IRS20965STRPBF - 500W Mono Class D Driver | Infineon
N.º da peça: IRS20965STRPBF ✓ AtivoIRS20965STRPBF Visão geral
A Class D audio driver is a gate-drive controller used between a PWM command signal and the power MOSFETs of an audio output stage. The IRS20965STRPBF belongs to the MOSFET-driver hierarchy, where a MOSFET driver controls power transistors rather than directly delivering audio output to a speaker. By supporting independently floating high-side and low-side PWM inputs, the driver can operate the two output transistors from a single low-voltage control domain while the power stage switches a substantially higher bus voltage.
The verified manufacturer features include bidirectional over-current protection, self-reset behavior, a dedicated over-current sensing output, and shoot-through prevention. These functions are particularly relevant to speaker systems in which abnormal DC, load mismatch, or transistor faults can increase power-device stress. Bidirectional current sensing also allows detection conditions to be evaluated in both switching directions, while the self-reset function can return the protection circuit toward its normal operating state after the monitored fault condition is removed.
The device is a 16-pin SOIC and supports high-side and low-side floating PWM inputs. This integration allows a compact Class D amplifier controller to be placed near the output MOSFETs while separating the high-voltage switching environment from the low-voltage command circuitry. Independent floating inputs can also support timing adjustments, but board-level propagation delays and mismatched gate-drive paths should be reviewed before a design is released for production.
Typical uses include mono Class D speaker amplifiers, high-power consumer-audio systems, professional audio output stages, and industrial audio systems operating from a high-voltage bus. The 10 V to 15 V supply range and 500 W capability make the part most relevant where a compact controller is preferred over discrete high-voltage gate-drive circuitry. Infineon presents it as an audio-amplifier driver rather than a complete power amplifier, so external output MOSFETs, passive protection networks, gate resistors, and a suitable output filter remain required.
For robust implementation, use low-inductance gate-drive layouts, keep the high-voltage switching loop compact, and place current-sense and protection components where their sensing relationships are clear. The verified sources do not provide the complete pin mapping, timing limits, thermal ratings, or detailed application-circuit values, so those items must be confirmed in the manufacturer datasheet before layout release. This page distinguishes documented facts from parameters that still require datasheet verification while adding practical selection and implementation guidance.
Alternativas drop-in para IRS20965STRPBF — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com IRS20965STRPBF (mesmo formato e footprint) — diferindo em Application Category, Package, Product Type.
IRS20965SPBF
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Ver ficha técnica →IRS20965STRPBF Classificações máximas e características elétricas
| Product Type | High-voltage, high-speed MOSFET driver |
| Application Category | Class D audio amplifier |
| Channel Configuration | 1 channel (mono) |
| Amplifier Topology | Class D |
| Maximum Output Power | 500 W |
| Supply Voltage Range | 10 V to 15 V |
| High-Side PWM Input | Independent floating input |
| Low-Side PWM Input | Independent floating input |
| Over-Current Detection | Programmable and bidirectional |
| Over-Current Reset | Self-reset |
| Over-Current Sensing Output | Provided |
| Shoot-Through Prevention | Provided |
| Encapsulamento | 16-SOIC |
| Tipo de montagem | Surface mount |
Guia de Configuração de Pinos do IRS20965STRPBF 16-soic
Configuração de pinos para IRS20965STRPBF (pacote 16-soic). Este componente analógico possui pinos de entrada, saída e alimentação. Consulte o datasheet do fabricante para configurações de offset null, compensação e pino de enable. Ideal para circuitos de condicionamento de sinal e amplificadores.
Nenhum dado detalhado de pinagem disponível para IRS20965STRPBF.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
IRS20965STRPBF é adequado para 6 aplicaçãos: High-Power Mono Speaker Amplifier, Professional Audio Power Stage, Consumer Audio Amplifier, Industrial Audio Amplifier, High-Voltage Class D Power Stage, External-MOSFET Audio Output Module.
High-Power Mono Speaker Amplifier
The IRS20965STRPBF fits a mono Class D speaker amplifier because it controls external power MOSFETs from independent high-side and low-side floating PWM inputs while supporting output power up to 500 W. The verified 10 V to 15 V control-supply range suits systems that derive a regulated low-voltage rail alongside a higher output bus. Its programmable bidirectional over-current detection, self-reset behavior, and shoot-through prevention reduce the amount of separate protection circuitry required. The designer must still select suitable MOSFETs, gate resistors, an output filter, current-sense components, and a thermal strategy, then verify the complete power stage against the manufacturer datasheet.
Recomendado
Professional Audio Power Stage
A professional audio output stage can use the IRS20965STRPBF as the control and protection IC for a high-power mono Class D amplifier. Its support for independent floating PWM paths accommodates the high-side and low-side source-referenced gate-drive arrangements commonly required in a bridged power stage. The integrated over-current sensing output and bidirectional detection provide a useful status signal to supervisory control, while self-reset can simplify recovery after a temporary overload. Actual usable power depends on the external MOSFETs, bus voltage, output-filter design, thermal limits, and verified protection settings; the advertised 500 W capability should not be treated as a guarantee for every transformer or speaker load.
Recomendado
Consumer Audio Amplifier
The IRS20965STRPBF is applicable to compact mono Class D consumer-audio designs that require a high-voltage switching driver rather than an integrated low-voltage output amplifier. Independent high-side and low-side floating PWM inputs permit direct control of external output transistors, and the integrated shoot-through prevention logic addresses a common power-stage failure mode. Programmable bidirectional over-current detection adds protection that would otherwise require additional circuitry. The 16-SOIC package supports conventional surface-mount assembly, but enclosure dissipation, transformer loading, ground-current behavior, and acoustic performance must be evaluated in the complete amplifier rather than from the controller specifications alone.
Recomendado
Industrial Audio Amplifier
The IRS20965STRPBF can serve as the MOSFET driver in an industrial mono audio system operating from a high-voltage bus, particularly where robust fault detection is more important than minimum bill-of-material cost. The controller combines independent floating PWM drive, programmable bidirectional over-current detection, self-reset, and shoot-through prevention in one 16-SOIC device. These functions support reliable operation under varying loudspeaker loads and abnormal conditions. Before industrial deployment, engineers should verify the device against the required temperature range, isolation strategy, EMC conditions, fault-response timing, and applicable sector-specific requirements; those details are not present in the supplied verified snippets.
Recomendado
High-Voltage Class D Power Stage
The IRS20965STRPBF is suited to a high-voltage Class D power stage because the verified data supports output operation up to 500 W and uses floating PWM inputs for the two switching sides. Placing the controller near the external MOSFETs can shorten gate-drive loops, although layout must still minimize high-dv/dt commutation loops and control return impedances. The shoot-through prevention logic should be supplemented by careful component timing, adequate dead time, properly rated gate resistors, and local decoupling. Because the supplied sources do not reveal peak gate current or propagation delay, those values must be obtained from the datasheet before sizing external drive circuitry.
Recomendado
External-MOSFET Audio Output Module
The IRS20965STRPBF can be implemented as the intelligent drive section of an external-MOSFET audio output module. Its independent high-side and low-side floating inputs allow the gate-drive network to follow the two switching nodes, while integrated bidirectional current detection can identify abnormal output conditions. The 10 V to 15 V control supply should be generated with local decoupling and kept separate from noisy high-current paths. A successful module design also needs properly rated power MOSFETs, a continuous-conduction output filter, current-sense resistors or shunt elements, thermal monitoring, and a defined behavior for the exposed over-current sensing output.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para IRS20965STRPBF — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | IRS20965S |
|---|---|---|
| Package | 16-SOIC | 16-SOIC - package family indicated, ordering details require confirmation |
| Brand | Infineon Technologies | Infineon Technologies |
| Product Type | High-voltage, high-speed MOSFET driver | Same-family Class D MOSFET driver |
| Channel Configuration | 1 channel (mono) | Mono Class D family variant |
Principais diferenciais
- Integrated high-power-stage protection (vs Discrete gate-driver implementation)
- Verified high-power Class D capability (vs IRS20965S)
- Independent floating gate-drive inputs (vs Single-ended MOSFET driver)
Notas de projeto
Place the controller, gate resistors, current-sense elements, and associated decoupling close to the external MOSFETs and minimize the area of the high-dv/dt switching loop. Keep the 10 V to 15 V control-supply trace away from power-node copper, and provide a quiet return path for the PWM and sensing signals. Exact pin assignments, recommended capacitor values, and layout examples must be taken from the manufacturer datasheet because they are not present in the verified snippets.
Do not interpret the 500 W rating as the electrical dissipation capability of the 16-SOIC controller. The IC drives external MOSFETs, so efficiency, bus voltage, gate charge, switching frequency, and output-filter losses determine practical power. Validate the complete stage at the intended load, including short-duration and continuous-operation cases. Confirm gate-drive current, propagation delay, and dead-time requirements from the datasheet before selecting or sizing the external transistors.
A common error is assuming that any Class D controller with a similar output-power rating is a drop-in replacement. Verify the package, pin-by-pin function, floating-input logic, current-sense threshold method, fault-output polarity, timing, and absolute-maximum ratings before substitution. The available cross-reference evidence confirms only one same-family candidate and does not establish a cross-brand drop-in part, so unverified equivalents should not be approved for production hardware.
Informações de conformidade
The supplied verified sources do not explicitly state RoHS, REACH, lead-free, halogen-free, or conflict-minerals status. AEC-Q100 is not applicable because the verified product is an industrial/commercial audio driver rather than an identified automotive-qualified variant.
