TSOP38540

Product Overview

The TSOP38540 belongs to the category of infrared receivers. It is commonly used in remote control systems for consumer electronics such as televisions, DVD players, and air conditioners. The TSOP38540 is known for its high sensitivity, low power consumption, and compact package. It is typically available in a standard 3-pin epoxy package and is essential for receiving infrared signals from remote controls.

Basic Information

• Category: Infrared Receiver
• Use: Remote Control Systems
• Characteristics: High Sensitivity, Low Power Consumption
• Package: Standard 3-Pin Epoxy Package
• Essence: Infrared Signal Reception
• Packaging/Quantity: Typically Sold in Reels or Tubes

Specifications

• Carrier Frequency: 38 kHz
• Supply Voltage: 2.5 V to 5.5 V
• Supply Current: 350 µA
• Operating Temperature: -25°C to +85°C
• Output: Active Low
• Detection Range: 45 meters

Detailed Pin Configuration

1. OUT (Output)
2. GND (Ground)
3. VS (Supply Voltage)

Functional Features

• High Immunity Against Ambient Light
• Improved Shielding Against Electrical Field Disturbances
• Photodetector and Preamplifier in One Package
• Internal Filter for PCM Frequency
• TTL and CMOS Compatibility

Advantages

• High Sensitivity
• Wide Supply Voltage Range
• Compact Size
• Easy Integration with Remote Control Systems

Disadvantages

• Limited Detection Range
• Susceptible to Interference from Strong Light Sources

Working Principles

The TSOP38540 operates based on the principle of detecting modulated infrared signals. When an infrared signal at the carrier frequency of 38 kHz is received, the internal photodetector converts it into an electrical signal, which is then amplified and output through the OUT pin.

Detailed Application Field Plans

The TSOP38540 is widely used in various consumer electronic devices that rely on remote control functionality. It is commonly integrated into televisions, audio equipment, air conditioners, and other home appliances. Additionally, it finds applications in industrial automation systems where remote control is essential for operation.

Detailed and Complete Alternative Models

• TSOP38238: Similar characteristics with a different carrier frequency
• TSOP38438: Higher detection range and improved immunity to ambient light
• TSOP38738: Enhanced sensitivity and wider operating temperature range

In conclusion, the TSOP38540 is a crucial component in remote control systems, offering high sensitivity and low power consumption. Its compact size and compatibility with various electronic devices make it a popular choice for manufacturers seeking reliable infrared receivers.

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