TAS5827 - 47W Stereo Closed-Loop Class-D Amp | TI
MPN: TAS5827 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.5 | $3.50 |
| 10 | $3.15 | $31.50 |
| 100 | $2.8 | $280.00 |
| 500 | $2.5 | $1,250.00 |
| 1,000 | $2.25 | $2,250.00 |
TAS5827 Overview
A Class-D amplifier is a switching amplifier that uses pulse-width modulation to achieve high efficiency, often exceeding 90%, compared to linear amplifiers. It is a key component in the audio signal chain, converting digital audio data into high-power analog output while minimizing heat dissipation. The TAS5827 integrates a closed-loop architecture, which improves linearity and reduces distortion, and an audio processor for advanced signal processing.
Key features include a delay buffer up to 5ms in BTL mode or 10ms in PBTL mode, Class-H control for enhanced efficiency, and hardware control mode for selecting switching frequency, analog gain, BTL/PBTL mode, and cycle-by-cycle current limit threshold via pin configuration. The device also supports software control mode with classic BQs, 3-band DRC, AGL, and proprietary audio envelope tracking Class-H control.
The TAS5827 uses a closed-loop feedback design that reduces power supply noise and improves audio quality. It integrates a high-performance audio processor capable of executing complex DSP algorithms, making it suitable for applications requiring EQ, DRC, and dynamic range compression. The device operates from a single supply and includes comprehensive protection features.
Typical applications include smart speakers, soundbars, home theater systems, and active speakers. Its high efficiency and low power dissipation make it ideal for battery-powered and energy-conscious designs. The integrated audio processor reduces external component count, simplifying system design.
When designing with the TAS5827, ensure proper PCB layout for thermal management and minimize parasitic inductance in the output stage. Use appropriate decoupling capacitors on the power supply pins and follow the recommended layout in the datasheet for optimal performance.
Drop-in alternatives for TAS5827 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with TAS5827 (same form factor and footprint) — differing in Efficiency, Output Power, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
TAS5830RHBR
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.1 / Unit
View Datasheet →TAS5825M
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
TAS5725M
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
TAS5805M
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
TAS5827 Maximum Ratings & Electrical Characteristics
| Output Power | 47W per channel (BTL) |
| Number of Channels | 2 (Stereo) |
| Amplifier Type | Class-D |
| Input Type | Digital (I2S) |
| Max Sample Rate | 192 kHz |
| Switching Frequency | Configurable via pin (Hardware mode) |
| Delay Buffer | 5ms (BTL), 10ms (PBTL) |
| Audio Processor | Integrated (BQ, DRC, AGL, Class-H) |
| Control Interface | Hardware/Software (I2C) |
| Package | 32-VQFN (5x5 mm) |
| RoHS | Compliant |
| Mounting Type | Surface Mount |
| Efficiency | High (Class-H control) |
TAS5827 Pin Configuration
| Pin 1 | PVDD — Power supply for output stage |
| Pin 2 | GND — Ground |
| Pin 3 | OUT_L — Left channel output |
| Pin 4 | OUT_R — Right channel output |
| Pin 5 | AVDD — Analog supply |
| Pin 6 | DVDD — Digital supply |
| Pin 7 | SCLK — I2S bit clock |
| Pin 8 | LRCK — I2S word clock |
| Pin 9 | DIN — I2S data input |
| Pin 10 | MCLK — Master clock |
| Pin 11 | SDA — I2C data |
| Pin 12 | SCL — I2C clock |
Typical Applications
TAS5827 is suitable for 6 applications: Smart Speakers, Soundbars, Home Theater Systems, Active Speakers, Portable Bluetooth Speakers, Automotive Audio.
Smart Speakers
The TAS5827's high efficiency and integrated audio processor make it ideal for smart speakers. It delivers 47W per channel, enabling rich sound in compact designs. The closed-loop architecture reduces distortion, and the digital input simplifies connection to SoCs. Class-H control extends battery life in portable models.
Recommended
Soundbars
In soundbars, the TAS5827 provides high-quality audio with low power dissipation. Its integrated DSP allows for EQ and DRC to optimize sound for TV content. The delay buffer helps synchronize audio with video. The compact VQFN package fits slim soundbar enclosures.
Recommended
Home Theater Systems
The TAS5827 is suitable for home theater systems requiring multiple channels. Its high output power and low distortion ensure immersive audio. The integrated audio processor supports advanced sound processing. The device's efficiency reduces heat, allowing for compact receiver designs.
Recommended
Active Speakers
Active speakers benefit from the TAS5827's integrated DSP and high efficiency. The device can be configured via I2C for custom sound tuning. Its small footprint allows for integration into speaker cabinets. The closed-loop design ensures consistent performance across temperature.
Recommended
Portable Bluetooth Speakers
For portable speakers, the TAS5827's Class-H control and high efficiency extend battery life. The digital input reduces component count, and the integrated processor handles EQ. The device operates from a single supply, simplifying power design. Its small package is ideal for handheld devices.
Recommended
Automotive Audio
The TAS5827 can be used in automotive audio systems, providing high-quality sound with low power consumption. Its robust design and thermal performance suit vehicle environments. The integrated DSP allows for speed-dependent volume control. The device's efficiency reduces strain on the car's electrical system.
Recommended
Recommended Products Summary
Engineering reference data for TAS5827 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TAS5828M | TAS5830RHBR | TAS5825M |
|---|---|---|---|---|
| Package | VQFN-32 (5x5 mm) | TSSOP32 | VQFN-32 | VQFN-32 |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Audio Processor | Integrated | Integrated | Integrated | Integrated |
| Control Interface | Hardware/Software | Hardware/Software | Hardware/Software | Hardware/Software |
| Class-H Control | Yes | Yes | Yes | Yes |
Key Differentiators
- Integrated audio processor with advanced DSP (vs TAS5725M)
- Closed-loop architecture (vs TAS5805M)
- High output power in compact package (vs TAS5828M)
Design Notes
The TAS5827 in VQFN-32 package requires proper thermal management. Ensure the exposed pad is soldered to a large copper area on the PCB. Use thermal vias to conduct heat to the ground plane. For 47W output, consider a heatsink or forced airflow if ambient temperature is high.
Place decoupling capacitors close to the PVDD and AVDD pins. Use low-ESR ceramic capacitors (e.g., 10uF) for bulk decoupling and 0.1uF for high-frequency noise. Keep the output filter components close to the OUT pins to minimize parasitic inductance.
Ensure the I2S and I2C lines are properly terminated and have correct pull-up resistors. Avoid routing digital signals near the analog output stage to prevent noise coupling. Follow the layout guidelines in the datasheet for optimal performance.
Compliance Information
RoHS compliant per TI product page. Other compliance data not specified in provided data.
