SI8244BB-D-IS1R - 2-Channel Isolated Class D Driver | Skyworks
Référence : SI8244BB-D-IS1R ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $2.9909 | $2,99 |
| 10 | $0 | $0,00 |
| 100 | $0 | $0,00 |
| 500 | $0 | $0,00 |
| 1 000 | $0 | $0,00 |
SI8244BB-D-IS1R Présentation
What is an isolated Class D audio gate driver? An isolated gate driver is a power-management and signal-conditioning device that transfers control signals across an isolation barrier. In a Class D audio power stage, it drives switching devices such as MOSFETs in a full-bridge or half-bridge topology. Its dead-time function controls how long both switches remain off during transition, helping prevent shoot-through while allowing the power amplifier to switch efficiently. The Si824x family combines two isolated drivers in one package and supports audio signal isolation and level translation.
The SI8244BB-D-IS1R is identified in the verified data as a 16-SOIC, two-channel audio line driver. Skyworks states that the SI8244BB-IS1 family supports precise dead-time adjustment, balancing low total harmonic distortion against system efficiency. The -IS1R suffix is treated as the exact ordering code supplied by the distributor data; no unverified package, grade, or temperature details are added.
Typical uses include isolated Class D speaker amplifiers, high-power audio power stages, isolated preamplifier interfaces, and audio systems requiring high-side and low-side switch control. The 16-SOIC package is suitable for conventional surface-mount PCB assembly. Exact gate-drive voltage, propagation delay, dead-time range, isolation rating, channel polarity, and output-current limits must be confirmed in the manufacturer datasheet before final design release.
A key design consideration is that isolation and switching requirements dominate PCB layout. Keep the isolation barrier geometry compliant with the manufacturer’s creepage and clearance guidance, isolate high-voltage switching nodes from logic and audio grounds, and place gate-loop components to minimize parasitic inductance. Do not infer that an equivalent-looking audio driver is electrically interchangeable without checking pin names, dead-time behavior, voltage ratings, and isolation architecture.
This page combines verified distributor listings, the official Skyworks family page, the manufacturer datasheet link, application guidance, and clearly marked data gaps for unreported parameters. It is designed to support early component selection while avoiding fabricated specifications.
Alternatives de remplacement direct pour SI8244BB-D-IS1R — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec SI8244BB-D-IS1R (même facteur de forme et même empreinte) — différant par Product Type, Mounting Type, Package, Output-to-Output Isolation.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
SI8244BB-D-IS1
✅ Remplacement direct✓ En stock
Contactez-nous pour le prix
Voir la fiche technique →SI8244BB-D-IS1R
✅ Remplacement direct✓ En stock
Contactez-nous pour le prix
Voir la fiche technique →SI8441AA-D-IS1R
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
SI8244BB-C-IS1
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
Contactez-nous pour le prix
Voir la fiche technique →SI8244BB-D-IS1R
✅ Remplacement direct✓ En stock
Contactez-nous pour le prix
Voir la fiche technique →SI8244BB-D-IS1R Valeurs maximales et caractéristiques électriques
| Product Type | 2-channel isolated Class D audio gate driver |
| Channel Count | 2 channels |
| Boîtier | 16-SOIC |
| Type de montage | Surface mount |
| Isolation Architecture | Input-to-output and output-to-output isolation |
| Dead-Time Function | Precision dead-time generator |
| Target Applications | Class D audio amplification |
| High-Power Audio Targeting | High-power audio applications above 30 W |
| Signal Level Translation | Enabled without additional external level-translation circuits |
Guide de configuration des broches du SI8244BB-D-IS1R 16-soic
Configuration des broches du SI8244BB-D-IS1R (boîtier 16-soic). Ce composant de puissance comporte des bornes de grille, de drain et de source. Pour les boîtiers non polarisés, consultez la fiche technique du fabricant pour l'orientation exacte de la broche 1 et les détails de l'empreinte. Les applications courantes incluent la conception d'alimentations, la commande de moteurs et la commutation de charges.
Aucune donnée de brochage détaillée disponible pour SI8244BB-D-IS1R.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
SI8244BB-D-IS1R convient pour 6 applications: Isolated Class D Speaker Amplifier, Isolated Audio Preamp Interface, High-Power Audio Bridge Output, Isolated Class D Audio Module, Audio Power-Supply Control, Audio Amplifier Fault Monitoring.
Isolated Class D Speaker Amplifier
SI8244BB-D-IS1R fits an isolated Class D speaker-amplifier output stage because it provides two isolated gate-drive channels and a precision dead-time generator. The driver can control high-side and low-side switches in a bridge topology, while its isolation helps separate the audio-control side from the switching side. The verified manufacturer family data targets high-power audio applications above 30 W, but the final gate-drive voltage, current, timing, and thermal limits must come from the device datasheet.
Recommandé
Isolated Audio Preamp Interface
The SI8244BB-D-IS1R can be used as the isolated driver interface between an audio-control domain and a power-conversion domain in a preamplifier or active speaker design. Its two-channel structure supports paired switch control, and the family’s input-to-output and output-to-output isolation provides signal separation without additional level-translation circuitry. Exact logic thresholds, propagation delays, and supply requirements are not present in the verified snippets and must be checked before schematic release.
Recommandé
High-Power Audio Bridge Output
For a high-power bridge amplifier, SI8244BB-D-IS1R can drive the complementary switching devices used to develop a bipolar audio output from a single supply. The precision dead-time function helps manage the transition interval and is directly relevant to the manufacturer’s stated goal of balancing low total harmonic distortion with efficiency. MOSFET selection, gate resistors, dead-time setting, switching frequency, and thermal performance remain device- and board-level design decisions.
Recommandé
Isolated Class D Audio Module
SI8244BB-D-IS1R is suitable for a modular Class D audio stage where the control electronics and power stage require isolation. The two isolated driver channels support a compact gate-control implementation, while the 16-SOIC package allows conventional surface-mount assembly. Isolation-barrier routing and high-voltage clearance must follow the manufacturer’s PCB requirements; the verified data does not specify the isolation rating, creepage, clearance, or working voltage.
Recommandé
Audio Power-Supply Control
The isolated-driver architecture can be used in audio systems that need control-signal transfer across a galvanic boundary, including auxiliary power-control and protection signaling around an audio amplifier. SI8244BB-D-IS1R is not presented as a power converter; it drives switching devices and requires external power-stage components. Confirm whether its isolated channels are appropriate for the required signal direction and topology by checking the manufacturer pinout and application information.
Recommandé
Audio Amplifier Fault Monitoring
A designer can use SI8244BB-D-IS1R in an audio power stage where controlled isolation improves the separation between logic commands and high-energy switching nodes. The two-channel implementation can simplify coordinated two-switch drive, while dead-time control helps maintain orderly switching transitions. It does not replace overcurrent, overtemperature, or speaker protection; those functions require separate sensing and shutdown circuitry, and all protection thresholds must be derived from the verified system requirements.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour SI8244BB-D-IS1R — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | SI8244BB-D-IS1 | SI8441AA-D-IS1R | SI8244BB-C-IS1 |
|---|---|---|---|---|
| Package | 16-SOIC | 16-SOIC | 16-SOIC | 16-SOIC |
| Brand | Skyworks Solutions Inc. | Skyworks Solutions Inc. | Skyworks Solutions Inc. | Skyworks Solutions Inc. |
Principaux différenciateurs
- Two isolated driver channels in one 16-SOIC package (vs SI8441AA-D-IS1R)
- Precision dead-time generation (vs SI8244BB-D-IS1)
- Family support for high-power Class D audio (vs SI8244BB-C-IS1)
Notes de conception
Treat the isolation barrier as a layout constraint, not merely a package feature. Keep high-side switch-node copper, gate-drive traces, and low-voltage logic separated according to the manufacturer’s isolation guidance. The verified data does not provide creepage, clearance, or working-voltage values, so obtain those ratings from the official Si824x datasheet before defining copper keepouts and board slots.
The SI8244BB-D-IS1R is a gate driver, not the audio output-power device. Select external MOSFETs using the required gate voltage, gate charge, switching loss, avalanche capability, and thermal resistance, then verify that the driver can charge and discharge their gates within the switching time budget. Do not use the LCSC starting price or the family description as a substitute for electrical ratings.
Dead-time is a central parameter in a Class D bridge. A timing value that is too short can cause shoot-through, while excessive dead time can increase conduction loss and distortion. The precision dead-time generator is identified at family level, but the exact adjustment range and propagation delay are not in the supplied snippets. Use the datasheet timing curves and application circuit during schematic and PCB review.
Informations de conformité
Compliance information is not present in the supplied verified web data. Do not infer RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-mineral status.
