0
ACTIVE
Audio input type |
PWM |
Architecture |
Class-D |
Speaker channels (max) |
4 |
Control interface |
Hardware |
Output power (W) |
300 |
Power stage supply (max) (V) |
58 |
Power stage supply (min) (V) |
12 |
RDS(on) (Ω) |
0.08 |
THD + N at 1 kHz (%) |
0.025 |
Load (min) (Ω) |
3 |
Analog supply voltage (min) (V) |
10.8 |
Analog supply voltage (max) (V) |
13.2 |
Rating |
Catalog |
Operating temperature range (°C) |
0 to 70 |
HTSSOP (DDV)-44-113.4 mm² 14 x 8.1
The TAS5634 is a PWM-input, Class-D amplifier power stage that supports 2 x 300 W (6 Ω) or 1 x 600 W (3 Ω) output power with a nominal power supply voltage of 58V. The 58V supply voltage provides support for higher impedance speaker loads including 6 Ω in BTL and 3 Ω in PBTL. Integrated MOSFETs and a new gate drive scheme provide high peak efficiency and low idle losses to reduce thermal solution size.
The TAS5634 uses a closed-loop feedback design with constant voltage gain. The internally matched gain resistors ensure a high power supply rejection ratio (PSRR) and low output noise due to switch mode power supplies (SMPS).
The TAS5634 is a fully integrated power stage compatible with TIs portfolio of digital-input (I2S) audio processors and modulators, like the TAS5548 and TAS5558, making it a complete digital-input Class-D amplifier. The TAS5634 is available in the surface mount 44-pin HTSSOP package and is part of a pin-compatible family of PWM-input Class-D power stages including the TAS5612LA, TAS5614LA and TAS5624A.
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