Overview
The TPA3123D2PWPR 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 external heat sinks. The amplifier features a patented start-up and shut-down sequence that minimizes pop noise in the speakers without additional circuitry.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Continuous Output Power (PO) | 25 | W/ch (into 4 Ω from a 27 V supply) |
| Continuous Output Power (PO) | 20 | W/ch (into 4 Ω from a 24 V supply) |
| Supply Voltage Range | 10 to 30 | V |
| Maximum Supply Current (ICC) | 2 | A |
| Minimum Load Impedance | 3.2 | Ω |
| Operating Temperature Range | -40 to 85 | °C |
| Package Type | HTSSOP (PWP) | |
| Package Pins | 24 |
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 maximum output power of the TPA3123D2PWPR? The TPA3123D2PWPR 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 TPA3123D2PWPR? The supply voltage range is from 10 V to 30 V.
- Does the TPA3123D2PWPR require an external heat sink? No, the efficient Class-D operation eliminates the need for an external heat sink.
- What are the gain settings available for the TPA3123D2PWPR? The gain settings are 20, 26, 32, and 36 dB.
- What type of protection does the TPA3123D2PWPR have? It has thermal and short-circuit protection with auto recovery.
- What is the package type and pin count of the TPA3123D2PWPR? The package type is HTSSOP (PWP) with 24 pins.
- Is the TPA3123D2PWPR pin-to-pin compatible with any other model? Yes, it is pin-to-pin compatible with the TPA3120D2.
- What is the operating temperature range of the TPA3123D2PWPR? The operating temperature range is from -40°C to 85°C.
- How does the TPA3123D2PWPR minimize pop noise? It uses a patented start-up and shut-down sequence to minimize pop noise without additional circuitry.
- What are some typical applications for the TPA3123D2PWPR? Typical applications include televisions and other audio systems requiring efficient Class-D amplification.
