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Texas Instruments TAS5634DDV | Demoboard TAS5634EVM
300-W stereo, 600-W mono, 12- to 62-V supply, PWM input Class-D audio amplifier
Overview
| Topology | Other Topology |
| IC revision | A |
Description
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.
Features
- PWM-Input, Class-D Amplifier Power Stage compatible with TI Digital-Input (I2S) Audio Processors and Modulators
- HD Integrated Closed-Loop Feedback provides:
- 0.025% THD at 1 W into 6 Ω
70 dB PSRR (No Input Signal)
105 dB SNR (A-weighted)
- Output Power at 10%THD+N
- 600 W / 3 Ω PBTL Mono Configuration
- 300W / 6 Ω BTL Stereo Configuration
- 230 W / 8 Ω BTL StereoConfiguration
- Output Power at 1%THD+N
- 465 W / 3 Ω PBTL Mono Configuration
- 240 W / 6 Ω BTL Stereo Configuration
- 180 W / 8 Ω BTL Stereo Configuration
- Integrated 80 mΩ MOSFETs for Reduced Heatsink Size
91%Efficiency at Full Output Power
75% Efficiency at 1/8 OutputPower
- Click and Pop Free Startup
- Device Protection: Undervoltage, Over Temperature, Overcurrent, Short Circuit Protection and DC Speaker Protection
- Pre-Clipping Output Signal for Control of a Class-G Power Supply
- 44-Pin HTSSOP (DDV) Package with Thermal Pad on the Top
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | Tol. C | VR(V (DC)) | Size | Operating Temperature | DF(%) | RISO | Ceramic Type | L(mm) | W(mm) | H(mm) | Fl(mm) | Packaging | L(µH) | ISAT(A) | RDC max.(mΩ) | fres(MHz) | Version | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WCAP-CSGP MLCCs 16 V(DC), 2.2 nF, ±10% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 16 V(DC) | Capacitance2.2 nF | Capacitance±10% | Rated Voltage16 V (DC) | Size0603 | Operating Temperature -55 °C up to +125 °C | Dissipation Factor3.5 % | Insulation Resistance10 GΩ | Ceramic TypeX7R Class II | Length1.6 mm | Width0.8 mm | Height0.8 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | – | – | |||||
 | WE-PD SMT Power Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PD SMT Power Inductor | – | – | – | Size1050 | Operating Temperature -40 °C up to +150 °C | – | – | – | Length10 mm | Width10 mm | Height5 mm | – | – | Inductance100 µH | Saturation Current1.8 A | DC Resistance198 mΩ | Self Resonant Frequency5.9 MHz | VersionPerformance |