TPA3156D2 Series
70-W stereo, 140-W mono, 4.5- to 26-V, analog input Class-D audio amplifier w/ low idle current
Manufacturer: Texas Instruments
Catalog
70-W stereo, 140-W mono, 4.5- to 26-V, analog input Class-D audio amplifier w/ low idle current
Key Features
• 2 × 70 W Into a 4-Ω BTL Load at 24 VWide Voltage Range: 4.5 V to 26 VEfficient Class-D OperationVery Low Idle Current: <23 mA for recommended LC filter configurationsGreater than 90% Power EfficiencyAdaptive Modulation Schemes based on Output PowerMultiple Switching FrequenciesAM AvoidanceMaster and Slave Synchronization300-KHz to 1.2-MHz Switching FrequencyFeedback Power-Stage Architecture With High PSRR Reduces PSU RequirementsProgrammable Power LimitParallel BTL Mode and Mono-Channel Mode SupportSupports Both Single and Dual Power Supply ModesIntegrated Self-Protection Circuits Including Overvoltage, Undervoltage, Overtemperature, DC-Detect, and Short Circuit With Error ReportingThermally Enhanced PackagesDAD (32-Pin HTSSOP Pad Up)Pin to Pin Compatible with TPA3116D2 and TPA3126D22 × 70 W Into a 4-Ω BTL Load at 24 VWide Voltage Range: 4.5 V to 26 VEfficient Class-D OperationVery Low Idle Current: <23 mA for recommended LC filter configurationsGreater than 90% Power EfficiencyAdaptive Modulation Schemes based on Output PowerMultiple Switching FrequenciesAM AvoidanceMaster and Slave Synchronization300-KHz to 1.2-MHz Switching FrequencyFeedback Power-Stage Architecture With High PSRR Reduces PSU RequirementsProgrammable Power LimitParallel BTL Mode and Mono-Channel Mode SupportSupports Both Single and Dual Power Supply ModesIntegrated Self-Protection Circuits Including Overvoltage, Undervoltage, Overtemperature, DC-Detect, and Short Circuit With Error ReportingThermally Enhanced PackagesDAD (32-Pin HTSSOP Pad Up)Pin to Pin Compatible with TPA3116D2 and TPA3126D2
Description
AI
The TPA3156D2 has low idle power loss and helps to extend the battery life of Bluetooth/Wireless speakers and other battery-powered audio systems. The high efficiency of the TPA3156D2 device allows it to do 2 × 70 W with external heat sink on a dual layer PCB. This device integrates an efficiency boost mode, which dynamically reduces the current ripple of the external LC filter and the idle current .
The TPA3156D2 advanced oscillator/PLL circuit employs a multiple switching frequency option to avoid AM interferences, which is achieved together with an option of either master or slave option, making it possible to synchronize multiple devices.
The TPA3156D2 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.
The TPA3156D2 has low idle power loss and helps to extend the battery life of Bluetooth/Wireless speakers and other battery-powered audio systems. The high efficiency of the TPA3156D2 device allows it to do 2 × 70 W with external heat sink on a dual layer PCB. This device integrates an efficiency boost mode, which dynamically reduces the current ripple of the external LC filter and the idle current .
The TPA3156D2 advanced oscillator/PLL circuit employs a multiple switching frequency option to avoid AM interferences, which is achieved together with an option of either master or slave option, making it possible to synchronize multiple devices.
The TPA3156D2 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.
