IRS2452AM - Dual Class-D Audio Driver | Infineon
MPN： IRS2452AM ✗ 停產IRS2452AM 概覽
A Class D audio amplifier controller is a power-management and signal-conditioning semiconductor that converts an analog audio input into high-frequency switching signals for external output MOSFETs. In the signal chain, the controller sits between the audio source and the power stage; it does not itself deliver the loudspeaker output current. Its role is modulation, timing, fault handling, and output-stage control.
The verified manufacturer description identifies two integrated high-voltage, high-performance Class D audio amplifier driver channels, PWM modulators, and protections. When paired with external MOSFETs, these functions create a complete two-channel Class D audio amplifier. This architecture is useful where high audio output power is required without placing a large linear output stage inside the controller.
The IRS2452AM supports design variants involving differential or single-ended audio input and protection-control options described in the application context supplied by the verified web results. Those operating details, protection thresholds, timing values, and modulation limits must be taken from the manufacturer datasheet rather than inferred. The available verified snippets do not provide numerical output-power, voltage, frequency, or thermal ratings.
Typical uses include stereo audio receivers, powered speakers, home-theater amplifiers, soundbars, and other high-efficiency Class D power-amplifier platforms. Because the output power depends strongly on the selected external MOSFETs, transformerless or transformer-coupled topology, supply rails, modulation strategy, thermal design, and PCB layout, the complete power stage must be evaluated rather than judged from the IC alone.
For a new design, use the Infineon datasheet and application guidance to verify electrical limits, pin functions, exposed-pad handling, input and gate-drive layout, and protection behavior. For a replacement, check whether the desired mode and protection functions are preserved; the verified Infineon community result identifies IRS2452BM as pin-compatible but without the target part's BTL mode.
This page combines the verified manufacturer identity and package information, documented replacement limitations, and engineering guidance intended to make Class D controller selection more practical than a basic distributor listing.
直接替換替代品，適用於 IRS2452AM — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： IRS2452AM （相同外形與佔位） — 差異在於 Package.
IRS2452BM
✅ 直接替換📋 參考替代品（不在目錄中）
IRS2453DSTRPBF
✅ 直接替換聯絡詢價
查看資料表 →IRS2452AM 最大額定值與電氣特性
| Product Type | Dual-channel stereo Class D audio amplifier driver |
| Channel Count | 2 channels |
| Amplifier Topology | Class D |
| Control Architecture | High-voltage Class D audio amplifier drivers with PWM modulators and protections |
| External Power Stage | Requires external MOSFETs |
| 封裝 | 32-MLPQ, 7 mm x 7 mm |
| 安裝類型 | Surface mount |
| 腳位數 | 32 pins |
| Input Mode Context | Differential or single-ended input |
| Protection Control Context | Latched, nonlatched, or host-controlled shutdown functionality |
| Supplier Classification | Amplifier IC, 2-channel stereo Class D |
IRS2452AM 32-mlpq, 7 mm x 7 mm 腳位配置指南
IRS2452AM（32-mlpq, 7 mm x 7 mm 封裝）的腳位配置。 此功率元件具有閘極、汲極與源極端子。對於非極性封裝，請參閱製造商資料表以取得確切的第 1 腳方向與佈局詳細資訊。常見應用包括電源設計、馬達驅動與負載切換。
無詳細腳位定義資料： IRS2452AM.
請參閱 資料表 以查看完整腳位配置。
典型應用
IRS2452AM 適用於 6 應用s: Stereo Powered Speaker, Home Theater Amplifier, Soundbar Speaker Module, Portable Audio Amplifier, Professional Audio Power Amplifier, Multichannel Audio System.
Stereo Powered Speaker
The IRS2452AM fits a stereo powered-speaker architecture because it provides two Class D driver channels that can control external MOSFET output stages. The controller handles PWM generation and protection functions, while each MOSFET half-bridge delivers the speaker current. This separation allows the amplifier output power to be scaled through MOSFET selection rather than being fixed solely by the controller package. The verified data confirms two channels and external-MOSFET operation, but numerical output power is not available, so the final rating must be established from the datasheet and thermal analysis.
推薦
Home Theater Amplifier
A home-theater power amplifier can use the IRS2452AM for two Class D channels when the design requires a controller/driver architecture with external MOSFETs. The two-channel arrangement supports stereo or dual-channel signal paths and leaves the power-current burden on the external MOSFET stage. Practical design work must include gate-drive layout, dead-time or switching-node behavior, protection testing, thermal copper, and output filtering. The verified web material does not state a guaranteed wattage or modulation frequency, so these values must be taken from the official datasheet.
推薦
Soundbar Speaker Module
The IRS2452AM is suitable as a candidate controller for a soundbar speaker module because it integrates two Class D driver channels, PWM modulators, and protections while relying on external MOSFETs for power delivery. That architecture is useful when compactness and efficient power conversion are priorities. The board should provide very short gate-drive loops, adequate output filtering, controlled switching-node copper, and thermal paths to the external MOSFETs. Because the available verified snippets omit output-power and thermal limits, validate them against the complete amplifier reference design.
推薦
Portable Audio Amplifier
The IRS2452AM can serve in a portable or battery-powered audio system when the external MOSFETs and supply design are matched to the required output power. Class D conversion can improve efficiency relative to a linear output stage, while the controller keeps PWM modulation and protection functions together. Battery systems still require careful attention to peak current, idle consumption, thermal rise, and audible artifacts during protection events. The verified source does not provide quiescent current, battery-voltage limits, or efficiency figures, so those values must be measured or obtained from the manufacturer documentation.
推薦
Professional Audio Power Amplifier
The IRS2452AM can be evaluated for professional audio power amplifier modules that use an external-MOSFET Class D topology. The controller's dual-channel structure is suited to stereo output, while integrated protection functions can help manage abnormal load conditions when they are configured and validated correctly. Professional systems should carefully assess clipping behavior, thermal derating, output impedance, EMI, and protection recovery. The supplied verified snippets do not provide continuous, peak, or minimum-load ratings, so they are insufficient for a production amplifier specification.
推薦
Multichannel Audio System
A multichannel audio system can use the IRS2452AM as the controller for each stereo pair, allowing two channels of Class D operation per device. The approach can simplify channel organization when multiple independent speaker pairs share a common audio architecture. Each pair still requires its own external MOSFET power stage, output filter, thermal design, and protection validation. The verified manufacturer description confirms two channels but does not confirm synchronization behavior, delay specifications, or multi-device cascading, so those points must be checked in the datasheet before using multiple devices.
推薦
推薦產品摘要
工程參考資料，適用於 IRS2452AM — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | IRS2452BM | IRS2453D |
|---|---|---|---|
| Brand | Infineon Technologies | Infineon Technologies | Infineon Technologies |
| Package | 32-MLPQ (7x7 mm) | 32-MLPQ (7x7 mm) | 32-MLPQ (7x7 mm) |
主要差異化特點
- Two-channel Class D integration (對比IRS2452BM)
- External-MOSFET scaling (對比IRS2453D)
- BTL-mode retention (對比IRS2452BM)
設計說明
Place the IRS2452AM, external MOSFETs, gate resistors, and output components so that each gate-drive loop is short and compact. Keep the high-current switching loop small, route the two channels with symmetry where possible, and keep audio input and feedback traces away from switching-node copper. The verified data confirms external MOSFETs and integrated PWM drivers but does not provide a land pattern, so use the official Infineon package drawing and application guidance before layout release.
Do not treat IRS2452BM as an unconditional replacement. The verified Infineon community result says it is pin compatible but lacks BTL mode. A design that uses BTL must retain the original function or undergo a documented redesign. Also verify input mode, protection polarity, shutdown behavior, supply limits, and external MOSFET drive requirements before substituting any candidate.
The controller is only one part of the power amplifier's thermal design. MOSFET conduction loss, switching loss, output-filter loss, and PCB heat spreading can dominate total dissipation. Estimate each loss from the actual rail voltage, output current, switching frequency, transistor parameters, and operating duty cycle, then check the hottest component against its allowable temperature. The verified snippets do not supply thermal resistance or power ratings, so no numerical thermal limit should be assumed.
Class D switching energy can create EMI that varies with board size, output filter, cable length, MOSFET speed, and switching-node area. Keep the switching node small, use the manufacturer-recommended output-filter topology, provide a continuous return path, and validate radiated and conducted emissions in the final enclosure and cable configuration. Protection behavior should also be tested with realistic speaker loads because abnormal conditions can alter emissions and shutdown timing.
合規資訊
The supplied verified snippets do not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. AEC-Q100 is not applicable to the verified consumer/general audio-amplifier description, but no automotive qualification is documented.
