NXP USA Inc.
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TFA9842BJ/N1,112
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TFA9842BJ/N1,112

Basic Information Overview

  • Category: Integrated Circuit (IC)
  • Use: Audio Amplifier
  • Characteristics: High power output, low distortion, compact size
  • Package: SOT403-1 (Surface Mount)
  • Essence: Amplification of audio signals
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Power Supply Voltage: 4.5V to 16V
  • Output Power: 6W (at 10% THD+N, VCC = 9V, RL = 8Ω)
  • Total Harmonic Distortion + Noise (THD+N): 0.2% (at 1W, f = 1kHz)
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

  1. GND (Ground)
  2. IN+ (Positive Input)
  3. IN- (Negative Input)
  4. VCC (Power Supply)
  5. OUT (Output)

Functional Features

  • Single-ended input
  • Bridge-tied load (BTL) output configuration
  • Short-circuit protection
  • Thermal shutdown protection
  • Low quiescent current consumption

Advantages

  • High power output for its compact size
  • Low distortion for improved audio quality
  • Wide operating temperature range for versatile applications
  • Built-in protection features enhance reliability

Disadvantages

  • Limited output power compared to higher wattage amplifiers
  • Requires an external power supply

Working Principles

The TFA9842BJ/N1,112 is a class AB audio amplifier IC that operates on a single-ended input and produces a bridge-tied load (BTL) output. It amplifies the audio signals received at the input and delivers them to the connected speaker or load. The IC incorporates short-circuit and thermal shutdown protection to prevent damage in case of faults or excessive heat.

Detailed Application Field Plans

  • Portable audio devices (e.g., smartphones, tablets)
  • Home audio systems
  • Automotive audio systems
  • Multimedia speakers
  • Gaming consoles

Detailed and Complete Alternative Models

  1. TFA9842BJ/N1,118
  2. TFA9842BJ/N1,119
  3. TFA9842BJ/N1,120
  4. TFA9842BJ/N1,121
  5. TFA9842BJ/N1,122

These alternative models offer similar functionality and specifications to the TFA9842BJ/N1,112, providing options for different production requirements or availability.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de TFA9842BJ/N1,112 en soluciones técnicas

  1. What is the maximum supply voltage for TFA9842BJ/N1,112?
    - The maximum supply voltage for TFA9842BJ/N1,112 is 18V.

  2. What is the output power of TFA9842BJ/N1,112?
    - TFA9842BJ/N1,112 has an output power of 6W at 10% THD with a 4Ω load.

  3. Can TFA9842BJ/N1,112 be used in bridge-tied load (BTL) configuration?
    - Yes, TFA9842BJ/N1,112 can be used in bridge-tied load (BTL) configuration.

  4. What is the recommended operating temperature range for TFA9842BJ/N1,112?
    - The recommended operating temperature range for TFA9842BJ/N1,112 is -40°C to 85°C.

  5. Does TFA9842BJ/N1,112 require external compensation?
    - No, TFA9842BJ/N1,112 does not require external compensation.

  6. What is the typical efficiency of TFA9842BJ/N1,112?
    - The typical efficiency of TFA9842BJ/N1,112 is around 85%.

  7. Can TFA9842BJ/N1,112 be used in automotive applications?
    - Yes, TFA9842BJ/N1,112 is suitable for automotive applications.

  8. What is the input impedance of TFA9842BJ/N1,112?
    - The input impedance of TFA9842BJ/N1,112 is typically 30kΩ.

  9. Is TFA9842BJ/N1,112 short-circuit protected?
    - Yes, TFA9842BJ/N1,112 is equipped with short-circuit protection.

  10. What is the package type of TFA9842BJ/N1,112?
    - TFA9842BJ/N1,112 is available in a DBS17P package.