LM2594HVN-3.3

Voltage - Output (Min/Fixed):	3.3V
Base Part Number:	LM2594
Supplier Device Package:	8-PDIP
Package / Case:	8-DIP (0.300", 7.62mm)
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	No
Frequency - Switching:	150kHz
Current - Output:	500mA
Voltage - Output (Max):	--
Series:	SIMPLE SWITCHER®
Voltage - Input (Max):	60V
Voltage - Input (Min):	4.5V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Obsolete
Packaging:	Tube

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

Introduction to LM2594HVN-3.3

The LM2594HVN-3.3, otherwise known as the National Semiconductor Switched Mode Power Supply (SMPS) controller, is an integrated circuit that is designed to regulate the output voltage from an input or power source. It has a wide operating range of up to 28 volts and is capable of supplying up to 5V and as low as 3.3V. The LM2594HVN-3.3 uses a wide range of technology in order to regulate and monitor input voltages, including low-voltage dropout (LDO) regulators, pulse-width modulated (PWM) controllers, as well as linear regulators. This SMPS controller is often used in power supply systems and power supply devices, but is also found in commercial and industrial applications.

LM2594HVN-3.3 Application Fields

The LM2594HVN-3.3 controller is ideal for a broad range of application fields, including in power supply systems and power supply devices. It has the capacity to provide level outputs for devices such as automotive products and other pressure-sensitive equipment such as test and measurement tools. It is also used in a range of devices that require tight control and monitoring of the output from an input or power source, such as computers and fax machines. Additionally, the LM2594HVN-3.3 is often applicable to switch mode power supplies, including DC-DC converters, and integrated motor control solutions - both of which are commonly used in automobiles, medical machines and segmented displays, which require a high voltage accuracy and frequency stability.

Working Principle of LM2594HVN-3.3

The LM2594HVN-3.3 controller works by regulating the output voltage of an input or power source. The controller is usually implemented in an open-loop or closed-loop control mode. In the open-loop mode, the controller directly switches on and off the load current. The load current is sensed by the controller and monitored through the sense resistor, which is typically located in the feedback loop. The resistive divider is connected to the input voltage and senses the input voltage. The controller occupies the voltage difference between the input voltage and the regulated output voltage in order to control the output current. In the closed-loop mode, the LM2594HVN-3.3 works using an external error amplifier. This type of operation is used when the output voltage needs to be regulated more exactly. The error amplifier is supplied with the input voltage on one side and the setpoint voltage on the other side. The setpoint voltage is the reference voltage against which the actual output voltage is compared and regulated. As soon as there is an error between the two voltages, the error amplifier will generate an output signal to the control circuit of the LM2594HVN-3.3, which corrects the output voltage.

Conclusion

The LM2594HVN-3.3 is a versatile and reliable SMPS controller capable of managing the output voltage from a power source. It is suitable for a wide range of applications, including industrial and commercial products, due to its excellent regulation and monitoring capabilities. The LM2594HVN-3.3 can be operated in both an open loop or closed loop control mode, depending on the precision required. The controller is typically implemented with the use of an error amplifier, which is connected to the input voltage and a setpoint voltage in order to control and regulate the output current.

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

Part Number	Manufacturer	Price	Quantity	Description