Overview
The TPA3123D2PWPG4 is a 25-W (per channel) efficient, Class-D audio power amplifier produced by Texas Instruments. This amplifier is designed to drive stereo speakers in a single-ended configuration or a mono speaker in a bridge-tied-load configuration. It operates from a supply voltage range of 10 V to 30 V and is known for its high efficiency, which eliminates the need for an external heat sink during music playback.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Power (per channel) | 25 W | - |
| Output Power at 4 Ω Load from 27 V Supply | 25 W | - |
| Output Power at 4 Ω Load from 24 V Supply | 20 W | - |
| Supply Voltage Range | 10 V to 30 V | V |
| Operating Temperature Range | -40°C to 85°C | °C |
| Package Type | 24-Pin TSSOP | - |
| Gain Settings | 20, 26, 32, 36 dB | dB |
Key Features
- Efficient Class-D operation eliminates the need for heat sinks.
- Four selectable, fixed-gain settings (20, 26, 32, 36 dB).
- Internal oscillator (no external components required).
- Single-ended analog inputs.
- Thermal and short-circuit protection with auto recovery.
- Space-saving surface-mount 24-pin TSSOP package.
- Pin-to-pin compatible with TPA3120D2.
- Advanced power-off pop reduction.
Applications
- Televisions
- Other audio systems requiring efficient Class-D amplification.
Q & A
- What is the output power of the TPA3123D2 per channel?
The TPA3123D2 can deliver up to 25 W per channel into a 4 Ω load from a 27 V supply.
- What is the supply voltage range for the TPA3123D2?
The TPA3123D2 operates from a supply voltage range of 10 V to 30 V.
- Does the TPA3123D2 require an external heat sink?
No, the efficient Class-D operation of the TPA3123D2 eliminates the need for an external heat sink.
- What are the gain settings available for the TPA3123D2?
The gain settings are 20, 26, 32, and 36 dB, controlled by two gain select pins.
- What type of package does the TPA3123D2 come in?
The TPA3123D2 comes in a 24-pin TSSOP package.
- Is the TPA3123D2 protected against thermal and short-circuit issues?
- Is the TPA3123D2 compatible with other Texas Instruments amplifiers?
- How does the TPA3123D2 handle power-off pop noise?
The TPA3123D2 features advanced power-off pop reduction, minimizing pop noise during start-up and shut-down sequences.
- What are some common applications for the TPA3123D2?
The TPA3123D2 is commonly used in televisions and other audio systems requiring efficient Class-D amplification.
- What is the operating temperature range for the TPA3123D2?
The operating temperature range for the TPA3123D2 is -40°C to 85°C.
