NJM7808DL1A

Product Overview

Category

NJM7808DL1A belongs to the category of voltage regulators.

Use

It is used to regulate and stabilize the output voltage in electronic circuits.

Characteristics

• Input Voltage Range: 10V to 35V
• Output Voltage: +8V
• Maximum Output Current: 1A
• Low Dropout Voltage: 2V (typical)
• Thermal Shutdown Protection
• Short Circuit Protection
• Overcurrent Protection

Package

NJM7808DL1A comes in a TO-252 package, also known as DPAK (Plastic Package).

Essence

The essence of NJM7808DL1A is to provide a stable and regulated +8V output voltage for various electronic applications.

Packaging/Quantity

It is typically available in reels or tubes with a quantity of 2500 units per reel/tube.

Specifications

• Input Voltage Range: 10V to 35V
• Output Voltage: +8V
• Output Current: Up to 1A
• Dropout Voltage: 2V (typical)
• Line Regulation: ±0.2% (typical)
• Load Regulation: ±0.4% (typical)
• Quiescent Current: 5mA (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

NJM7808DL1A has three pins:

1. Pin 1: Input (VIN) - Connects to the input voltage source.
2. Pin 2: Ground (GND) - Connected to the ground reference.
3. Pin 3: Output (VOUT) - Provides the regulated +8V output voltage.

Functional Features

• Voltage Regulation: NJM7808DL1A ensures a stable output voltage of +8V regardless of input voltage fluctuations.
• Thermal Shutdown Protection: It incorporates a thermal shutdown feature to prevent overheating and damage.
• Short Circuit Protection: The device is designed to protect against short circuits, ensuring the safety of the circuit and components.
• Overcurrent Protection: NJM7808DL1A safeguards against excessive current flow, preventing damage to the regulator.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows flexibility in various applications.
• Low dropout voltage minimizes power dissipation.
• Thermal shutdown protection prevents overheating.
• Short circuit and overcurrent protection enhance circuit safety.

Disadvantages

• Limited output current capacity (up to 1A).
• Requires external heat sink for high-power applications.

Working Principles

NJM7808DL1A operates based on the principle of linear voltage regulation. It uses a series pass transistor to regulate the output voltage. The internal circuitry compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain a constant output voltage of +8V.

Detailed Application Field Plans

NJM7808DL1A finds applications in various electronic systems, including but not limited to: - Power supply units - Battery chargers - Audio amplifiers - Industrial control systems - Automotive electronics - Instrumentation equipment

Detailed and Complete Alternative Models

Some alternative models that can be used as substitutes for NJM7808DL1A are: - LM7808 - MC7808 - UA7808 - L78M08 - KA7808

These models offer similar functionality and characteristics, providing a regulated +8V output voltage.

In conclusion, NJM7808DL1A is a voltage regulator that ensures a stable +8V output voltage for various electronic applications. Its features include thermal shutdown protection, short circuit protection, and overcurrent protection. While it has limitations in terms of output current capacity, it offers advantages such as a wide input voltage range and low dropout voltage. It finds applications in power supply units, audio amplifiers, and other electronic systems. Alternative models like LM7808 and MC7808 can be used as substitutes for NJM7808DL1A.