Apraksts

• 1 Features
• 1• Supports Multiple Output Configurations
• – 2 × 50 W Into a 4-Ω BTL Load at 21 V
• (TPA3116D2)
• – 2 × 30 W Into a 8-Ω BTL Load at 24 V
• (TPA3118D2)
• – 2 × 15 W Into a 8-Ω BTL Load at 15 V
• (TPA3130D2)
• • 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 and Mono Mode With Single-Filter Mono
• Configuration
• • Single Power Supply Reduces Component Count
• • Integrated Self-Protection Circuits Including
• Overvoltage, Undervoltage, Overtemperature, DCDetect,
• and Short Circuit With Error Reporting
• • Thermally Enhanced Packages
• – DAD (32-Pin HTSSOP Pad Up)
• – DAP (32-Pin HTSSOP Pad Down)
• • –40°C to 85°C Ambient Temperature Range
• 2 Applications
• • Mini-Micro Component, Speaker Bar, Docks
• • After-Market Automotive
• • CRT TV
• • Consumer Audio Applications
• 3 Description
• The TPA31xxD2 series are stereo efficient, digital
• amplifier power stage for driving speakers up to 100
• W / 2 Ω in mono. The high efficiency of the
• TPA3130D2 allows it to do 2 × 15 W without external
• heat sink on a single layer PCB. The TPA3118D2 can
• even run 2 × 30 W / 8 Ω without heat sink on a dual
• layer PCB. If even higher power is needed the
• TPA3116D2 does 2 × 50 W / 4 Ω with a small heatsink
• attached to its top side PowerPAD. All three
• devices share the same footprint enabling a single
• PCB to be used across different power levels.
• The TPA31xxD2 advanced oscillator/PLL circuit
• employs a multiple switching frequency option to
• avoid AM interferences; this is achieved together with
• an option of either master or slave option, making it
• possible to synchronize multiple devices.
• The TPA31xxD2 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.

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