The TPA311xD2-Q1 devices are automotive stereo, efficient, digital-amplifier power stages for driving speakers up to 100 W into 2 Ω in mono. The TPA3118D2-Q1 can even drive 2 × 30 W into 8 Ω without a heat sink on a dual-layer PCB. If even higher power is needed, the TPA3116D2-Q1 drives 2 × 50 W into 4 Ω with a small heat sink attached to its top-side thermal pad.
●The TPA311xD2-Q1 advanced oscillator and PLL circuit employ a multiple-switching-frequency option to avoid AM interference; this is achieved together with an option of either master or slave selection, making it possible to synchronize multiple devices.
●The TPA311xD2-Q1 devices are fully protected against faults with short-circuit protection and thermal protection as well as overvoltage, undervoltage and dc protection. Faults are reported back to the processor to prevent devices from being damaged during overload conditions.
● Supports Multiple Output Configurations
● 2 × 50 W Into a 4-Ω BTL Load at 21 V (TPA3116D2-Q1)
● 2 × 30 W Into an 8-Ω BTL Load at 24 V (TPA3118D2-Q1)
● Wide Voltage Range: 4.5 V to 26 V
● Efficient Class-D Operation
● >90% Power Efficiency Combined With Low Idle Loss Greatly Reduces Heat Sink Size
● Advanced Modulation Schemes
● Multiple Switching Frequencies
● AM Avoidance
● Master and Slave Synchronization
● Up to 1.2-MHz Switching Frequency
● Feedback Power-Stage Architecture With High PSRR Reduces PSU Requirements
● Programmable Power Limit
● Differential and Single-Ended Inputs
● Stereo BTL and Mono PBTL Modes
● Single Power Supply Reduces Component Count
● Integrated Self-Protection Circuits Including Overvoltage, Undervoltage, Overtemperature, DC-Detect, and Short Circuit With Error Reporting
● Designed for Automotive EMC Requirements
● Thermally Enhanced Packages
● DAD (32-pin HTSSOP Pad Up)
● DAP (32-pin HTSSOP Pad Down)
● –40°C to 125°C Ambient Temperature Range
● Qualified for Automotive Applications
● AEC-Q100 Qualified With the Following Results:
● Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
● Device HBM ESD Classification Level H2
● Device CDM ESD Classification Level C4B
