OHD3-85B Product Overview

Introduction

The OHD3-85B is a versatile electronic component that belongs to the category of voltage regulators. This device is widely used in various electronic applications to regulate and stabilize voltage levels, ensuring consistent and reliable power supply to connected circuits and components.

Basic Information Overview

• Category: Voltage Regulator
• Use: Stabilizing and regulating voltage levels in electronic circuits
• Characteristics: High precision, low dropout voltage, thermal shutdown protection
• Package: TO-220, TO-252, TO-263
• Essence: Ensuring stable and regulated power supply
• Packaging/Quantity: Typically available in reels or tubes containing multiple units

Specifications

The OHD3-85B voltage regulator is designed to operate within the following specifications: - Input Voltage Range: 4.5V to 28V - Output Voltage Range: 1.25V to 20V - Maximum Output Current: 3A - Dropout Voltage: 0.45V at 3A - Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The OHD3-85B features a standard pin configuration with input, output, and ground pins. The pinout configuration is as follows: - Pin 1: Input Voltage (VIN) - Pin 2: Ground (GND) - Pin 3: Output Voltage (VOUT)

Functional Features

• High Precision: Provides accurate and stable output voltage regulation
• Low Dropout Voltage: Minimizes power loss and heat dissipation
• Thermal Shutdown Protection: Safeguards the regulator from overheating

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
• May require additional heat sinking for high current applications

Working Principles

The OHD3-85B utilizes a feedback control mechanism to maintain the output voltage at a constant level, regardless of variations in the input voltage or load conditions. This is achieved through internal circuitry that adjusts the output based on the comparison between the actual output voltage and a reference voltage.

Detailed Application Field Plans

The OHD3-85B finds extensive use in various electronic systems and devices, including: - Power supplies - Battery charging circuits - Automotive electronics - Industrial control systems - LED lighting applications

Detailed and Complete Alternative Models

For applications requiring different specifications or performance characteristics, alternative models to consider include: - LM317 - LM7805 - LT1083 - LM2940

In conclusion, the OHD3-85B voltage regulator offers precise and reliable voltage regulation, making it an essential component in numerous electronic applications. Its wide input voltage range and thermal protection features make it suitable for diverse usage scenarios, while alternative models provide flexibility for specific application requirements.

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