Overview
The TAS5634DDVR is a high-performance, PWM-input, Class-D amplifier power stage designed by Texas Instruments. This component is part of the PurePath™ HD family and is optimized for high-efficiency audio applications. It can deliver up to 300 W per channel in stereo mode (BTL) or 600 W in mono mode (PBTL) with a nominal power supply voltage of 58 V. The TAS5634DDVR is compatible with TI's digital-input audio processors and modulators, such as the TAS5548 and TAS5558, making it a complete digital-input Class-D amplifier solution.
Key Specifications
| Parameter | Min | |||
|---|---|---|---|---|
| Power Output (Stereo, BTL, 6 Ω, 10% THD+N) | - | 300 | - | W |
| Power Output (Mono, PBTL, 3 Ω, 10% THD+N) | - | 600 | - | W |
| Supply Voltage (PVDD_X) | 12 | 58 | 62 | V |
| Load Impedance (BTL) | 5 | - | 8 | Ω |
| Load Impedance (PBTL) | 3 | - | 4 | Ω |
| PWM Frame Rate | 352 | 384 | 500 | kHz |
| Junction Temperature | 0 | - | 125 | °C |
| Package Type | - | - | - | 44-Pin HTSSOP (DDV) |
| Thermal Resistance (RθJA) | - | - | 2.6 | °C/W |
Key Features
- PWM-input, Class-D amplifier power stage compatible with TI digital-input (I2S) audio processors and modulators.
- Integrated MOSFETs with a new gate drive scheme for high peak efficiency and low idle losses.
- Closed-loop feedback design with constant voltage gain and internally matched gain resistors for high power supply rejection ratio (PSRR) and low output noise.
- Overcurrent, short circuit protection, and DC speaker protection.
- Pre-clipping output signal for control of a Class-G power supply.
- Thermally-enhanced 44-Pin HTSSOP package with PowerPAD™ for efficient thermal management.
- Support for various operating modes including BTL, PBTL, and SE configurations.
Applications
- Powered Speakers
- Subwoofers
- Mini Component Systems
- Soundbars
- Professional and Public Address (PA) Speakers
Q & A
- What is the maximum power output of the TAS5634DDVR in stereo mode?
The TAS5634DDVR can deliver up to 300 W per channel in stereo mode (BTL) with a 6 Ω load.
- What is the maximum power output of the TAS5634DDVR in mono mode?
The TAS5634DDVR can deliver up to 600 W in mono mode (PBTL) with a 3 Ω load.
- What is the nominal supply voltage for the TAS5634DDVR?
The nominal supply voltage for the TAS5634DDVR is 58 V.
- What type of package does the TAS5634DDVR come in?
The TAS5634DDVR comes in a thermally-enhanced 44-Pin HTSSOP package (DDV) with a PowerPAD™.
- What are the key protection features of the TAS5634DDVR?
The TAS5634DDVR includes overcurrent, short circuit protection, and DC speaker protection.
- What is the recommended PWM frame rate for the TAS5634DDVR?
The recommended PWM frame rate is between 352 kHz and 500 kHz, with a typical value of 384 kHz.
- What is the thermal resistance (RθJA) of the TAS5634DDVR?
The thermal resistance (RθJA) of the TAS5634DDVR is 2.6 °C/W.
- What are the typical applications for the TAS5634DDVR?
The TAS5634DDVR is typically used in powered speakers, subwoofers, mini component systems, soundbars, and professional and public address (PA) speakers.
- How does the TAS5634DDVR manage thermal issues?
The TAS5634DDVR uses a thermally-enhanced 44-Pin HTSSOP package with a PowerPAD™ for efficient thermal coupling to a heatsink.
- Is the TAS5634DDVR compatible with other TI components?
Yes, the TAS5634DDVR is compatible with TI's digital-input audio processors and modulators, such as the TAS5548 and TAS5558.
