Overview
The TPA3001D1PWPR is a 20-W monaural bridge-tied load (BTL) class-D audio power amplifier manufactured by Texas Instruments. This amplifier is known for its high efficiency, which eliminates the need for heat sinks. It can drive 4- or 8-Ω speakers with only a ferrite bead filter required to reduce EMI. The TPA3001D1 is available in a 24-pin thermally enhanced HTSSOP (PWP) package, which provides excellent thermal performance without the need for an external heat sink.
Key Specifications
| Parameter | Value |
|---|---|
| Power Output | 20 W into 8 Ω (10% THD+N) from 18-V supply |
| Supply Voltage Range | 8 V to 18 V |
| Operating Temperature Range | -40°C to 85°C |
| Package Type | 24-pin HTSSOP (PWP) |
| Gain Settings | 12 dB, 18 dB, 23.6 dB, or 36 dB (controlled by GAIN1 and GAIN0) |
| Supply Current | 8 mA typ at 12 V |
| Shutdown Current | < 1 µA typ |
Key Features
- High efficiency, eliminating the need for heat sinks
- Short-circuit protection (short to VCC, short to GND, short between outputs)
- Third-generation modulation technique, replacing large LC filters with small, low-cost ferrite bead filters
- Improved signal-to-noise ratio (SNR)
- Low supply current: 8 mA typ at 12 V
- Shutdown control: < 1 µA typ
- Space-saving, thermally-enhanced PowerPAD™ packaging
- Differential input stage with high common-mode rejection and improved power-supply rejection
- Depop circuitry to reduce pop at power-up and during shutdown cycling
Applications
- LCD Monitors/TVs
- Hands-Free Car Kits
- Powered Speakers
Q & A
- What is the maximum power output of the TPA3001D1PWPR?
The TPA3001D1PWPR can deliver up to 20 W into an 8-Ω load from an 18-V supply with 10% THD+N.
- What is the supply voltage range for the TPA3001D1PWPR?
The supply voltage range is from 8 V to 18 V.
- What type of package does the TPA3001D1PWPR come in?
The TPA3001D1PWPR is available in a 24-pin thermally enhanced HTSSOP (PWP) package.
- How is the gain of the TPA3001D1PWPR controlled?
The gain is controlled by two input terminals, GAIN1 and GAIN0, allowing for gain settings of 12 dB, 18 dB, 23.6 dB, or 36 dB.
- What protection features does the TPA3001D1PWPR have?
The amplifier includes short-circuit protection (short to VCC, short to GND, short between outputs) and thermal protection.
- What is the typical supply current of the TPA3001D1PWPR at 12 V?
The typical supply current is 8 mA at 12 V.
- What is the shutdown current of the TPA3001D1PWPR?
The shutdown current is less than 1 µA.
- What type of modulation technique does the TPA3001D1PWPR use?
The TPA3001D1PWPR uses a third-generation modulation technique that replaces large LC filters with small, low-cost ferrite bead filters.
- Does the TPA3001D1PWPR have depop circuitry?
Yes, the amplifier includes depop circuitry to reduce pop at power-up and during shutdown cycling.
- What are some common applications for the TPA3001D1PWPR?
Common applications include LCD monitors/TVs, hands-free car kits, and powered speakers.
