MP8046DF-LF-Z - 5A 28V Class-D Driver | MPS
MPN: MP8046DF-LF-Z ✓ Hoạt độngMP8046DF-LF-Z Tóm tắt
A Class-D audio power driver is a semiconductor that accepts PWM-modulated audio signals and controls external power MOSFETs. The MP8046 belongs to the hierarchy PWM input power driver, audio power IC, amplifier IC, and power-management semiconductor. Its dual-channel architecture allows independent operation, while the bridge-tied-load option can increase output voltage to the load and eliminate the need for an output coupling capacitor.
The manufacturer identifies a 28 V maximum supply capability and a 5 A device rating. The operating range begins at 7.5 V, and the supplied distributor listing reports a 2.4 mA current figure. Protection and control features include low-current shutdown, standby mode, input undervoltage protection, current limit, thermal shutdown, and a fault-flag output. Both channels use standard logic signals, simplifying control from a digital audio processor or Class-D PWM controller.
The MP8046 is available in a 20-pin TSSOP with exposed pad, identified by distributors as TSSOPF-20-EP. The exposed pad supports heat transfer from the driver to the PCB, which is important because MOSFET-gate drive and power-stage losses can create substantial board-level heating. The manufacturer also publishes the EV8046DF-00A evaluation board for evaluating this high-current, dual-channel half-bridge device with PWM-modulated inputs.
Typical uses include stereo single-ended audio outputs, bridge-tied-load speaker drives, powered speaker systems, soundbars, and external-MOSFET Class-D stages. Configuration flexibility is particularly useful when one amplifier platform must support several output topologies or channel counts. The PWM inputs allow the upstream modulator to retain control over modulation, dead time, and signal processing.
When designing the power stage, verify that external MOSFETs, gate resistors, input filtering, and the PCB thermal design satisfy the driver requirements. The exposed pad must be connected to the appropriate ground plane and thermal copper rather than treated as an unused package lead. Account for shutdown behavior, undervoltage lockout, current limiting, and fault-flag handling in the system control sequence.
This product record combines the verified manufacturer capabilities, distributor specifications, ordering references, and design-oriented application context. It also clearly identifies where verified pricing, pin-level assignments, and true pin-compatible replacements are unavailable rather than presenting unsupported engineering assumptions.
Bộ thay thế dễ dàng lắp đặt cho MP8046DF-LF-Z — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
MP8042DF-LF-P
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MP8005DF-LF-Z
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MP8046DF-LF-Z Tỷ lệ tối đa & tính chất điện
| Product Type | Dual-channel Class-D PWM input power driver |
| Number of Channels | 2 channels |
| Cấu hình đầu ra | Configurable dual half-bridge or full-bridge |
| Maximum Device Current | 5 A |
| Maximum Supply Voltage | 28 V |
| Operating Supply Voltage Range | 7.5 V to 28 V |
| Listed Current | 2.4 mA |
| Input Type | 2 single-ended PWM inputs |
| Input Logic | Standard logic signals |
| Standby Mode | Supported |
| Shutdown Mode | Low-current shutdown supported |
| Input Undervoltage Protection | Supported |
| Giới hạn dòng điện | Supported |
| Tắt nhiệt | Supported |
| Fault Flag | Fault flag signal output |
| Khoảng nhiệt độ hoạt động | -40 °C to +85 °C |
| Hộp | 20-pin TSSOPF with exposed pad |
| Trạng thái RoHS | RoHS |
Hướng dẫn cấu hình chân MP8046DF-LF-Z 20-pin tssopf with exposed pad
Cấu hình chân cho MP8046DF-LF-Z (20-pin tssopf with exposed pad 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 MP8046DF-LF-Z.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
MP8046DF-LF-Z phù hợp cho 6 Áp dụngs: Stereo Single-Ended Class-D Amplifier, Bridge-Tied-Load Speaker Drive, Powered Speaker and Soundbar Output, External-MOSFET Audio Power Stage, Multichannel Home Audio Amplifier, High-Current PWM Power Amplifier Prototype.
Stereo Single-Ended Class-D Amplifier
The MP8046DF-LF-Z fits a stereo single-ended output stage because it provides two independent PWM input channels and a listed 5 A device rating. The external MOSFETs determine much of the achievable speaker current, while the driver handles PWM gate control for both channels. According to the manufacturer product page, each channel can operate independently as a stereo single-ended audio amplifier. Designers should select MOSFETs and gate resistors for the 7.5 V to 28 V supply range, verify thermal performance, and use the exposed pad as a dedicated thermal and ground connection. The EV8046DF-00A provides a manufacturer-supported platform for evaluating the MP8046 with PWM-modulated inputs.
Được đề xuất
Bridge-Tied-Load Speaker Drive
The MP8046DF-LF-Z can be configured as a complementary bridge-tied-load driver, allowing the two channels to drive a floating speaker without the same single-ended ground reference. The verified device rating is 5 A with a maximum supply voltage of 28 V, and its operating range starts at 7.5 V. Bridge-tied-load operation increases the voltage presented to the load compared with a single-ended arrangement, so MOSFET voltage rating, switching losses, protection behavior, and output filtering require careful review. The manufacturer datasheet confirms that the MP8046 supports both configurable half-bridge and full-bridge operation.
Được đề xuất
Powered Speaker and Soundbar Output
The MP8046DF-LF-Z is suitable for the power stage of a powered speaker or soundbar because it accepts two PWM-modulated audio channels and supports a 28 V maximum supply. Its configurable topology allows a designer to use dual single-ended outputs or a bridge-tied-load arrangement without changing the driver package. The external power MOSFETs, output inductors, and filter components determine amplifier efficiency and distortion, so device selection should not be treated as a complete audio solution. The documented thermal shutdown, current limit, undervoltage protection, standby mode, and fault flag support controlled behavior in consumer audio equipment.
Được đề xuất
External-MOSFET Audio Power Stage
The MP8046DF-LF-Z is designed to drive external power MOSFETs rather than include a conventional integrated output-transistor stage. This arrangement gives the system designer control over MOSFET size, on-resistance, switching behavior, and heat spreading. The verified 5 A rating and 28 V maximum voltage describe the driver platform, while continuous amplifier output also depends on the selected MOSFETs and PCB thermal design. Gate resistors and source resistors should be engineered with the MOSFET data sheet in mind, while the MP8046's current-limit and thermal-shutdown functions provide additional system protection.
Được đề xuất
Multichannel Home Audio Amplifier
The dual-channel MP8046DF-LF-Z can support multichannel audio systems when each power stage uses a separate device or when only two channels are required by a particular module. Its two independently controllable channels accept PWM signals from the upstream modulator, which helps separate amplification from audio decoding and digital signal processing. The manufacturer confirms support for stereo single-ended and bridge-tied-load configurations. A multichannel design should plan shutdown sequencing, standby control, fault-flag monitoring, undervoltage behavior, and thermal management across every driver and external MOSFET stage to avoid uneven startup or shutdown behavior.
Được đề xuất
High-Current PWM Power Amplifier Prototype
The MP8046DF-LF-Z and EV8046DF-00A provide a practical path for prototyping a high-current, dual-channel Class-D output stage. The device accepts PWM-modulated inputs and is rated for 5 A and 28 V in the supplied distributor data, making it appropriate for controlled evaluation of external power-MOSFET layouts. During bring-up, engineers should verify logic levels, startup sequencing, standby and shutdown behavior, fault-flag response, undervoltage protection, and current limiting before connecting a speaker load. Thermal evaluation should include the exposed pad, PCB copper, MOSFET dissipation, and the intended enclosure.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MP8046DF-LF-Z — 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 |
|---|---|
| Package | 20-pin TSSOPF with exposed pad |
| Brand | Monolithic Power Systems |
| Device Type | Dual-channel Class-D PWM input power driver |
| Channel Count | 2 channels |
| Listed Maximum Current | 5 A |
| Maximum Supply Voltage | 28 V |
| Operating Supply Range | 7.5 V to 28 V |
| Output Configuration | Configurable half-bridge or full-bridge |
| Protection Functions | Input undervoltage protection, current limit, and thermal shutdown |
| Control and Status | Standby, low-current shutdown, standard logic inputs, and fault flag |
| Operating Temperature Range | -40 °C to +85 °C |
| RoHS Status | RoHS |
Bảo phân biệt quan trọng
- Configurable output topology (vsMP8042DF-LF-P)
- Higher listed current class (vsMP8042DF-LF-P)
- Broader system-level protection and status (vsMP8005DF-LF-Z)
- Dual-channel architecture with independent operation (vsSingle-channel alternatives)
Ghi chú thiết kế
Treat the exposed pad as an essential thermal and electrical feature rather than an optional center lead. Connect it to the package ground plane using a land pattern that supports heat flow, provide copper on both sides where the PCB design permits, and avoid thermal isolation by narrow necking. The MP8046 can deliver up to 5 A through its driver circuitry, so MOSFET gate drive, PCB loss, and adjacent-component heat must be evaluated together.
Keep the MP8046 close to the external power MOSFETs and place gate-drive traces as short and symmetric as practical. Use appropriate gate resistors to suppress unwanted high-frequency oscillation, and route the high-current power paths separately from sensitive PWM and logic traces. Because the MP8046 accepts PWM inputs, return-current paths and ground references should be planned so switching currents do not add noise to the control signals.
Do not treat the MP8046 as a self-contained audio amplifier. It is a PWM input power driver that requires external power MOSFETs, gate-drive components, and an appropriate output network. Also avoid assuming that the listed 5 A rating guarantees a particular continuous speaker current: that outcome also depends on MOSFET selection, the 7.5 V to 28 V supply, switching losses, load impedance, and the PCB thermal design.
Thông tin tuân thủ
RoHS compliance is stated in the verified JLCPCB product listing. No verified REACH, lead-free, halogen-free, conflict-minerals, or automotive-qualification statement was supplied.
