSFET or P-Channel MOSFET (PMOS) is used as a switching device to control the output current.

Features

The MB39A123PMT-G-BNDE1 benefits from a range of features that make it an attractive choice for various application types. First, this voltage regulator is designed with a wide input voltage range from 5V up to 24V, making it a very versatile product. This is because it can be used in a wide number of applications and also provides efficient power management even at higher voltages. Additionally, the MB39A123PMT-G-BNDE1 features an internal linear regulator which prevents possible overvoltage and undervoltage output conditions; this ensures that the input and output signals remain stable and the output voltage remains at the specified level.

One of the main advantages of this regulator is the high efficiency rating; a 30% conversion efficiency gained at lower duty cycle regulations. The high efficiency rating makes the product easier to use and more cost-effective when compared to other regulators. Additionally, it features a low standby power rating, meaning that it can remain in standby mode for a long period of time if required, reducing the amount of energy wasted. It also comes with a V-I limiter feature set, allowing the user to set a limit on the total input power, preventing any overloading of the device.

Working Principle

The MB39A123PMT-G-BNDE1 works on the principle of pulse width modulation (PWM). This involves the application of a train of pulses to the load, where each pulse has a certain width, known as the “duty cycle”. By varying the width of the pulse, the output voltage of the regulator can be adjusted. The controller itself is divided into two main parts: the main control and the PWM control. The main control monitors the voltage of the input power supply and decides when to turn the PWM circuit on and off. The PWM circuit is the other main section of the controller, which is responsible for taking the input signal, modulating it and then controlling the P-Channel MOSFET.

The actual switching of the P-Channel MOSFET depends on the duty cycle of the PWM circuit, and this determines the output voltage. This PWM circuit is responsible for taking the input signal and modulating it so that it is converted into a PWM signal. The frequency of the PWM signal must be set so that it does not cause noise from the controller, and this is done by adjusting the resistance of the load.

Application Fields

The MB39A123PMT-G-BNDE1 can be used in a range of applications; its wide input voltage range, low power rating and efficiency mean that it is ideally suited for a wide variety of applications. Its ability to control the output voltage in a dependable and reliable manner make it an attractive option for high power applications. It is ideal for use as a DC/DC converter in car power systems, industrial automation systems, portable devices and embedded systems, as well as many other areas.

It can be used as an efficient power conservator, ensuring the output voltage remains constant, even when a fluctuating voltage is supplied at the input. This is ideal for situations such as car power systems, where the input voltage might fluctuate and the output voltage needs to remain constant for the various components to function correctly.

Conclusion

The MB39A123PMT-G-BNDE1 is a highly efficient and reliable voltage regulator controller, making it suitable for a range of applications. Its use of pulse width modulation allows it to control the output voltage with a dependable and reliable manner. Additionally, its wide input voltage range also makes it a versatile product when dealing with applications that require an accurate voltage output. Finally, due to its high efficiency ratings, low power consumption and V-I limiter set, it ensures that this controller is an attractive choice for various types of applications.

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