Overview
The TPA3001D1PWPRG4, produced by Texas Instruments, is a 20-W monaural bridge-tied load (BTL) Class-D audio power amplifier. This high-efficiency amplifier is designed to eliminate the need for heat sinks, making it ideal for various audio applications. It can drive 4-Ω or 8-Ω speakers with only a ferrite bead filter required to reduce EMI. The amplifier features a third-generation modulation technique that replaces large LC filters with small, low-cost ferrite bead filters, improving efficiency and signal-to-noise ratio (SNR).
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Power (10% THD+N) | 20 W | Into 8-Ω load from 18-V supply |
| Supply Voltage | 8 to 18 | V |
| Load Impedance | 4 Ω or 8 Ω | Ω |
| Gain Settings | 12, 18, 23.6, or 36 dB | dB |
| Supply Current | 8 mA (typ) at 12 V | mA |
| Shutdown Current | < 1 µA (typ) | µA |
| Operating Temperature Range | -40°C to 85°C | °C |
| Package Type | 24-pin thermally enhanced TSSOP (PWP) |
Key Features
- High efficiency, eliminating the need for heat sinks
- Third-generation modulation technique replacing large LC filters with small, low-cost ferrite bead filters
- Improved efficiency and SNR
- Low supply current: 8 mA (typ) at 12 V
- Shutdown control: < 1 µA (typ)
- Space-saving, thermally-enhanced PowerPAD™ packaging
- Short-circuit protection (short to VCC, short to GND, short between outputs)
- Depop circuitry to reduce pop at power-up and during shutdown cycling
- Differential input stage with high common-mode rejection and improved power-supply rejection
Applications
- LCD Monitors/TVs
- Hands-Free Car Kits
- Powered Speakers
Q & A
- What is the maximum output power of the TPA3001D1PWPRG4?
The TPA3001D1PWPRG4 can deliver up to 20 W into an 8-Ω load from an 18-V supply with 10% THD+N.
- What are the gain settings available for this amplifier?
The gain can be configured for 12, 18, 23.6, or 36 dB using the GAIN1 and GAIN0 input terminals.
- What type of protection does the TPA3001D1PWPRG4 offer?
The amplifier includes short-circuit protection (short to VCC, short to GND, short between outputs).
- How does the TPA3001D1PWPRG4 manage heat dissipation?
The amplifier features high efficiency and uses thermally-enhanced PowerPAD™ packaging, eliminating the need for an external heat sink.
- What is the typical supply current of the TPA3001D1PWPRG4?
The typical supply current is 8 mA at 12 V.
- What is the shutdown current of the TPA3001D1PWPRG4?
The shutdown current is less than 1 µA (typ).
- What type of filter is required for EMI reduction?
A ferrite bead filter is required to reduce EMI.
- What are the common applications of the TPA3001D1PWPRG4?
Common applications include LCD Monitors/TVs, Hands-Free Car Kits, and Powered Speakers.
- What is the operating temperature range of the TPA3001D1PWPRG4?
The operating temperature range is -40°C to 85°C.
- What type of packaging does the TPA3001D1PWPRG4 use?
The amplifier is available in a 24-pin thermally enhanced TSSOP (PWP) package.
