Overview
The TPA3111D1PWP is a 10-W, efficient, Class-D audio power amplifier produced by Texas Instruments. This device is designed to drive a bridge-tied speaker and features advanced EMI suppression technology, allowing the use of inexpensive ferrite bead filters at the outputs while meeting EMC requirements. The amplifier includes the SpeakerGuard™ speaker protection system, which comprises an adjustable power limiter and a DC detection circuit. This ensures robust protection against various faults, including input capacitor damage and shorts. The high efficiency of the TPA3111D1PWP, exceeding 90%, eliminates the need for an external heat sink during normal operation.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Power | 10 W | - |
| Load Resistance | 4 Ω to 8 Ω | - |
| Supply Voltage Range | 8 V to 26 V | V |
| Efficiency | > 90% | - |
| Operating Temperature Range | -40°C to 85°C | °C |
| Package Type | HTSSOP (28 pins) | - |
| Package Size | 4.4 mm x 9.7 mm | mm |
| Quiescent Supply Current | 20 mA (typical) | mA |
| THD+N | 0.1% to 10% (depending on conditions) | - |
| Gain Settings | Four selectable, fixed gain settings | - |
Key Features
- Filter-free operation, reducing the need for external filters.
- SpeakerGuard™ speaker protection system with adjustable power limiter and DC detection circuit.
- Flow-through pinout 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 for improved signal quality.
- High efficiency (>90%) eliminating the need for an external heat sink.
- Comprehensive EMI suppression technology.
Applications
- Televisions
- Monitors and laptops
- Consumer audio equipment
- Car audio systems
- Portable audio devices
Q & A
- Q: What is the maximum output power of the TPA3111D1PWP?
A: The TPA3111D1PWP can deliver up to 10 W into an 8-Ω load at 10% THD+N from a 12-V supply.
- Q: What is the operating temperature range of the TPA3111D1PWP?
A: The operating temperature range is -40°C to 85°C.
- Q: What type of protection does the TPA3111D1PWP offer?
A: The TPA3111D1PWP features SpeakerGuard™ speaker protection, including an adjustable power limiter and DC detection circuit, as well as robust short-circuit and thermal protection with auto-recovery.
- Q: What is the package type and size of the TPA3111D1PWP?
A: The TPA3111D1PWP comes in a HTSSOP package with 28 pins, measuring 4.4 mm x 9.7 mm.
- Q: Does the TPA3111D1PWP require an external heat sink?
A: No, due to its high efficiency (>90%), the TPA3111D1PWP does not require an external heat sink for normal operation.
- Q: What is the supply voltage range for the TPA3111D1PWP?
A: The supply voltage range is from 8 V to 26 V.
- Q: What types of gain settings are available on the TPA3111D1PWP?
A: The TPA3111D1PWP offers four selectable, fixed gain settings.
- Q: Is the TPA3111D1PWP RoHS compliant?
A: Yes, the TPA3111D1PWP is RoHS compliant.
- Q: What kind of input does the TPA3111D1PWP support?
A: The TPA3111D1PWP supports differential analog inputs.
- Q: Can the TPA3111D1PWP drive low impedance speakers?
A: Yes, the TPA3111D1PWP can drive mono speakers as low as 4 Ω.
