TPA3156D2 Analog Input, Class-D Amplifiers

Texas Instruments' TPA3156D2 are 2 x 70 W, 4.5 V to 26 V, analog input, Class-D amplifiers with low idle power dissipation

Image of Texas Instruments' TPA3156D2 Analog Input, Class-D AmplifiersTexas Instruments' TPA3156D2 have low idle power loss and help to extend the battery life of Bluetooth®/wireless speakers and other battery-powered audio systems. The TPA3156D2's high efficiency allows it to do 2 x 70 W with an external heat sink on a dual layer PCB. These devices integrate 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, making it possible to synchronize multiple devices.

The TPA3156D2 devices are fully protected against faults with short-circuit 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.

Features
  • 2 x 70 W into a 4 Ω BTL load at 24 V
  • Wide voltage range: 4.5 V to 26 V
  • Efficient Class-D operation
    • Very low idle current: <23 mA for recommended LC filter configurations
    • Greater than 90% power efficiency
    • Adaptive modulation schemes based on output power
  • Multiple switching frequencies
    • AM avoidance
    • Master and slave synchronization
    • 300 KHz to 1.2 MHz switching frequency
  • Feedback power-stage architecture with high PSRR reduces PSU requirements
  • Programmable power limit
  • Parallel BTL mode and mono-channel mode support
  • Supports both single and dual power supply modes
  • Integrated self-protection circuits including overvoltage, undervoltage, overtemperature, DC-detect, and short circuit with error reporting
  • Thermally enhanced packages
    • DAD (32-pin HTSSOP pad up)
  • Pin-to-pin compatible with TPA3116D2 and TPA3126D2 
Applications
  • Bluetooth/wireless speakers
  • Soundbars
  • Mini-micro component, docks
  • Home theaters

Associated Parts

图片制造商零件编号描述可供货数量价格查看详情
IC AMP CLASS D STER 50W 32HTSSOPTPA3116D2DADIC AMP CLASS D STER 50W 32HTSSOP678 - 立即发货$23.77查看详情
EVAL BOARD FOR TPA3116D2TPA3116D2EVMEVAL BOARD FOR TPA3116D212 - 立即发货$1,709.42查看详情
IC AMP CLASS D STER 50W 32HTSSOPTPA3116D2DADRIC AMP CLASS D STER 50W 32HTSSOP14379 - 立即发货$25.23查看详情
IC AMP CLASS D STER 50W 32HTSSOPTPA3126D2DADIC AMP CLASS D STER 50W 32HTSSOP347 - 立即发货$30.12查看详情

TPA3156D2 Analog Input, Class-D Amplifiers

图片制造商零件编号描述可供货数量价格查看详情
IC AMP CLASS D STER 70W 32HTSSOPTPA3156D2DADIC AMP CLASS D STER 70W 32HTSSOP1176 - 立即发货$40.70查看详情
发布日期: 2018-04-27