Overview
The TPA3117D2RHBR, produced by Texas Instruments, is a highly efficient 15W (per channel) Class-D audio power amplifier designed for driving bridged-tied stereo speakers. This amplifier features advanced EMI suppression technology, allowing the use of inexpensive ferrite bead filters at the outputs while meeting EMC requirements. The device operates with high efficiency, eliminating the need for external heat sinks, and includes integrated SpeakerGuard™ speaker protection and an adjustable power limiter.
Key Specifications
| Parameter | Min | |||
|---|---|---|---|---|
| VCC Supply Voltage | -0.3 | - | 30 | V |
| Output Power (THD+N = 10%, f = 1kHz, VCC = 16V) | - | - | 15 | W |
| Minimum Load Resistance (BTL: PVCC > 15V) | - | - | 4.8 | Ω |
| Minimum Load Resistance (BTL: PVCC ≤ 15V) | - | - | 3.2 | Ω |
| Operating Free-Air Temperature Range | -40 | - | 85 | °C |
| Operating Junction Temperature Range | -40 | - | 150 | °C |
| Switching Frequency | 290 | - | 390 | kHz |
| Quiescent Supply Current (SD = 2V, no load, VCC = 12V) | 15 | 35 | - | mA |
| Integrated 5V Regulator Output Current | - | - | 30 | mA |
Key Features
- 90% Efficient Class-D Operation, eliminating the need for heat sinks.
- Filter-Free Operation with advanced EMI suppression technology.
- SpeakerGuard™ speaker protection with adjustable power limiter.
- Differential Inputs and four selectable, fixed gain settings.
- Selectable switching frequency (290kHz or 390kHz).
- Integrated 5V regulator with up to 30 mA of output current.
- Short-circuit protection and thermal protection with auto-recovery feature.
- 5mm x 5mm QFN packaging.
Applications
- Televisions
- Consumer Audio Equipment
- All-in-One Computers
Q & A
- What is the maximum output power of the TPA3117D2RHBR?
The maximum output power is 15W per channel at 10% THD+N from a 16V supply.
- What is the operating voltage range of the TPA3117D2RHBR?
The device operates from a supply voltage range of 8V to 26V.
- Does the TPA3117D2RHBR require an external heat sink?
No, the high efficiency of the device eliminates the need for an external heat sink.
- What is the purpose of the SpeakerGuard™ feature?
The SpeakerGuard™ feature includes speaker protection and an adjustable power limiter to protect the speakers.
- What are the selectable switching frequencies of the TPA3117D2RHBR?
The device allows selection between 290kHz and 390kHz switching frequencies.
- What is the maximum output current of the integrated 5V regulator?
The integrated 5V regulator can provide up to 30 mA of output current.
- What type of packaging does the TPA3117D2RHBR use?
The device is packaged in a 5mm x 5mm QFN package.
- What are the typical applications of the TPA3117D2RHBR?
Typical applications include televisions, consumer audio equipment, and all-in-one computers.
- What is the minimum load resistance for the TPA3117D2RHBR when PVCC > 15V?
The minimum load resistance is 4.8 Ω when PVCC > 15V.
- What is the thermal protection feature of the TPA3117D2RHBR?
The device includes thermal protection with an auto-recovery feature.
