Overview
The TPA0211DGNR is a 2-W mono bridge-tied-load (BTL) audio power amplifier manufactured by Texas Instruments. This device is designed to drive speakers with as low as 4-Ω impedance, making it ideal for small wireless communicators, notebook PCs, PDAs, and any application requiring a mono speaker or stereo headphones. The amplifier operates from a supply voltage range of 3 V to 5 V and can deliver 2 W of power into a 4-Ω speaker from a 5-V supply. It features high-impedance CMOS inputs and a shutdown function that reduces current consumption to 1 µA, making it suitable for battery-dependent applications.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | 8-pin HVSSOP (DGN), MSOP-PowerPAD |
| Operating Temperature Range (°C) | -40 to 85 |
| Analog Supply Voltage (V) | 3 to 5.5 |
| Output Power (W) | 2 W into 4 Ω from 5 V, 0.6 W into 4 Ω from 3 V |
| Quiescent Current (mA) | 4 mA typical at 5 V and 3 V |
| Shutdown Current (µA) | 1 µA typical |
| THD + N @ 1 kHz | 0.2% in BTL mode |
| PSRR (dB) | 58 dB |
| Speaker Channels | Mono |
| RoHS Compliance | Yes |
Key Features
- Wide power supply compatibility: 3 V to 5 V
- Low supply current: 4 mA typical at 5 V and 3 V
- Shutdown control with TTL-compatible input: 1 µA typical in shutdown mode
- Space-saving, thermally-enhanced MSOP-PowerPAD packaging
- High-impedance CMOS inputs that can be used as summing nodes
- Internal gain configuration: –1.25 V/V in SE mode and –2.5 V/V in BTL mode
Applications
- Small wireless communicators
- Notebook PCs
- PDAs
- Portable audio systems
- Any application requiring a mono speaker or stereo headphones
Q & A
- What is the maximum output power of the TPA0211DGNR?
The TPA0211DGNR can deliver up to 2 W of power into a 4-Ω speaker from a 5-V supply.
- What is the operating temperature range of the TPA0211DGNR?
The operating temperature range is –40°C to 85°C.
- What is the quiescent current of the TPA0211DGNR?
The quiescent current is 4 mA typical at both 5 V and 3 V.
- Does the TPA0211DGNR have a shutdown function?
Yes, the TPA0211DGNR has a shutdown function that reduces the current consumption to 1 µA when activated.
- What is the package type of the TPA0211DGNR?
The package type is 8-pin HVSSOP (DGN) with MSOP-PowerPAD.
- Is the TPA0211DGNR RoHS compliant?
Yes, the TPA0211DGNR is RoHS compliant.
- What are the typical applications of the TPA0211DGNR?
Typical applications include small wireless communicators, notebook PCs, PDAs, and portable audio systems.
- What is the THD + N @ 1 kHz for the TPA0211DGNR?
The THD + N @ 1 kHz is 0.2% in BTL mode.
- Can the TPA0211DGNR be used as a summing node?
Yes, the high-impedance CMOS inputs can be used as summing nodes.
- What is the PSRR of the TPA0211DGNR?
The PSRR is 58 dB.
