TDA7491HV：20W+20W dual BTL class-D audio amplifier
The TDA7491HV is a dual BTL class-D audio amplifier with single power supply designed for LCD TVs and monitors.
Thanks to the high efficiency and exposed-pad-down (EPD) package no separate heatsink is required.
The TDA7491HV is pin-to-pin compatible with the TDA7491P and TDA7491LP.
Key Features
- 20 W + 20 W continuous output power: RL = 8 Ω, THD = 10% at VCC = 18 V
- Wide-range single-supply operation (5 V - 18 V)
- High efficiency (η = 90%)
- Four selectable, fixed gain settings of nominally 20 dB, 26 dB, 30 dB and 32 dB
- Differential inputs minimize common mode noise
- No ‘pop’ at turn-on/off
- Standby and mute features
- Short-circuit protection
- Thermal overload protection
- Externally synchronizable
Product Specifications
| Description | Version | Size |
|---|---|---|
| DS5624: 20 W + 20 W dual BTL class-D audio amplifier | 7.0 | 763 KB |
Application Notes
Product Evaluation Tools
| Part Number | Manufacturer | Description |
|---|---|---|
| STEVAL-CCA042V1 | 20 W + 20 W dual BTL class-D audio amplifier demonstration board based on the TDA7491HV |
Sample & Buy
| Part Number | Package | Packing Type | Operating Temperature (°C) (min) | Operating Temperature (°C) (max) | Unit Price (US$) * | Quantity | ECCN (EU) | ECCN (US) | Country of Origin |
|---|---|---|---|---|---|---|---|---|---|
| TDA7491HV13TR | PowerSSO 36 | Tape And Reel | 0 | 70 | 1.953 | 1000 | NEC | EAR99 | MALAYSIA |
Quality & Reliability
| Part Number | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|
| TDA7491HV13TR | PowerSSO 36 | Industrial | Ecopack2 |
- circuit_diagram_14242_thumbnail.png TDA7491HV
- 10 W + 10 W dual BTL class-D audio amplifier demonstration board based on the TDA7491P STEVAL-CCA028V1
- 20 W + 20 W dual BTL class-D audio amplifier demonstration board based on the TDA7491HV STEVAL-CCA042V1
- 25 W mono BTL class-D audio amplifier demonstration board based on the TDA7491MV TDA7491P
- 5 W + 5 W dual BTL class-D audio amplifier demonstration board based on the TDA7491LP STEVAL-CCA029V1
- 50 W + 50 W dual BTL class-D audio amplifier demonstration board based on the TDA7492 STEVAL-CCA027V1
- Dual-BTL class-D audio amplifier demonstration board based on the TDA7498E TDA7491P
