Overview
The TPA3112D1PWPR is a high-efficiency, 25-W mono Class-D audio power amplifier manufactured by Texas Instruments. This amplifier is designed to drive bridge-tied speakers and is notable for its filter-free operation and integrated SpeakerGuard™ speaker protection system. The TPA3112D1PWPR offers advanced EMI suppression technology, allowing the use of inexpensive ferrite bead filters at the outputs while meeting EMC requirements. It is ideal for various audio applications requiring high efficiency, low distortion, and minimal external components.
Key Specifications
| Parameter | Description |
|---|---|
| Maximum Output Power | 25 W into an 8-Ω load at < 0.1% THD+N from a 24-V supply |
| Supply Voltage Range | 8 to 26 V |
| Efficiency | 94% efficient Class-D operation into 8-Ω load |
| Package Type | HTSSOP (PWP) with 28 pins |
| Operating Temperature Range | -40°C to 85°C |
| Load Compatibility | Can drive a mono speaker as low as 4Ω |
| Protection Features | Short-circuit protection, thermal protection with auto-recovery, and DC detection circuit |
| Gain Settings | Four selectable, fixed gain settings |
Key Features
- Filter-free operation
- SpeakerGuard™ speaker protection system with adjustable power limiter and DC detection circuit
- High efficiency (> 90%) eliminates the need for an external heat sink
- Wide supply voltage range (8 to 26 V)
- Flow through pin out for easy board layout
- Robust pin-to-pin short circuit protection and thermal protection with auto-recovery option
- Excellent THD+N and pop-free performance
- Differential inputs
Applications
The TPA3112D1PWPR is commonly used in various audio applications such as:
- Stereo systems
- Home theaters
- Soundbars
- Portable speakers
- Automotive audio systems
- Gaming consoles
- Multimedia devices
Q & A
- Q: What is the maximum output power of the TPA3112D1PWPR?
A: The TPA3112D1PWPR has a maximum output power of 25 W into an 8-Ω load at < 0.1% THD+N from a 24-V supply.
- Q: What is the supply voltage range for the TPA3112D1PWPR?
A: The supply voltage range for the TPA3112D1PWPR is from 8 to 26 V.
- Q: What type of protection does the TPA3112D1PWPR offer?
A: The TPA3112D1PWPR offers short-circuit protection, thermal protection with auto-recovery, and a DC detection circuit.
- Q: What is the operating temperature range of the TPA3112D1PWPR?
A: The operating temperature range of the TPA3112D1PWPR is from -40°C to 85°C.
- Q: Can the TPA3112D1PWPR drive low-impedance speakers?
A: Yes, the TPA3112D1PWPR can drive a mono speaker as low as 4Ω.
- Q: What is the efficiency of the TPA3112D1PWPR?
A: The TPA3112D1PWPR has an efficiency of 94% in Class-D operation into an 8-Ω load.
- Q: Does the TPA3112D1PWPR require an external heat sink?
A: No, the high efficiency of the TPA3112D1PWPR eliminates the need for an external heat sink.
- Q: What type of package does the TPA3112D1PWPR come in?
A: The TPA3112D1PWPR comes in an HTSSOP (PWP) package with 28 pins.
- Q: What is the purpose of the SpeakerGuard™ system in the TPA3112D1PWPR?
A: The SpeakerGuard™ system includes an adjustable power limiter and a DC detection circuit to protect the speaker.
- Q: Where can I find detailed information about the TPA3112D1PWPR?
A: Detailed information can be found in the datasheet available on Texas Instruments' website or through authorized distributors like Ovaga and LCSC.
