IRS20965SPBF Mono Class D Audio Driver | Infineon
料号： IRS20965SPBF ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $1.3759 | $1.38 |
| 10 | $1.28 | $12.80 |
| 100 | $1.12 | $112.00 |
| 500 | $0.98 | $490.00 |
| 1,000 | $0.87 | $870.00 |
IRS20965SPBF 概述
A Class D audio driver is a gate-driver device that converts a low-power audio or PWM signal into complementary drive signals for external power MOSFETs. The MOSFETs then perform the high-current switching required to deliver energy efficiently to a speaker. In the system hierarchy, IRS20965SPBF belongs to the semiconductor and power-management-adjacent category of Class D audio drivers, while its external MOSFET stage forms a bridge power stage. This separation allows the driver and output devices to be selected independently for voltage, current, thermal, and cost requirements.
The verified 10 V to 15 V supply range is the principal operating constraint identified in the supplied data. The 16-SOIC package provides a conventional surface-mount footprint and separates control, drive, ground, and supply connections according to the manufacturer datasheet. The -40 C to +125 C temperature range supports operation across wide environmental conditions. The Class D architecture is intended for audio systems where switching efficiency and reduced heat dissipation are important, but final amplifier performance depends on the selected MOSFETs, output filter, speaker load, PCB layout, and thermal design.
Typical applications include compact speaker amplifiers, multimedia audio equipment, USB or portable audio systems, industrial control cabinets, and external Class D amplifier modules. In these designs, IRS20965SPBF can accept a suitable audio-control signal and drive external power stages. Designers should verify signal timing, dead time, bootstrap or supply requirements, gate-drive voltage, output-device selection, and all absolute maximum ratings against the manufacturer datasheet before layout release.
The main design consideration is that the IC is not a complete power amplifier. Its external MOSFET stage must be sized for the intended speaker impedance and output power. Keep high-current switching loops compact, provide adequate decoupling, use a properly designed output filter, and thermally assess the MOSFETs rather than assuming the 16-SOIC package can dissipate their output losses.
This page combines verified distributor facts, supply information, sourcing context, application guidance, and explicit design caveats. It does not invent unreported electrical limits or alternate pinouts, and it distinguishes verified facts from parameters that must be checked in the manufacturer datasheet.
直接替换替代料： IRS20965SPBF ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
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✅ 直接替换📋 参考替代料（不在目录中）
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✅ 直接替换📋 参考替代料（不在目录中）
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✅ 直接替换📋 参考替代料（不在目录中）
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✅ 直接替换📋 参考替代料（不在目录中）
[DATA_NEEDED: verified cross-brand drop-in MPN]
✅ 直接替换📋 参考替代料（不在目录中）
IRS20965SPBF 最大额定值与电气特性
| Product Type | Mono Class D audio driver IC |
| Number of Channels | 1 channel |
| Supply Voltage Range | 10 V to 15 V |
| 工作温度范围 | -40 C to +125 C (TA) |
| 封装 | 16-SOIC, 0.154 inch body width, 3.90 mm width |
| 安装类型 | Surface mount |
| Output Architecture | Protected PWM switching and full-complement audio MOSFET drive |
| Driver Function | External high-speed power MOSFET gate driver |
| 品牌 | Infineon Technologies |
| Manufacturer Status | Active production according to Rochester Electronics listing |
| Product Category | Amplifier IC, 1-channel mono Class D |
| Application Category | Audio amplifiers and Class D audio drivers |
| Surface-Mount Package | SOIC-16 |
IRS20965SPBF soic-16 引脚配置指南
IRS20965SPBF（soic-16 封装）的引脚配置。 该功率器件具有栅极、漏极和源极端子。对于无极性封装，请参阅制造商数据手册以了解确切的引脚 1 方向和封装尺寸细节。常见应用包括电源设计、电机驱动和负载开关。
暂无详细引脚数据： IRS20965SPBF.
请参阅 数据手册 以查看完整引脚配置。
典型应用
IRS20965SPBF 适用于 6 应用s: Compact Speaker Power Stage, USB and Portable Audio, Industrial Audio Equipment, Multimedia Speaker Amplifier, External Audio Amplifier Module, Consumer Audio Control and Amplification.
Compact Speaker Power Stage
IRS20965SPBF fits compact speaker power stages because it is a dedicated mono Class D audio driver with a 10 V to 15 V supply range and a 16-SOIC footprint. Place it alongside the external MOSFET bridge, then use the device's protected PWM drive function to reduce controller complexity while retaining efficient switched audio delivery. The final output power is determined by the MOSFETs, speaker impedance, output filter, PCB thermal design, and supply capability rather than by the driver IC alone.
推荐
USB and Portable Audio
The IRS20965SPBF can support USB or portable-audio systems where efficient Class D power conversion and compact construction are useful. Its 16-SOIC package and external-MOSFET architecture allow the power stage to be scaled for the selected speaker and battery-derived supply. Designers should verify the 10 V to 15 V operating range against the actual rail, provide local decoupling, and account for the additional bulk capacitance required when driving low-impedance speakers.
推荐
Industrial Audio Equipment
For industrial audio equipment, the listed -40 C to +125 C operating temperature makes IRS20965SPBF a candidate for equipment operating across broad environmental conditions. The external-MOSFET arrangement permits output-device selection for the required voltage, current, and thermal margin. A production design should still verify industrial qualification requirements, protection behavior, EMI behavior, and the thermal limits of the complete MOSFET output stage.
推荐
Multimedia Speaker Amplifier
IRS20965SPBF is suitable for a multimedia speaker amplifier when low switching loss and external power-device flexibility are priorities. The 16-SOIC controller can be positioned near the MOSFET bridge to keep gate-drive loops short, while the audio signal and output filter remain separate from the high-current switching paths. Correct speaker impedance, output power, distortion, thermal rise, and EMI filtering are essential system-level checks.
推荐
External Audio Amplifier Module
IRS20965SPBF can serve as the controller element in an external Class D amplifier module built around user-selected power MOSFETs. This arrangement separates the low-power control function from the high-current output stage and supports application-specific scaling. The module designer must follow the manufacturer pinout and protection requirements, select compatible MOSFETs, implement a qualified output filter, and verify thermal performance at the maximum expected audio load.
推荐
Consumer Audio Control and Amplification
The IRS20965SPBF is applicable to consumer audio products that need a mono Class D drive stage with externally selectable output transistors. Its surface-mount 16-SOIC package supports compact board construction, and the listed 10 V to 15 V supply range provides a defined design input. For consumer products, validate enclosure acoustics, speaker protection, EMI compliance, thermal margins, and long-term component sourcing before approving the design.
推荐
推荐产品汇总
工程参考数据： IRS20965SPBF ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | [DATA_NEEDED: verified same-brand drop-in MPN] | [DATA_NEEDED: verified same-brand drop-in MPN] | [DATA_NEEDED: verified cross-brand drop-in MPN] |
|---|---|---|---|---|
| Brand | Infineon Technologies | Infineon Technologies | Infineon Technologies | Texas Instruments |
关键差异点
- Dedicated mono Class D audio-driver positioning （对比 [DATA_NEEDED: verified cross-brand drop-in MPN])
- Compact 16-SOIC integration （对比 [DATA_NEEDED: verified same-brand drop-in MPN])
- Wide listed temperature range （对比 [DATA_NEEDED: verified cross-brand drop-in MPN])
设计说明
The verified supply range is 10 V to 15 V. Confirm the actual rail, startup sequence, local decoupling, and load-transient requirements against the manufacturer datasheet. Because IRS20965SPBF drives external MOSFETs, calculate the complete power-stage loss from MOSFET conduction, switching, gate-drive, and output-filter losses rather than from the controller IC alone.
Place the driver close to the external MOSFET gates and minimize loop area between each gate, source return, and supply-decoupling path. Keep high-current switching nodes away from audio input and feedback traces. Route the gate-drive and power-ground returns as short and wide as practical, and use the manufacturer layout recommendations for the 16-SOIC footprint.
The verified operating-temperature listing is -40 C to +125 C (TA), but that is not a guarantee that every external-MOSFET amplifier can dissipate its output power at the maximum ambient temperature. Estimate MOSFET conduction and switching dissipation at the expected load, include copper and thermal-path effects, and verify the assembly temperature before production release.
Do not treat IRS20965SPBF as a direct speaker-current output stage. Selecting MOSFETs only by voltage rating can produce excessive conduction loss, inadequate gate-drive margin, or unacceptable switching behavior. Also verify output-filter values, dead-time behavior, bootstrap or supply requirements, protection functions, and all pin connections from the manufacturer datasheet.
合规信息
The supplied distributor data does not explicitly provide RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. The product is not treated as automatically automotive-qualified merely because the listed temperature range is -40 C to +125 C.
