NCV8508DW50

Current - Output:	250mA
Base Part Number:	NCV8508
Supplier Device Package:	16-SOIC
Package / Case:	16-SOIC (0.295", 7.50mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Temperature, Short Circuit
Control Features:	Enable, Reset, Watchdog
PSRR:	--
Current - Quiescent (Iq):	150µA
Series:	Automotive, AEC-Q100
Voltage Dropout (Max):	0.9V @ 150mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	5V
Voltage - Input (Max):	45V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tube

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NCV8508DW50 Application Field and Working Principle

NCV8508DW50 is a voltage regulator integrated circuit (IC) that falls into the category of linear voltage regulators. This device ensures stable, low noise and low output ripple power supplies. It delivers a maximum output current of 8 Amps with a standard 8-pin package, while providing excellent transient performance.The NCV8508DW50 voltage regulator is used in applications where precision, noise prevention and high efficiency are the utmost important factors. This includes power supplies for industrial applications, such as programmable logic controllers (PLCs), connected motors, home appliances and other electronic products.

Working Principle

The NCV8508DW50\'s main purpose is to regulate an unregulated voltage by converting it into a regulated output voltage. Its working principle is relatively simple. The voltage regulator receives an input voltage from an external circuit and has built-in circuitry that adjusts it to the desired output voltage. The regulator is capable of maintaining the output voltage in spite of variations in the input voltage. At the heart of the NCV8508DW50’s circuit are two transistors (Q1 and Q2) connected in the Darlington configuration. This configuration amplifies the voltage and current gain of the transistor. The transistors are used to control the output voltage by varying the resistance in the control loop. The control loop consists of an external sensing resistor (Rs) connected to the non-inverting input of the control circuit and an external feedback resistor (Rf) connected to the output of the IC. It also includes capacitors, resistors and an internal reference voltage that help ensure stability and accuracy.To ensure a precise output voltage, the sensing resistor and the feedback resistor must be chosen to meet the desired output voltage. The size of the sensing resistor and the feedback resistor are selected to maintain the desired output voltage. The NCV8508DW50 is designed with an over-temperature protection feature that disables the output when the device is exposed to extremely high external temperatures. It also includes over-voltage, under-voltage and reverse voltage protection to further prevent failsafe scenarios.Because the NCV8508DW50 is a linear voltage regulator, it is not a very efficient use of electric power. Heat generated is proportional to the output current and is dissipated as a result of inefficiencies in the regulator, thus increasing the system\'s power dissipation requirements. It is therefore necessary to choose an appropriate cooling system for applications using the NCV8508DW50.

Conclusion

The NCV8508DW50 is a linear voltage regulator designed for applications where precision, noise prevention and high efficiency are essential. It is capable of delivering a maximum output current of 8 Amps with a standard 8-pin package. The working principle of the NCV8508DW50 is relatively simple; an unregulated voltage is received from an external circuit and is regulated to the desired output voltage through the control loop. The output voltage is controlled by varying the resistance in the control loop, which is determined by the external sensing and feedback resistors. Heat generated is proportional to the output current and is dissipated as a result of inefficiencies in the regulator, thus increasing the system\'s power dissipation requirements. The NCV8508DW50 is equipped with several protection features to protect the device and the system in case of abnormal conditions.

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