Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
BELLING BL6281GSO
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- BELLING BL6281GSO
- Type
- BELLING
- Minimum package
- 4000 卷
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- BELLING
- Electronic Component
- BL6281GSO
- Electronic Component
- 1
- Package
- SOP-8
- Electronic Component
- Audio Power Amplifier
- Electronic Component
- 0.239g
- Electronic Component
- 1
- Power Amplifier Type
- AB Power Amplifier
- Features
- Analog Voltage; / Switch
- Electronic Component
- BM0263567299
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 2.2V~5.5V
- Output Power
- 1.7Wx1@4Ω；1.1Wx1@8Ω
- Static Current(Iq)
- 3mA
- Electronic Component
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
BL6281GSO 音频功率放大器产品概述
一、产品定位与核心特性
BL6281GSO是贝岭（BELLING）推出的小型化低功耗AB类音频功率放大器，专为电池供电及紧凑电子设备设计，兼顾音质还原与能效表现。核心特性包括：宽电压适配、低失真噪声、低静态电流、高电源纹波抑制、工业级宽温能力，以及SOP-8贴片封装的易集成性，可快速落地各类音频输出场景。
二、关键性能参数详解
BL6281GSO的参数针对便携与工业应用优化，核心指标如下：
- 输出功率：支持1.7W单声道输出（4Ω负载，10% THD+N）、1.1W单声道输出（8Ω负载，10% THD+N），可驱动常见便携音箱、耳机等负载，满足日常音频播放需求。
- 工作电压：2.2V~5.5V，覆盖单节锂电池（3.7V典型）、2节干电池（3V）、USB 5V电源等常见供电模式，无需额外电源转换。
- 失真与噪声：THD+N低至0.05%（1kHz，1W输出，4Ω负载），保证音频信号高还原度，减少背景噪声与信号失真。
- 静态电流：典型值仅3mA，待机/低负载状态下功耗极低，有效延长电池续航。
- 电源纹波抑制：PSRR达60dB（1kHz），可抑制电源纹波干扰，提升音频纯净度。
- 温度适应：-40℃~+85℃工业级宽温，稳定工作于户外、车载等恶劣环境。
三、封装与引脚配置
BL6281GSO采用标准SOP-8贴片封装，尺寸约4.9mm×3.9mm×1.5mm，体积紧凑，适合小型化设计。典型引脚功能（参考通用AB类功放布局）：
引脚 功能 引脚 功能 1 VDD（电源输入） 5 FB-（负反馈输入） 2 IN+（正相音频输入） 6 FB+（正反馈输入） 3 IN-（反相音频输入） 7 OUT+（正相输出） 4 GND（接地） 8 OUT-（反相输出）引脚对称布局，便于PCB布线；贴片封装可通过回流焊快速焊接，降低生产难度。
四、典型应用场景
BL6281GSO凭借多场景适配能力，广泛应用于：
- 便携音频：蓝牙音箱、MP3/MP4、智能手环/手表的音频输出；
- 车载系统：倒车提示音、车载小喇叭、蓝牙免提的音频驱动；
- 消费电子：电子书阅读器、游戏机手柄、便携式投影仪的音频模块；
- 工业安防：小型报警提示器、仪器仪表告警、门禁语音提示（宽温适配）。
五、应用优势与设计注意事项
5.1 核心优势
- 多电源兼容：宽电压覆盖常见供电模式，简化电路设计；
- 音质能效平衡：低失真+低静态电流，兼顾音频品质与电池续航；
- 抗干扰强：高PSRR抑制电源噪声，提升音频纯净度；
- 宽温可靠：工业级温度范围，适应户外/车载恶劣环境；
- 易集成：紧凑封装，适配小型化产品布局。
5.2 设计注意事项
- 负载匹配：建议使用4Ω/8Ω负载，避免低阻抗（如2Ω）导致功率管过热；
- 电源滤波：VDD引脚并联100nF陶瓷电容，提升纹波抑制效果；
- 散热设计：1.7W持续输出时，可增加PCB敷铜面积或贴小型散热片；
- 焊接规范：回流焊峰值温度≤260℃，避免损坏芯片。
BL6281GSO作为高性价比AB类功放，在便携音频、车载及工业领域具有广泛适用性，是小型化音频输出电路的理想选择。
Request for quote
Send RFQ
Use the form for single models, category sourcing, and multi-line BOM requirements.
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.
BOM matching & alternatives
BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.
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.
A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.
The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.
Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.
Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.
When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.
Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.
The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.
Related products
Packaged components ready for RFQ.
