Overview
The TAS5411-Q1 is a mono class-D audio amplifier designed by Texas Instruments for use in automotive applications. This device is optimized for ultra-efficiency, using class-D technology to reduce power consumption, heat generation, and peak currents in the electrical system. It is particularly suited for automotive emergency call (eCall), telematics, and instrument cluster systems. The amplifier provides up to 8 W of output power into a 4 Ω load at less than 10% THD+N from a 14.4-Vdc automotive battery, making it ideal for start-stop support and operation from a backup battery if necessary.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| Output Power | 6 | - | 8 | W (at 4 Ω, THD+N ≤ 10%) |
| Operating Voltage Range | 4.5 | - | 18 | V |
| Efficiency | - | - | 83% | (at 4 Ω, P(O) = 8 W) |
| Input Voltage (Analog Audio) | 0 | - | 1 | Vrms (AC-coupled) |
| Operating Temperature Range | -40 | - | 125 | °C |
| Package Type | - | - | HTSSOP (16 pins) | - |
| Junction-to-Ambient Thermal Resistance | - | - | 39.4 | °C/W |
Key Features
- Qualified for Automotive Applications: AEC-Q100 Qualified with Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature.
- Mono BTL Class-D Power Amplifier.
- 8-W Output Power at 10% THD+N Into 4 Ω.
- 4.5-V to 18-V Operating Range.
- 83% Efficiency Into 4 Ω.
- Differential Analog Input.
- Speaker Guard™ Speaker Protection With Adjustable Power Limiter.
- 75-dB Power-Supply Rejection Ratio (PSRR).
- Load Diagnostic Functions: Open and Shorted Output Load, Output-to-Power and -Ground Shorts.
- Protection and Monitoring Functions: Short-Circuit Protection, 40-V Load-Dump Protection per ISO-7637-2, Output DC Level Detection While Music Is Playing, Overtemperature Protection, Over- and Undervoltage Protection.
- Thermally Enhanced 16-Pin HTSSOP (PWP) Package With PowerPAD™ Package (Pad Down).
- Designed for Automotive EMC Requirements.
- ISO9000: 2002 TS16949 Certified.
Applications
- Automotive Emergency Call (eCall) Amplifier.
- Telematics Systems.
- Instrument Cluster Systems.
Q & A
- What is the output power of the TAS5411-Q1? The TAS5411-Q1 provides up to 8 W of output power into a 4 Ω load at less than 10% THD+N.
- What is the operating voltage range of the TAS5411-Q1? The operating voltage range is from 4.5 V to 18 V.
- What is the efficiency of the TAS5411-Q1? The efficiency is up to 83% into a 4 Ω load at 8 W output power.
- What type of input does the TAS5411-Q1 support? The device supports differential analog input.
- What protection features does the TAS5411-Q1 have? The device includes short-circuit protection, 40-V load-dump protection per ISO-7637-2, overtemperature protection, and over- and undervoltage protection.
- What is the package type of the TAS5411-Q1? The device is packaged in a 16-pin HTSSOP (PWP) with PowerPAD™.
- What are the key applications of the TAS5411-Q1? Key applications include automotive emergency call (eCall), telematics systems, and instrument cluster systems.
- Is the TAS5411-Q1 AEC-Q100 qualified? Yes, the device is AEC-Q100 qualified with a temperature grade of –40°C to 125°C.
- What is the thermal resistance of the TAS5411-Q1? The junction-to-ambient thermal resistance is 39.4 °C/W.
- Does the TAS5411-Q1 support load diagnostics? Yes, it supports load diagnostics including open and shorted output load, and output-to-power and -ground shorts.
