4.5V to 26.4V Class-H control digital-in Class-D audio amp with ultra-low idle & superior efficiency
Product details
Parameters
Package | Pins | Size
Features
- High-efficiency Class-D operation with Hybrid-Pro:
- Approximately 50% longer battery life compared to fixed supply voltage solutions
- > 90% Power efficiency, 90 mΩ RDSon
- Low quiescent current, < 20 mA at 12 V PVDD
- Supports multiple output configurations:
- 1 × 53 W, 1.0 Mode (4-Ω, 22 V, THD+N=1%)
- 1 × 65 W, 1.0 Mode (4-Ω, 22 V, THD+N=10%)
- 2 × 30 W, 2.0 Mode (8-Ω, 24 V, THD+N=1%)
- 2 × 38 W, 2.0 Mode (8-Ω, 24 V, THD+N=10%)
- Excellent audio performance:
- THD+N ≤ 0.03% at 1 W, 1 kHz, PVDD = 12 V
- SNR ≥ 110 dB (A-weighted), ICN ≤ 35 µVRMS
- Flexible audio I/O:
- Supports 32, 44.1, 48, 88.2, 96 kHz SR
- Supports I2S, LJ, RJ, TDM format
- Supports 3-wire digital audio interface
- Flexible processing features:
- 3-Band advanced DRC + AGL, 2 × 15 BQs
- PVDD sensing to avoid clipping distortion while voltage rail drops
- Up to 4 ms lookahead delay buffer for Hybrid-Pro algorithm audio signal tracking
- Optional 8 or 16 Hybrid-Pro DC-DC control steps with max 10 ms peak sample hold
- Flexible power supply configurations:
- PVDD: 4.5 V to 26.4 V
- DVDD and I/O: 1.8 V or 3.3 V
- Excellent integrated self-protection:
- Over-current error (OCE)
- Cycle-by-cycle current limit
- Over-temperature warning (OTW)
- Over-temperature error (OTE)
- Under, over-voltage lock-out (UVLO, OVLO)
- Easy System Integration:
- I2C Software Control
- Reduced solution size:
- Small 5 × 5 mm package
- Fewer passives required compared to open-loop Class-D devices
- No bulky electrolytic capacitors or large inductors required for most applications
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Description
TAS5825P is a stereo high-efficiency Closed-Loop audio Class-D audio amplifier with an advanced Hybrid-Pro algorithm to improve system efficiency and reduce heat without clipping distortion.
The supply voltage (PVDD) of an audio amplifier is normally provided by a DC-DC converter. Compared with a fixed PVDD, a variable PVDD that fluctuates based on the audio signal significantly improves efficiency, lowers idle current, and reduces heat.
The powerful audio DSP core of TAS5825P implements a proprietary algorithm called Hybrid-Pro. The Hybrid-Pro algorithm detects the upcoming audio power demand and provides a PWM control signal for the former DC-DC converter via the Hybrid-Pro feedback pin (HPFB). The TAS5825P supports up to 4 ms of delay buffer to look ahead at the audio signal and prevent audio clipping distortion. In various experiments, the TAS5825P increased the runtime of 1S and 2S batteries by greater than 50% while continuously playing music.
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | TAS5825P 4.5 V to 26.4 V, 38 W Stereo, Digital Input, High Efficiency Closed-Loop Class-D Audio Amplifier with Hybrid-Pro Algorithm datasheet | May 31, 2019 |
Technical article | How to extend battery life and reduce power consumption with Class-D audio amplifiers | Dec. 10, 2020 | |
Technical article | How audio amplifiers with integrated DSPs are increasing efficiency | Dec. 08, 2020 | |
User guide | TAS5825PEVM Evaluation Module User's Guide | Sep. 03, 2019 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
Features
- Smart Piezo driver algorithm for Piezo applications
- Runs with I2C initialization
- GUI control via USB port
Description
Step 1: Hardware
Order TAS5825P Evaluation Module
Step 2: Software
Request access to PurePath™ Console and TAS5825P Software
Step 3: Training
Download the TAS5825P Evaluation Module User's Guide
The TAS5825PEVM showcases the lastest TI digital input class-D audio amplifier with Hybrid-Pro (...)
Features
- TAS5825P Hybrid-Pro algorithm for audio envelope tracking
- Integrates LM5155 to provide customer system design reference
- Key customer 1 cell battery input, boost to 5V ~ 16V audio power rail user case
- Flexible TAS5825P Hybrid-Pro output to customer system board capbility
- Demonstration, evaluation and (...)
Software development
Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
VQFN (RHB) | 32 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
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Support & training
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