NCV3843BVDR2

Frequency - Switching:	500kHz
Base Part Number:	NCV3843
Supplier Device Package:	14-SOIC
Package / Case:	14-SOIC (0.154", 3.90mm Width)
Operating Temperature:	-40°C ~ 125°C (TJ)
Control Features:	Frequency Control
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	No
Duty Cycle (Max):	96%
Series:	Automotive, AEC-Q100
Voltage - Supply (Vcc/Vdd):	7.6 V ~ 30 V
Output Phases:	1
Number of Outputs:	1
Topology:	Flyback
Output Configuration:	Positive, Isolation Capable
Function:	Step-Up/Step-Down
Output Type:	Transistor Driver
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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NCV3843BVDR2 –DC-DC Switching Controller Application and Working Principle

The NCV3843BVDR2 is a DC-DC switching controller that is used for DC-DC converters and applications for distributed power architectures. The device features a wide range of features, including differential input voltage sense, output current limitation, and adjustable current limit. This article focuses on the application field, and working principle of the NCV3843BVDR2 DC-DC switching controller.

Applications of the NCV3843BVDR2

The NCV3843BVDR2 is used in distributed power architectures where compact circuit designs are required. Its differential input voltage sensing allows for the use in applications where extended input voltage range is necessary. This can be the case when power must be distributed to multiple sources while providing efficient and reliable power conversion.The NCV3843BVDR2 can also be used in step-down DC/DC converters. In this application, the device can provide consistent output voltage to a load despite varying input voltage. This is especially useful for applications where power distribution must take place on a larger scale, as it can provide an efficient solution for providing energy to multiple systems that require a variety of voltages for their internal use.The NCV3843BVDR2 can also be used in applications that require variable voltage and current such as battery-powered systems. The device\'s adjustable current limit allows it to be used in applications such as portable electronics, where the current drawn by the system must be limited to conserve power.

Working Principle of the NCV3843BVDR2

The NCV3843BVDR2 is a DC-DC switching controller that utilizes differential input voltage sensing to regulate its output voltage. The device is based on a buck-boost regulator topology, which means that it will take a higher input voltage and reduce it to a lower output voltage. It also has a feature that allows the user to adjust the current limit. This is important in applications such as battery-powered systems, as the system needs to be able to conserve power in order to maximize battery life.The process begins with the input voltage being applied to the NCV3843BVDR2 DC-DC switching controller. The controller then responds to the voltage by varying the duty cycle of the switch to regulate the output voltage. The device features a sensing circuit that detects the input voltage, and adjusts the duty cycle accordingly. This ensures that the output voltage is consistent and does not fluctuate significantly when the input voltage varies.The device is further equipped with an adjustable current limit feature. This allows the user to set the maximum current that the system can draw. This is important in battery-powered systems, as it allows the system to conserve power by limiting the current draw to a necessary level.

Conclusion

The NCV3843BVDR2 is a DC-DC switching controller that is used for DC-DC converters and distributed power architectures. Its differential input voltage sensing and adjustable current limit enable the device to be used in a wide range of applications, including step-down DC/DC converters, battery-powered systems, and distributed power systems. The device utilizes a buck-boost regulator topology to reduce the input voltage to a lower output voltage, and its sensing circuit allows for the regulation of the output voltage despite varying input voltages. The adjustable current limit allows for the system to conserve power in battery-powered systems.

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