1 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.TheTPA3118D2 can even run 2 × 30 W / 8 Ω without heat sink on adual 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.
2 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, DC
Detect, 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
3 Applications
•
Mini-Micro Component, Speaker Bar, Docks
•
After-Market Automotive
•
CRT TV
•
Consumer Audio Applications
4 封装图
5 脚位图
