NJM79L09A

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

The NJM79L09A is a voltage regulator utilizing a three terminal fixed output voltage architecture engineered to provide 9V power applications. This voltage regulator delivers excellent linear current limiting and thermal overload protection features, ensuring that the circuit is protected from current vapour.

NJM79L09A belongs to the Linear Voltage Regulators family which are used to maintain a predetermined output voltage at a predetermined current level. These regulators are generally enabled for regulating output without requiring any external components. The linear regulator has the ability to stabilize output voltage to within a few millivolts of the reference voltage.

Working Principle of the NJM79L09A

The main purpose of the NJM79L09A is to maintain a stable output voltage even when input voltage is highly variable. It uses an internal feedback circuit to compare the output voltage to its internal reference voltage. The output voltage is maintained by amplifying the difference between these two signals. This amplified signal is then used in a feedback loop to control the voltage regulator’s output.

The NJM79L09A consists of an error amplifier, current limiter, reference voltage, amplifier, and output driver. The error amplifier is used to compare the output voltage to its reference voltage. If the output voltage is too high, the error amplifier increases the current flowing through the current limiting and reference voltage amplifiers. Conversely, if the output voltage is too low, the current flowing through the current limiting and reference voltage amplifiers decreases.

The reference voltage amplifier is used to provide a stable reference voltage. It keeps the output voltage constant even when the input voltage changes. The current limiter is used to restrict the maximum output current, thus protecting the circuit from current overloads. The output driver is used to control the output voltage. It takes the output of the error amplifier and adjusts the output voltage to the desired value.

NJM79L09A Application Field

The NJM79L09A is typically used in a variety of fixed 9V applications such as positive voltage regulators, adjustable voltage regulators, or current limiters. Its excellent linear current limiting and thermal overload protection makes it ideal for use in applications where high current draw or overloads may occur. It is also suitable for applications where heat dissipation is a factor.

The NJM79L09A is commonly used in power supplies, laboratory power supplies, industrial instrumentation, and other high-precision circuits. It can be used to power audio amplifiers, radio receivers, audio players, and other electronic components. Its adjustable voltage range enables its use in portable equipment, medical applications, and low-power applications.

In summary, the NJM79L09A is an ideal 3-terminal linear voltage regulator that offers reliable output and high current limiting capability, making it an excellent choice for a variety of power applications. Its adjustable voltage range also allows it to be used in various systems, making it a versatile and cost-effective option for sensing and power management applications.

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