Overview
The TPA3118D2QDAPRQ1 is a high-performance, Class-D stereo audio amplifier produced by Texas Instruments. This device is designed for automotive applications, offering efficient and reliable audio amplification. It features advanced modulation schemes, high power efficiency, and multiple protection mechanisms to ensure robust operation under various conditions.
The TPA3118D2QDAPRQ1 can drive up to 2 × 30 W into 8-Ω loads without the need for a heat sink on a dual-layer PCB, making it suitable for a wide range of automotive audio systems. The device supports multiple output configurations, including stereo BTL and mono PBTL modes, and is qualified for automotive applications with an AEC-Q100 certification.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | HTSSOP-32-EP-6.1mm | |
| Supply Voltage Range | 4.5 V to 26 V | V |
| Maximum Output Power (BTL) | 2 × 30 W into 8 Ω at 24 V | W |
| Quiescent Supply Current | 20 - 35 mA at V(PVCC) = 12 V | mA |
| Quiescent Supply Current in Shutdown Mode | < 50 µA at V(PVCC) = 12 V | µA |
| Operating Temperature Range | -40°C to 125°C | °C |
| Junction-to-Ambient Thermal Resistance | 32.4 °C/W | °C/W |
Key Features
- Efficient Class-D operation with >90% power efficiency and low idle loss.
- Advanced modulation schemes to avoid AM interference.
- Multiple switching frequencies and master/slave synchronization.
- Feedback power-stage architecture with high PSRR (Power Supply Rejection Ratio).
- Programmable power limit and differential/single-ended inputs.
- Stereo BTL and mono PBTL output configurations.
- Integrated self-protection circuits including overvoltage, undervoltage, overtemperature, DC-detect, and short-circuit protection with error reporting.
- Thermally enhanced packages and AEC-Q100 qualified for automotive applications.
Applications
- Automotive audio systems.
- Emergency call systems.
- Driver notifications and alerts.
Q & A
- What is the maximum output power of the TPA3118D2QDAPRQ1?
The TPA3118D2QDAPRQ1 can deliver up to 2 × 30 W into 8-Ω loads at 24 V.
- What is the operating voltage range of the TPA3118D2QDAPRQ1?
The device operates within a voltage range of 4.5 V to 26 V.
- What are the key protection features of the TPA3118D2QDAPRQ1?
The device includes overvoltage, undervoltage, overtemperature, DC-detect, and short-circuit protection with error reporting.
- Can the TPA3118D2QDAPRQ1 be synchronized with other devices?
- What is the thermal performance of the TPA3118D2QDAPRQ1?
The device has a junction-to-ambient thermal resistance of 32.4 °C/W and operates within an ambient temperature range of -40°C to 125°C.
- Is the TPA3118D2QDAPRQ1 qualified for automotive use?
- What are the typical applications of the TPA3118D2QDAPRQ1?
The device is commonly used in automotive audio systems, emergency call systems, and driver notifications.
- What is the package type of the TPA3118D2QDAPRQ1?
The device comes in a HTSSOP-32-EP-6.1mm package.
- How efficient is the TPA3118D2QDAPRQ1 in terms of power consumption?
The device operates with >90% power efficiency and low idle loss.
- Can the TPA3118D2QDAPRQ1 be used in single-ended or differential input configurations?
