DEMD48-7 Product Overview

Introduction

DEMD48-7 is a versatile electronic component that belongs to the category of voltage regulators. This product is widely used in various electronic devices and systems to ensure stable and regulated power supply. In this entry, we will provide an overview of DEMD48-7, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

• Category: Voltage Regulator
• Use: To regulate and stabilize voltage in electronic devices and systems
• Characteristics: High precision, low dropout voltage, thermal shutdown protection
• Package: TO-220
• Essence: Regulating voltage to ensure stable operation of electronic components
• Packaging/Quantity: Typically available in reels or tubes containing multiple units

Specifications

• Input Voltage Range: 4.5V to 40V
• Output Voltage Range: 1.25V to 37V
• Output Current: Up to 3A
• Dropout Voltage: 1.5V at 3A
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The DEMD48-7 voltage regulator typically consists of three pins: 1. Input (VIN): Connects to the input voltage source 2. Ground (GND): Connected to the ground reference 3. Output (VOUT): Provides the regulated output voltage

Functional Features

• High Precision: Provides accurate and stable output voltage regulation
• Low Dropout Voltage: Ensures efficient operation even when the input voltage is close to the output voltage
• Thermal Shutdown Protection: Protects the device from overheating by shutting down when the temperature exceeds a safe threshold

Advantages and Disadvantages

Advantages

• Reliable voltage regulation
• Wide input voltage range
• Thermal protection for enhanced safety

Disadvantages

• Higher dropout voltage compared to some alternative models
• Limited maximum output current compared to higher-rated regulators

Working Principles

DEMD48-7 operates based on the principle of feedback control, where it compares the actual output voltage with a reference voltage and adjusts the output to maintain a stable voltage level. It utilizes internal circuitry to achieve precise regulation and protect against overcurrent and overtemperature conditions.

Detailed Application Field Plans

DEMD48-7 finds extensive use in various applications, including: - Power supplies for consumer electronics - Automotive electronics - Industrial control systems - Battery charging circuits - LED lighting systems

Detailed and Complete Alternative Models

Some alternative models to DEMD48-7 include: - LM317: A popular adjustable linear voltage regulator - LM7805: Fixed 5V regulator commonly used in electronic circuits - LT1083: High-current adjustable voltage regulator suitable for power supply applications

In conclusion, DEMD48-7 is a reliable voltage regulator with precise regulation, thermal protection, and wide application versatility. While it has certain limitations, its performance and features make it a valuable component in various electronic systems.

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