Overview
The TDA8954J/N1,112 is a high-efficiency Class D audio power amplifier produced by NXP USA Inc. This integrated circuit is designed to deliver high power output with low power dissipation, making it suitable for a variety of audio applications. The amplifier can operate in both stereo and mono configurations, providing up to 2 × 210 W into a 4 Ω load in stereo Single-Ended (SE) mode or up to 1 × 420 W into an 8 Ω load in mono Bridge-Tied Load (BTL) mode. It features a wide supply voltage range from ±12.5 V to ±42.5 V and low quiescent current consumption, enhancing its efficiency and reliability.
Key Specifications
| Parameter | Value | Description |
|---|---|---|
| Number of Channels | 2 | Stereo or Mono configuration |
| Output Power (SE) | 2 × 210 W | Into a 4 Ω load |
| Output Power (BTL) | 1 × 420 W | Into an 8 Ω load |
| Supply Voltage Range | ±12.5 V to ±42.5 V | VDDP1, VDDP2, and VDDA pins |
| Efficiency | ≈93 % into a 4 Ω load | Class D efficiency |
| Quiescent Current | Low | Enhanced power efficiency |
| Gain | 30 dB (SE), 36 dB (BTL) | Fixed gain settings |
| Package Type | DBS23P | 23-pin package |
| Thermal Protection | Thermal FoldBack (TFB) and Overtemperature Protection (OTP) | Advanced thermal protection strategy |
| Diagnostic Pins | DIAG1 and DIAG2 | For monitoring TFB and protection status |
Key Features
- High Efficiency: Class D efficiency of approximately 93% into a 4 Ω load, ensuring low power dissipation and high audio quality.
- Advanced Protection Strategy: Includes voltage protection, output current limiting, and Thermal FoldBack (TFB) with disable functionality to ensure reliable operation.
- Low Quiescent Current: Minimizes power consumption when the amplifier is in standby or idle mode.
- Wide Supply Voltage Range: Operates from ±12.5 V to ±42.5 V, providing flexibility in various audio systems.
- Diagnostic Capabilities: Two diagnostic pins (DIAG1 and DIAG2) for monitoring thermal and protection status.
- Short-Circuit Proof: Fully short-circuit proof across the load, enhancing reliability and safety).
Applications
The TDA8954J/N1,112 is suitable for a wide range of audio applications, including:
- Home Audio Systems: High-power amplifiers for home theaters and stereo systems.
- Professional Audio Equipment: Public address systems, stage monitors, and professional loudspeakers.
- Automotive Audio Systems: High-efficiency amplifiers for car audio systems.
- Industrial Audio Applications: Public address systems in industrial environments.
Q & A
- What is the maximum output power of the TDA8954J/N1,112 in stereo mode?
The TDA8954J/N1,112 can deliver up to 2 × 210 W into a 4 Ω load in stereo Single-Ended (SE) mode.
- What is the maximum output power of the TDA8954J/N1,112 in mono mode?
The TDA8954J/N1,112 can deliver up to 1 × 420 W into an 8 Ω load in mono Bridge-Tied Load (BTL) mode.
- What is the supply voltage range for the TDA8954J/N1,112?
The amplifier operates over a wide supply voltage range from ±12.5 V to ±42.5 V.
- What kind of thermal protection does the TDA8954J/N1,112 have?
The TDA8954J/N1,112 features Thermal FoldBack (TFB) and Overtemperature Protection (OTP) to prevent overheating.
- Is the TDA8954J/N1,112 short-circuit proof?
Yes, the amplifier is fully short-circuit proof across the load.
- What are the diagnostic capabilities of the TDA8954J/N1,112?
The amplifier has two diagnostic pins (DIAG1 and DIAG2) for monitoring thermal and protection status.
- What is the efficiency of the TDA8954J/N1,112?
The TDA8954J/N1,112 has a Class D efficiency of approximately 93% into a 4 Ω load.
- What is the package type of the TDA8954J/N1,112?
The amplifier is packaged in a DBS23P, which is a 23-pin package.
- Is the TDA8954J/N1,112 RoHS compliant?
Yes, the TDA8954J/N1,112 is compliant with EU RoHS directives.
- Where can I find additional documentation and support for the TDA8954J/N1,112?
Additional datasheets, footprints, and schematics can be found on the NXP Semiconductors website or through authorized distributors. For technical support, contact the customer support team of the distributor listing the product.
