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 TI's 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. PowerPAD™ PurePath™ HD
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
TAS5634 | HTSSOP | 14.00 mm x 6.10 mm |
DATE | REVISION | NOTES |
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October 2017 | * | Initial Public release. |
DEVICE NAME | DESCRIPTION | PVDD VOLTAGE (Nom.) | RDrain-to-Source |
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TAS5612LA | 125 W Stereo / 250 W Mono HD Digital-Input Power Stage | 32.5 V | 60 mΩ |
TAS5614LA | 150 W Stereo / 300 W Mono HD Digital-Input Power Stage | 36 V | 60 mΩ |
TAS5624A | 200 W Stereo / 400 W Mono HD Digital-Input Power Stage | 36 V | 40 mΩ |
TAS5634 | 300 W Stereo / 600 W Mono HD Digital-Input Power Stage | 58 V | 80 mΩ |