IRS20124CD - 200V Digital Audio Driver | Infineon
MPN: IRS20124CD ✓ Active| Qty | Unit Price | Extended |
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| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
IRS20124CD Overview
A digital audio driver is a gate-drive IC used between a Class D controller and the power switching transistors in an audio amplifier. It translates control signals into high-voltage gate drive, manages timing between complementary switching devices, and can provide protection functions. This places the IRS20124CD in the broader power-management and audio-amplifier hierarchy: Class D amplifier controller, digital audio driver, discrete power stage, loudspeaker output.
The verified family information highlights programmable dead-time through the DT/SD pin, allowing external resistor-based timing adjustment with only two external resistors. Proper dead-time prevents simultaneous conduction in the complementary output devices, while bidirectional over-current sensing helps the amplifier react to abnormal output-stage conditions. These features are central to designing a robust discrete switching stage rather than relying on uncontrolled gate timing.
The IRS20124CD is associated with up to 1000 W output-power capability in Class D audio applications according to the supplied IRS20124S family source snippet. The exact electrical ratings, thermal limits, package dimensions, and pin assignments for the CD suffix were not present in the verified data, so those values must be confirmed against the Infineon manufacturer datasheet before layout or production use. The family is particularly relevant to powered speakers, subwoofers, PA systems, and automotive or industrial audio equipment where a discrete MOSFET output stage is preferred.
Designers should treat the IRS20124CD as a high-voltage gate driver, not as a complete audio amplifier. External switching transistors, DC-link voltage, current sensing, dead-time components, gate resistors, heat sinking, and output filtering must be designed together. The family’s programmable dead-time and bidirectional current sensing reduce control complexity, but exact component values and protection thresholds require the manufacturer datasheet.
This page distinguishes verified family-level information from CD-suffix-specific data that is unavailable in the supplied results. It also emphasizes practical selection criteria, including package confirmation, voltage rating, gate-drive compatibility, current limits, thermal performance, and amplifier topology before treating any substitute as a true drop-in replacement.
Drop-in alternatives for IRS20124CD — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
No drop-in alternatives available for this product.
Request AlternativesIRS20124CD Maximum Ratings & Electrical Characteristics
| Product Type | Digital audio driver IC |
| High Voltage Rating | 200 V |
| Application Class | Class D audio amplifier |
| Maximum Output Power | Up to 1000 W |
| Dead-Time Generation | Internal programmable dead-time generation |
| Dead-Time Control | DT/SD pin voltage with external resistors |
| Over-Current Sensing | Bidirectional over-current sensing |
| Output Stage | Discrete power-transistor output stage |
| Driver Family | IRS20124S family |
| Protection Function | Over-current sensing and protection |
| Control Interface | Digital audio driver control signals |
| Switching Topology | Class D power amplifier |
| Loudspeaker Drive Method | External discrete power transistor drive |
| RoHS Status | unknown |
| REACH Status | unknown |
| AEC-Q100 Qualification | unknown |
IRS20124CD standard Pin Configuration Guide
Pin configuration for IRS20124CD (standard package). This analog component features input, output, and power supply pins. Refer to the manufacturer datasheet for offset null, compensation, and enable pin configurations. Ideal for signal conditioning and amplifier circuits.
No detailed pinout data available for IRS20124CD.
Refer to the datasheet for full pin configuration.
Typical Applications
IRS20124CD is suitable for 6 applications: Class D Subwoofer Amplifier, Powered Speaker, PA Speaker Amplifier, Automotive Audio Amplifier, Digital Audio Power Stage, Industrial Audio Amplifier.
Class D Subwoofer Amplifier
The IRS20124CD fits a high-power Class D subwoofer amplifier because the verified IRS20124S family information identifies a 200 V high-voltage rating, programmable dead-time, and bidirectional over-current sensing. It drives external switching transistors rather than the loudspeaker directly, allowing the amplifier designer to select a discrete power stage for the required output power. Proper dead-time is essential because it prevents overlap between the two switching devices, while current sensing helps protect the output stage during abnormal conditions.
Recommended
Powered Speaker
A powered speaker can use the IRS20124CD when the design separates audio control from high-current switching. The driver’s verified 200 V high-voltage family rating supports high-voltage Class D output architectures, while internal programmable dead-time reduces the number of external timing components. The exact package and pinout of the CD suffix must be confirmed before layout, and the external MOSFETs, output filter, heat sink, and fault response must be designed as one system.
Recommended
PA Speaker Amplifier
The IRS20124CD is relevant to professional PA speaker amplifiers requiring a discrete power stage and Class D conversion. The verified family information cites output capability up to 1000 W, but actual continuous power depends on the external switches, bus voltage, heat sinking, output filter, and amplifier topology. Bidirectional over-current sensing can support fault detection, while programmable dead-time helps control switching transitions and reduce shoot-through risk.
Recommended
Automotive Audio Amplifier
The IRS20124CD may be considered for high-voltage automotive audio designs only after confirming its CD-suffix package, ratings, qualification status, and operating-temperature limits. The verified family data confirms a 200 V high-voltage rating and discrete Class D output architecture, but it does not establish AEC-Q100 qualification. Automotive use therefore requires formal review of transient protection, load dump behavior, thermal performance, supply transients, and automotive qualification evidence.
Recommended
Digital Audio Power Stage
The IRS20124CD can serve as the driver stage in a digital audio power amplifier where a controller produces modulation signals and external transistors deliver current. Its verified internal dead-time block and DT/SD control provide a mechanism for setting switching intervals between external devices. The design must still account for gate-drive amplitude, propagation delay, transistor tolerances, output filtering, and thermal performance; these values are not fully specified in the supplied data.
Recommended
Industrial Audio Amplifier
Industrial audio systems can use the IRS20124CD when a compact, efficient Class D power stage is required. The 200 V family rating and programmable dead-time are useful for externally switched output architectures, while over-current sensing provides a basis for protection design. Industrial qualification, enclosure temperature, conductive-noise immunity, and long-term supply status must be verified separately because the supplied sources do not establish those requirements.
Recommended
Recommended Products Summary
Engineering reference data for IRS20124CD — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product |
|---|---|
| Product Type | Digital audio driver IC |
| Brand | Infineon Technologies |
| High Voltage Rating | 200 V |
| Maximum Output Power | Up to 1000 W |
| Dead-Time Generation | Internal programmable dead-time generation |
| Over-Current Sensing | Bidirectional |
| Output Stage | Discrete power-transistor output stage |
Key Differentiators
- Programmable switching timing (vs Generic fixed-dead-time Class D gate driver)
- Bidirectional current monitoring (vs Class D driver without bidirectional over-current sensing)
- High-voltage discrete output-stage support (vs Low-voltage integrated audio output IC)
Design Notes
Design the IRS20124CD around the external power stage rather than treating it as a complete amplifier. Confirm the allowable DC-link voltage, gate-drive levels, output-current capability, and package thermal limits against the exact Infineon datasheet. The verified family information states 200 V high-voltage capability and up to 1000 W application capability, but those family-level claims do not replace CD-suffix absolute-maximum ratings.
Place the driver, external power transistors, gate resistors, dead-time-setting components, and current-sense elements with short, controlled high-current paths. Keep the DT/SD and sensing connections away from noisy power-switching nodes where possible. Gate-loop inductance and common-source impedance can create false over-current trips or unstable switching, so compare the final layout against the manufacturer reference design.
Thermal design must include the driver IC, external switching transistors, DC-link components, and output magnetics. Estimated: power loss in each external transistor is approximately Ids_rms squared multiplied by Rds_on, but the actual transistor selection is not provided here. Verify junction temperature across the worst-case load, bus voltage, enclosure temperature, and amplifier duty cycle before production release.
Do not infer dead-time values, fault thresholds, pin names, or package details from family snippets alone. The supplied sources confirm programmable dead-time and bidirectional over-current sensing, but they do not provide the CD-suffix timing range, pinout, absolute maximum ratings, or fault response. Obtain the exact Infineon datasheet and validate the complete Class D amplifier simulation before layout.
Compliance Information
The supplied sources do not provide RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations for IRS20124CD.
