NJM723M

Product Overview

Category: Integrated Circuit (IC)
Use: Voltage Regulator
Characteristics: High precision, adjustable output voltage, low dropout voltage, current limiting, thermal shutdown protection
Package: DIP-14 (Dual In-line Package with 14 pins)
Essence: The NJM723M is a versatile voltage regulator IC that provides stable and adjustable output voltage for various electronic applications.
Packaging/Quantity: Available in reels or tubes, typically sold in quantities of 100 or more.

Specifications

Input Voltage Range: 2.5V to 40V
Output Voltage Range: 1.25V to 37V
Output Current: Up to 150mA
Dropout Voltage: 0.6V typical at 100mA load
Line Regulation: 0.01%/V
Load Regulation: 0.1%/mA
Quiescent Current: 10mA typical
Operating Temperature Range: -40°C to +125°C

Pin Configuration

The NJM723M has a total of 14 pins arranged as follows:

```

| | | 1 7 14| | | | 2 6 13| | | | 3 5 12| | | | 4 8 11| |___________| ```

Vref: Reference Voltage Output
Vz: Zener Diode Connection
Vin: Input Voltage
GND: Ground
Vout: Output Voltage
Iadj: Adjustable Current
Cadj: Capacitor Adjust
Vcc: Supply Voltage
NC: No Connection
NC: No Connection
NC: No Connection
NC: No Connection
NC: No Connection
NC: No Connection

Functional Features

Adjustable Output Voltage: The NJM723M allows the user to set the desired output voltage within a wide range.
Current Limiting: Protects the circuit by limiting the maximum current that can be drawn from the regulator.
Thermal Shutdown Protection: Automatically shuts down the regulator if the temperature exceeds a safe limit, preventing damage to the IC.
Low Dropout Voltage: Provides a stable output voltage even when the input voltage is close to the desired output voltage.

Advantages and Disadvantages

Advantages: - High precision and stability - Wide input voltage range - Adjustable output voltage - Current limiting and thermal shutdown protection for enhanced safety - Low dropout voltage for efficient operation

Disadvantages: - Limited output current capacity (up to 150mA) - Requires external components for precise voltage adjustment

Working Principles

The NJM723M operates as a linear voltage regulator. It uses a feedback mechanism to maintain a constant output voltage regardless of variations in the input voltage or load conditions. By adjusting the reference voltage and using an error amplifier, it compares the actual output voltage with the desired voltage and adjusts the internal circuitry accordingly.

Detailed Application Field Plans

The NJM723M finds applications in various electronic systems where a stable and adjustable voltage supply is required. Some common application areas include:

Power supply circuits for microcontrollers and other digital ICs
Battery charging circuits
Audio amplifiers and preamplifiers
Instrumentation and measurement equipment
LED drivers
Automotive electronics
Industrial control systems

Detailed and Complete Alternative Models

LM317: A popular alternative with similar features and pin configuration.
LT1083: Higher current capacity alternative suitable for power-hungry applications.
LM7805: Fixed output voltage regulator alternative for 5V applications.
LM1117: Low dropout voltage regulator alternative for battery-powered devices.

These are just a few examples, and there are many other alternatives available in the market depending on specific requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací NJM723M v technických řešeních

Sure! Here are 10 common questions and answers related to the application of NJM723M in technical solutions:

Q: What is NJM723M? A: NJM723M is a voltage regulator and controller integrated circuit (IC) commonly used in various technical applications.
Q: What are the key features of NJM723M? A: The key features of NJM723M include adjustable output voltage, current limiting, thermal shutdown protection, and wide input voltage range.
Q: How can NJM723M be used as a voltage regulator? A: NJM723M can be configured as a voltage regulator by connecting external resistors and capacitors to set the desired output voltage and stability.
Q: Can NJM723M be used in power supply designs? A: Yes, NJM723M is commonly used in power supply designs to regulate and control the output voltage.
Q: Is NJM723M suitable for battery charging applications? A: Yes, NJM723M can be used in battery charging applications by adjusting the output voltage and current limit to match the battery requirements.
Q: Can NJM723M handle high currents? A: NJM723M has a maximum output current rating, so it is important to ensure that the load current does not exceed this limit.
Q: Does NJM723M have built-in protection features? A: Yes, NJM723M has built-in thermal shutdown protection, which prevents the IC from overheating and getting damaged.
Q: Can NJM723M be used in audio amplifier circuits? A: Yes, NJM723M can be used in audio amplifier circuits as a voltage regulator to provide stable power supply to the amplifier components.
Q: Are there any specific application notes or datasheets available for NJM723M? A: Yes, the manufacturer of NJM723M provides detailed datasheets and application notes that provide guidance on its usage in various technical solutions.
Q: Where can I purchase NJM723M ICs? A: NJM723M ICs can be purchased from electronic component suppliers, online marketplaces, or directly from the manufacturer's authorized distributors.

Please note that the answers provided here are general and may vary depending on the specific requirements and applications. It is always recommended to refer to the datasheet and consult with experts for accurate and detailed information.