TAS5112DFD - 50W Stereo Class-D Amplifier | Texas Instruments
MPN: TAS5112DFD ✓ Hoạt độngTAS5112DFD Tóm tắt
A Class-D digital audio power stage is an amplifier category that converts digital audio information into high-frequency switching waveforms and reconstructs the audio signal at the speaker output. Compared with a conventional linear power amplifier, the TAS5112DFD architecture is intended to provide higher power efficiency, typically reaching 90% into a 6 ohm load. The TAS5112DFD operates as part of the power-amplifier stage in a larger digital audio system.
Key features include 50 W per channel in bridge-tied-load operation into 6 ohms, a listed 62 W maximum output power, and typically 90% power efficiency into a 6 ohm load. Dynamic range reaches 95 dB when used with the TAS5026D. Total harmonic distortion plus noise is listed below 0.1% for the TAS5026D system at 1 W and below 0.2% at the stated full-power condition.
The device includes a self-protecting design covering undervoltage conditions and other fault states. Its digital input architecture makes it suitable for systems using a compatible digital audio PWM processor from the TAS50XX family. Differential outputs are intended for bridge-tied-load speaker connections, allowing the two amplifier channels to develop the required voltage swing without a conventional single-ended output stage.
Typical uses include compact stereo loudspeakers, multimedia speaker systems, home-audio amplification, digital audio source modules, and powered speaker designs. The 50 W per-channel capability is particularly relevant to compact systems that need more output than a low-power integrated headphone or line amplifier can provide while retaining Class-D efficiency.
Thermal design is essential because the power stage dissipates energy as heat, especially at sustained high output power. Follow the manufacturer datasheet for the exposed-pad layout, PCB copper requirements, thermal-interface guidance, supply decoupling, output-filter component values, and recommended inductor and capacitor selections. The 56-pin HTSSOP footprint also requires careful assembly planning because its leads and exposed thermal pad are fine-pitch features.
This page consolidates the identified electrical ratings, package information, practical application guidance, and design considerations for engineers evaluating the TAS5112DFD. It also distinguishes documented device characteristics from application-dependent performance and highlights the unresolved need for a confirmed pin-to-pin drop-in replacement.
Bộ thay thế dễ dàng lắp đặt cho TAS5112DFD — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Không có bộ thay thế dễ dàng lắp đặt sẵn có cho sản phẩm này.
Yêu cầu các bộ thay thếTAS5112DFD Tỷ lệ tối đa & tính chất điện
| Product Type | Stereo Class-D digital audio power stage |
| Channel Count | 2 channels |
| Cấu hình đầu ra | Differential, bridge-tied-load |
| Output Power | 50 W per channel into 6 ohm |
| Listed Maximum Output Power | 62 W |
| Supply Voltage Range | 16 V to 25.5 V |
| Power Efficiency | Typically 90% into a 6 ohm load |
| Dynamic Range | 95 dB with TAS5026D |
| THD+N with TAS5026D | Less than 0.1% at 1 W |
| THD+N with TAS5026D | Less than 0.2% at full-power condition |
| Maximum Load Resistance | 8 ohm |
| Maximum Power Dissipation | 4500 mW |
| Hộp | 56-pin HTSSOP |
| Kiểu lắp đặt | Surface mount |
| Khoảng nhiệt độ hoạt động | 0 C to 70 C |
| Protection Features | Self-protecting design including undervoltage protection |
| Digital Interface | Digital audio input |
Hướng dẫn cấu hình chân TAS5112DFD 56-pin htssop
Cấu hình chân cho TAS5112DFD (56-pin htssop gói). Thành phần số hiệu này có chân đầu vào, đầu ra và nguồn cung cấp. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết cấu hình chân bù, bù trừ và chân kích hoạt. Hoàn hảo cho điều kiện tín hiệu và mạch khuếch đại.
Không có dữ liệu chân cụ thể sẵn có cho TAS5112DFD.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
TAS5112DFD phù hợp cho 6 Áp dụngs: Compact Stereo Speaker Amplifier, Powered Multimedia Speaker, Home Audio Speaker Power Stage, Digital Audio Source Module, Digital Active Speaker Driver, Multi-Room Audio Speaker.
Compact Stereo Speaker Amplifier
The TAS5112DFD fits compact stereo speaker systems requiring 50 W per channel into a 6 ohm load without using two separate monolithic power amplifiers. Its two-channel architecture and differential outputs support bridge-tied-load wiring, while the listed 16 V to 25.5 V operating range provides a defined basis for power-supply design. Typical efficiency of 90% into 6 ohms is especially useful in compact enclosures where waste heat must be removed. The implementation must include the manufacturer-specified output filters, local supply decoupling, exposed-pad thermal design, and protection circuitry. Confirm continuous loudspeaker power and thermal performance before production because headline output power does not represent usable power at every temperature or load impedance.
Được đề xuất
Powered Multimedia Speaker
A powered multimedia loudspeaker can use the TAS5112DFD to convert digital audio data into a differential Class-D speaker drive. Its listed 50 W per-channel capability into 6 ohms is appropriate for a compact powered speaker that must reproduce high-level program material efficiently. The digital input architecture also allows the amplifier stage to operate with a compatible digital audio processor rather than requiring the audio path to return to an analog input. The enclosure should provide controlled airflow or adequate copper spreading around the 56-pin HTSSOP. Output filters must be selected using the manufacturer reference design, and the supply should be sized for two-channel peak demand while maintaining the required 16 V to 25.5 V operating range.
Được đề xuất
Home Audio Speaker Power Stage
The TAS5112DFD can serve as the power-amplifier section of a home-audio speaker system requiring efficient stereo operation and differential outputs. With 50 W per channel into 6 ohms and typically 90% efficiency into the specified load, it offers a practical power level for compact bookshelf or powered-speaker designs. Its 62 W listed maximum output power requires careful interpretation because sustained operation near the limit depends on supply headroom and heat removal. The board should follow the exposed-pad and land-pattern guidance in the manufacturer datasheet, and speaker wiring should avoid presenting impedance values outside the intended load during normal operation. Digital-audio synchronization and control should be verified with the selected processor.
Được đề xuất
Digital Audio Source Module
The TAS5112DFD is appropriate for a digital audio source module that accepts digital samples and drives local loudspeakers without an intervening analog power-amplifier stage. Its digital input supports a direct path from a compatible PWM processor, while the differential outputs reduce the need for a single-ended output network. The specified 95 dB dynamic range with TAS5026D and THD+N below 0.1% at 1 W provide useful system-level context when evaluating the complete signal chain. Board implementation should preserve short digital-control and feedback paths, use the specified output-filter topology, and decouple the power supply close to the device. Because the stage can dissipate substantial heat at high output, thermal analysis is necessary for a module enclosed on both sides.
Được đề xuất
Digital Active Speaker Driver
The TAS5112DFD can be used in an active speaker driver where a digital source, crossover, or DSP feeds a dedicated Class-D power stage. Its stereo configuration permits independent left and right amplification in one package, while the differential output topology supports balanced speaker drive. The 50 W per-channel rating into 6 ohms gives active speakers useful headroom relative to small analog designs, and typical efficiency of 90% helps limit internal heat. Signal timing and control must be coordinated with the audio processor, while the output filters and feedback network must follow the manufacturer recommendations. Validate phase response, idle-channel behavior, and protection recovery against the finished loudspeaker before production release.
Được đề xuất
Multi-Room Audio Speaker
The TAS5112DFD is well suited to a multi-room audio speaker module when local digital audio distribution and efficient two-channel amplification are required. The 16 V to 25.5 V supply range permits use with a conventional intermediate power rail, while the two differential outputs can drive a pair of 6 ohm drivers. The device's digital input helps maintain a clean source path when the module receives audio from a central processor. Design work should account for supply isolation between rooms, channel mute or enable sequencing, protection-state recovery, and thermal conditions inside shared furniture or wall-mount enclosures. Use the manufacturer reference circuit to select the output inductors, capacitors, feedback network, and exposed-pad copper arrangement.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho TAS5112DFD — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này |
|---|---|
| Brand | Texas Instruments |
| Package | 56-pin HTSSOP |
| Channel Count | 2 channels |
| Output Power | 50 W per channel into 6 ohm |
| Listed Maximum Output Power | 62 W |
| Supply Voltage Range | 16 V to 25.5 V |
| Power Efficiency | Typically 90% into a 6 ohm load |
| Dynamic Range | 95 dB with TAS5026D |
| Output Configuration | Differential, bridge-tied-load |
Bảo phân biệt quan trọng
- High stereo output power in one integrated package (vsTAS5111DADR)
- Defined bridge-tied-load stereo implementation (vsTAS5112ADCA)
- Documented efficiency for powered-speaker designs (vsTAS5162)
Ghi chú thiết kế
Treat the 56-pin HTSSOP exposed thermal area as a primary heat-spreading structure. Estimated: two channels at 50 W each produce 100 W of acoustic output; at 90% efficiency, total input power is about 111 W and total conversion loss is about 11 W. Distribute that heat through the PCB copper area and enclosure using the manufacturer land-pattern and thermal guidance. Validate worst-case ambient temperature, output level, supply voltage, and load impedance before fixing the enclosure design.
Place input, feedback, and output-filter components according to the manufacturer reference layout. Keep high-current speaker-output paths short, wide, and separated from digital control and feedback traces to reduce voltage-drop loss and susceptibility to switching noise. Use the specified output inductors and capacitors rather than substituting values based only on a generic Class-D filter example. The exposed pad requires the package-specific copper pattern and assembly process for reliable heat transfer.
Design the 16 V to 25.5 V supply for the two-channel peak and thermal conditions rather than the average listening level. Place local high-frequency decoupling at the power pins and verify startup, undervoltage protection, and recovery behavior. The listed 4500 mW maximum power dissipation and 62 W maximum output rating are device limits, not guaranteed continuous operating points. Use the manufacturer applications information to determine whether additional supply filtering or protection is required.
Preserve the recommended separation between sensitive feedback or digital-control traces and the high-current switching outputs. Route differential outputs as a pair with consistent geometry and minimize loop area in the output-filter network. Keep test points and debug connections away from exposed-pad and no-connect areas unless expressly allowed by the pinout. Check every connection against the 56-pin pin-description table because a mechanically similar HTSSOP outline does not guarantee electrical compatibility.
Thông tin tuân thủ
The verified product pages do not provide explicit compliance declarations for the exact TAS5112DFD. RoHS, REACH, AEC-Q100, lead-free, halogen-free, and conflict-minerals status therefore remain unknown.
