Overview
The TPA1517DWPRG4 is a stereo audio power amplifier produced by Texas Instruments. This component is designed to deliver high-quality audio output and is particularly suited for applications requiring robust and efficient audio amplification. The TPA1517 contains two identical amplifiers, each capable of delivering 6 W of continuous average power into a 4-Ω load at 10% THD+N or 5 W per channel at 1% THD+N. The amplifier features a fixed gain of 20 dB and includes thermal protection, mute, and standby functions, making it versatile for various power-sensitive applications.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| VCC Supply Voltage | 9.5 | 18 | V | |
| TA Operating Free-Air Temperature Range | -40 | 85 | °C | |
| TJ Operating Junction Temperature Range | -40 | 150 | °C | |
| Tstg Storage Temperature Range | -65 | 85 | °C | |
| ICC Supply Current (VCC = 12 V, TA = 25°C) | 45 | 80 | mA | |
| PO Output Power (VCC = 14.5 V, RL = 4 Ω, THD < 10%) | 6 | W | ||
| SNR Signal-to-Noise Ratio | 84 | dB | ||
| THD Total Harmonic Distortion + Noise (PO = 1 W, RL = 4 Ω) | 0.2% | |||
| V(M/SB) Voltage on M/SB Terminal for Normal Operation | 9.6 | V | ||
| ICC(SB) Supply Current in Standby Mode | 7 | 100 | µA |
Key Features
- High Power Outputs: Delivers up to 6 W per channel into a 4-Ω load at 10% THD+N or 5 W per channel at 1% THD+N.
- Fixed Gain: Internally fixed gain of 20 dB.
- Mute and Standby Operation: Features mute and standby modes controlled by the voltage on the M/SB terminal.
- Thermal Protection: Includes thermal protection to prevent damage to the IC by turning the device off when the junction temperature surpasses 150°C.
- Surface Mount Availability: Available in thermally enhanced surface-mount (DWP) and DIP packages.
- Wide Supply Range: Operates over a supply voltage range of 9.5 V to 18 V.
Applications
The TPA1517DWPRG4 is suitable for a variety of audio applications, including:
- Portable Audio Devices: Such as portable speakers, radios, and CD players.
- Home Audio Systems: Including stereo systems and home theaters.
- Automotive Audio Systems: For car stereos and other in-vehicle audio applications.
- Professional Audio Equipment: Such as public address systems and audio mixers.
Q & A
- What is the maximum output power of the TPA1517DWPRG4?
The TPA1517DWPRG4 can deliver up to 6 W per channel into a 4-Ω load at 10% THD+N or 5 W per channel at 1% THD+N.
- What is the fixed gain of the TPA1517DWPRG4?
The gain is internally fixed at 20 dB.
- How is the mute and standby operation controlled?
The mute and standby modes are controlled by the voltage on the M/SB terminal.
- What is the operating supply voltage range of the TPA1517DWPRG4?
The operating supply voltage range is from 9.5 V to 18 V.
- What type of thermal protection does the TPA1517DWPRG4 have?
The TPA1517DWPRG4 includes thermal protection that turns the device off when the junction temperature surpasses 150°C.
- In what packages is the TPA1517DWPRG4 available?
The TPA1517DWPRG4 is available in thermally enhanced surface-mount (DWP) and DIP packages.
- What is the signal-to-noise ratio (SNR) of the TPA1517DWPRG4?
The SNR is approximately 84 dB.
- How does the TPA1517DWPRG4 handle DC offset at the input terminals?
It is recommended to connect the inputs through a series capacitor to avoid DC offset degradation.
- What is the recommended configuration for minimizing turn-on pop noises?
A diode network and appropriate capacitor selection are recommended to minimize turn-on pop noises.
- How does the thermal performance of the TPA1517DWPRG4 improve with different packages and PCB designs?
Using the DWP package on a multilayer PCB with internal ground planes can achieve better thermal performance.
