Overview
The TDA8954J/N1,112, produced by NXP USA Inc., is a high-efficiency Class D audio power amplifier integrated circuit. This component is designed to deliver high power output with low power dissipation, making it suitable for various audio applications. It 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 1 × 420 W into an 8 Ω load in mono Bridge-Tied Load (BTL) mode. The amplifier is known for its high efficiency, achieving approximately 93% efficiency into a 4 Ω load, and offers audiophile sound quality comparable to Class AB amplification.
Key Specifications
| Specification | Value |
|---|---|
| Output Power (Stereo SE) | 2 × 210 W into 4 Ω load |
| Output Power (Mono BTL) | 1 × 420 W into 8 Ω load |
| Efficiency | Approximately 93% into 4 Ω load |
| Supply Voltage Range | ±12.5 V to ±42.5 V |
| Quiescent Current | Low quiescent current consumption |
| Gain | 30 dB in SE, 36 dB in BTL |
| Pulse-Width Modulation Frequency | Variable, dependent on application |
| Thermal Protection | Thermal FoldBack (TFB) and Overtemperature Protection (OTP) |
| Diagnostic Pins | Two diagnostic pins for monitoring TFB and protection status |
| Package Type | 24-HSOP |
Key Features
- High-efficiency Class D operation with low power dissipation
- Advanced thermal protection strategy including Thermal FoldBack (TFB) and Overtemperature Protection (OTP)
- Low quiescent current consumption
- Fixed gain of 30 dB in SE and 36 dB in BTL applications
- Fully short-circuit proof across load
- BD modulation in BTL configuration
- Clock protection and advanced protection strategy including voltage protection and output current limiting
- Two diagnostic pins for monitoring the status of TFB and protection functions
Applications
The TDA8954J/N1,112 is suitable for a variety of high-power audio applications, including:
- Home audio systems
- Car audio systems
- Professional audio equipment
- Public address systems
- High-power portable audio devices
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 in mono mode?
In mono Bridge-Tied Load (BTL) mode, it can deliver up to 1 × 420 W into an 8 Ω load. - What is the efficiency of the TDA8954J/N1,112?
The efficiency is approximately 93% into a 4 Ω load. - What is the supply voltage range for the TDA8954J/N1,112?
The supply voltage range is from ±12.5 V to ±42.5 V. - Does the TDA8954J/N1,112 have thermal protection?
Yes, it features an advanced thermal protection strategy including Thermal FoldBack (TFB) and Overtemperature Protection (OTP). - What diagnostic features are available on the TDA8954J/N1,112?
It includes two diagnostic pins for monitoring the status of TFB and protection functions. - What is the package type of the TDA8954J/N1,112?
The package type is 24-HSOP. - Is the TDA8954J/N1,112 short-circuit proof?
Yes, it is fully short-circuit proof across the load. - What kind of modulation does the TDA8954J/N1,112 use in BTL configuration?
In BTL configuration, it uses BD modulation. - Does the TDA8954J/N1,112 have clock protection?
Yes, it includes clock protection.
