L7908ACD2T-TR

Product Overview

Category

L7908ACD2T-TR belongs to the category of voltage regulators.

Use

It is primarily used for regulating and stabilizing voltage in electronic circuits.

Characteristics

• Input Voltage Range: -35V to -10V
• Output Voltage: -8V
• Maximum Output Current: 1.5A
• Dropout Voltage: 2V
• Operating Temperature Range: -40°C to +125°C
• Package Type: D2PAK (TO-263)
• Mounting Style: Surface Mount
• RoHS Compliant: Yes

Packaging/Quantity

The L7908ACD2T-TR voltage regulator is typically packaged in reels or tubes, containing a specific quantity per package. The exact packaging and quantity may vary depending on the manufacturer and supplier.

Specifications

• Input Voltage Range: -35V to -10V
• Output Voltage: -8V
• Output Current: Up to 1.5A
• Dropout Voltage: 2V
• Line Regulation: ±0.3%
• Load Regulation: ±0.5%
• Quiescent Current: 6mA
• Thermal Shutdown Protection: Yes
• Short Circuit Protection: Yes
• Package Type: D2PAK (TO-263)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The L7908ACD2T-TR voltage regulator has three pins: 1. Vin (Input): Connects to the input voltage source. 2. GND (Ground): Common ground reference. 3. Vout (Output): Provides the regulated output voltage.

Functional Features

• Regulates and stabilizes the output voltage to a constant -8V.
• Provides protection against thermal shutdown and short circuits.
• Offers good line and load regulation for stable performance.
• Suitable for a wide range of applications requiring a negative voltage supply.

Advantages

• High output current capability of up to 1.5A.
• Wide input voltage range allows flexibility in various applications.
• Thermal shutdown protection prevents damage due to excessive heat.
• Short circuit protection safeguards the regulator and connected components.

Disadvantages

• Dropout voltage of 2V may limit its use in low voltage applications.
• Quiescent current consumption of 6mA may be relatively high for power-sensitive designs.

Working Principles

The L7908ACD2T-TR operates based on the principle of linear voltage regulation. It uses a series pass transistor to regulate the output voltage by adjusting the resistance between the input and output terminals. The internal circuitry compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain a constant -8V output.

Detailed Application Field Plans

The L7908ACD2T-TR voltage regulator finds applications in various fields, including: 1. Industrial automation systems 2. Power supplies for audio amplifiers 3. Automotive electronics 4. Battery charging circuits 5. Negative voltage biasing in analog circuits

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to L7908ACD2T-TR are: 1. LM7908: Similar specifications and pin configuration, available in different package types. 2. MC79L08: Comparable characteristics, suitable for low-power applications. 3. LT1084: Higher output current capability, adjustable output voltage.

In conclusion, the L7908ACD2T-TR voltage regulator is a reliable component used for regulating and stabilizing voltage in electronic circuits. Its features, advantages, and application versatility make it a popular choice in various industries.