WMSIC Electronic Components

Infineon IR4322MTRPBF

ModelIR4322MTRPBF
PackagePQFN-44(7x7)
BrandInfineon
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Infineon IR4322MTRPBF
Type
INFINEON
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
INFINEON
Electronic Component
IR4322MTRPBF
Electronic Component
1
Package
PQFN-44(7x7)
Electronic Component
Audio Power Amplifier
Electronic Component
1g
Electronic Component
1
Power Amplifier Type
D Power Amplifier
Features
Switch
Electronic Component
BM0230659796
Operating Temperature
40℃~+100℃
Channel Count
2
Speaker Channel Count
Electronic Component
Electronic Component
Electronic Component
Electronic Component
3000

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

IR4322MTRPBF 产品概述

一、产品概述

IR4322MTRPBF 是英飞凌(Infineon)推出的一款高集成度 D 类立体声功率放大器 IC,封装为 PQFN-44(7 mm x 7 mm)。器件针对便携式音响、电视、机顶盒、声卡及车载音频等对效率、声学性能及尺寸有较高要求的应用场景设计。该芯片提供双声道(2 通道)输出、两对差分输入、自动静音/免噪音开关功能,同时具备低失真与宽工作温度范围,适合工业级与消费类产品应用。

二、关键参数

  • 功放类型:D 类功放
  • 声道数:双声道(立体声)
  • 输入:2 对差分输入通道
  • 总谐波失真 + 噪声(THD+N):0.02%(典型条件)
  • 功能特性:自动静音 / 免噪音开关(mute / pop-less switching)
  • 工作温度范围:-40 ℃ ~ +100 ℃
  • 封装:PQFN-44(7 mm x 7 mm)
  • 品牌:Infineon(英飞凌)
    注:具体电气参数(如最大功率、供电电压范围、限流/过温保护阈值等)请以官方数据手册为准。

三、功能特点

  • 低失真:THD+N 典型值 0.02%,在音频回放中能提供清晰、自然的声音还原。
  • 差分输入:支持两对差分输入,抑制共模噪声,提高系统抗干扰能力,适合长线传输或噪声环境。
  • 自动静音/免噪音切换:提供上电/关断瞬态控制(soft-start / mute),减少扬声器“噼啪”声,提升用户体验。
  • 高效率:作为 D 类功放,转换效率高、器件功耗低,适合电池供电或对热设计敏感的场合。
  • 宽温工作:-40 ℃ 到 +100 ℃,覆盖多数工业与汽车电子温度需求(实际可靠性与寿命需参考数据手册与设计热流评估)。

四、封装与热管理

PQFN-44(7x7)封装提供紧凑尺寸与良好散热能力。封装中通常带有中心外露焊盘(exposed pad),建议在 PCB 设计中:

  • 在裸露焊盘下方布置足够数量的热通孔(thermal vias),与底层散热层相连以加速热传导。
  • 在输出引脚与供电引脚周围留出较宽的铜箔以利散热和降低寄生阻抗。
  • 遵循制造商对回流焊工艺的建议,保证可靠的焊接质量与长时间热稳定性。

五、应用场景

  • 便携式蓝牙音箱与智能音箱
  • 机顶盒与家庭媒体播放器
  • 电视与显示器内置音频放大器
  • 汽车车载音频(在满足汽车级认证与散热要求下)
  • 多媒体外设(声卡、小型功放模块)

六、设计与布局建议

  • 电源去耦:在 IC 电源引脚附近放置高频陶瓷电容(例如 0.1 µF)与较大容量的电解/钽电容并联,以滤除高频噪声并提供瞬态电流。
  • 输入保护与滤波:差分输入两端应保持阻抗平衡,必要时加入共模电感或 RC 滤波以抑制射频干扰与稳定系统。
  • 输出走线:D 类输出为高 dv/dt 信号,走线应尽量短且成对布线,避免与模拟敏感线并行。必要时在扬声器端采用差分屏蔽或布局隔离。
  • 布局隔离:模拟输入、数字控制与功率地应合理分区,保证信号参考清晰。将功率地与逻辑地通过单点回连或低阻路径处理,以减少地弹噪。
  • 软启动与静音逻辑:按照数据手册的时序要求驱动 mute 引脚,确保开关瞬态不会引入可闻噪声。

七、典型注意事项与采购信息

  • 在最终设计中务必参考并遵循英飞凌官方数据手册中给出的绝对最大额定值、典型应用电路及 PCB 布局指南。
  • 对于要求严格的热与可靠性设计,应进行功率损耗估算与温升仿真,必要时增加散热片或金属散热结构。
  • 订购信息:器件型号 IR4322MTRPBF,封装 PQFN-44(7x7),品牌 Infineon。为获得最新库存、物料编号(MPN)及管脚封装图,请联系英飞凌授权分销商或访问官方资料页。

总结:IR4322MTRPBF 为一款集成度高、低失真、带自动静音功能的双声道 D 类功放,适合对声音质量、效率与板级尺寸有较高要求的音频产品。合理的电源设计与 PCB 布局将有效发挥器件的性能优势。

Request for quote

Send RFQ

Use the form for single models, category sourcing, and multi-line BOM requirements.

Send your target model and quantity.

Product sourcing intelligence

Model, package, availability, and BOM fit reviewed before quotation.

WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.

Electronic component model and package intelligence review on an ESD-safe inspection bench

Model & package intelligence

Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.

BOM matching and alternative component comparison workstation with protected IC samples

BOM matching & alternatives

BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.

Electronic component sourcing availability dashboard with ESD-protected samples

Sourcing availability signal

Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.

Buyer sourcing scenarios

Examples of how common component sourcing requests are organized.

Typical RFQ scenarios based on the WMSIC form fields, catalog data, manual review steps, and shipment preparation workflow.

The buyer shares the full part number, package requirement, quantity, destination, and available product photos so the quotation can record the exact version under review.

Package confirmation Typical RFQ workflow

A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.

Mixed BOM triage Typical RFQ workflow

The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.

Obsolete-part review Typical RFQ workflow

Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.

Small-batch request Typical RFQ workflow

Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.

Repair batch evidence Typical RFQ workflow

When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.

Model suffix clarification Typical RFQ workflow

Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.

Export handoff Typical RFQ workflow

The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.

Replenishment inquiry Typical RFQ workflow

Related products

Packaged components ready for RFQ.