Overview
The TPA3112D1PWP is a 25-W efficient, Class-D audio power amplifier designed by Texas Instruments. This component is optimized for driving bridge-tied speakers 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 to ensure robust speaker protection. With its high efficiency of over 90%, the TPA3112D1PWP eliminates the need for an external heat sink during music playback.
Key Specifications
| Specification | Value |
|---|---|
| Package | HTSSOP (PWP) with 28 pins |
| Operating Temperature Range | -40°C to 85°C |
| Supply Voltage Range | 8 V to 26 V |
| Output Power | 25 W into an 8-Ω load at < 0.1% THD+N from a 24-V supply |
| Efficiency | 94% efficient Class-D operation into an 8-Ω load |
| No. of Channels | 1 |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Moisture Sensitivity Level (MSL) | 3 |
| Peak Reflow Temperature | 260°C |
Key Features
- 25-W into an 8-Ω load at < 0.1% THD+N from a 24-V supply
- 20-W into a 4-Ω load at 10% THD+N from a 12-V supply
- 94% efficient Class-D operation into an 8-Ω load, eliminating the need for heat sinks
- Wide supply voltage range allows operation from 8 to 26 V
- Filter-free operation
- SpeakerGuard™ speaker protection includes adjustable power limiter and DC protection
- Flow through pin out facilitates easy board layout
- Robust pin-to-pin short circuit protection and thermal protection with auto-recovery option
- Excellent THD+N/pop free performance
- Four selectable, fixed gain settings
- Differential inputs
Applications
- Televisions
- Consumer audio equipment
Q & A
- What is the maximum output power of the TPA3112D1PWP?
The TPA3112D1PWP can deliver up to 25 W into an 8-Ω load at < 0.1% THD+N from a 24-V supply.
- What is the operating temperature range of the TPA3112D1PWP?
The operating temperature range is -40°C to 85°C.
- What is the supply voltage range for the TPA3112D1PWP?
The supply voltage range is from 8 V to 26 V.
- Does the TPA3112D1PWP require an external heat sink?
No, the high efficiency of the TPA3112D1PWP (> 90%) eliminates the need for an external heat sink during music playback.
- What type of speaker protection does the TPA3112D1PWP offer?
The TPA3112D1PWP features the SpeakerGuard™ speaker protection system, which includes an adjustable power limiter and a DC detection circuit.
- What is the package type and pin count of the TPA3112D1PWP?
The package type is HTSSOP (PWP) with 28 pins.
- What are the key applications of the TPA3112D1PWP?
The key applications include televisions and consumer audio equipment.
- Does the TPA3112D1PWP support differential inputs?
- What is the moisture sensitivity level (MSL) of the TPA3112D1PWP?
The moisture sensitivity level (MSL) is 3.
- What is the peak reflow temperature for the TPA3112D1PWP?
The peak reflow temperature is 260°C.
