SI8244BB-D-IS1R

@@ -0,0 +1,64 @@+# SI8244BB-D-IS1R++**Skyworks Solutions** · Audio Interface ICs · SOIC-16++SI8244BB-D-IS1R from Skyworks Solutions, in a SOIC-16. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | PWM | input | PWM input. TTL-level compatible with >400 mV hysteresis; drives both isolated high-side and low-side gate driver outputs through the dead-time and overlap protection block. |+| 2 | NC | unconnected | No connection. Leave floating or tie to any convenient net. |+| 3 | VDDI | power_in | Input-side power supply terminal; connect to a 4.5 to 5.5 V source. Internally tied to pin 8 (both VDDI pins should be bypassed with a local ceramic capacitor to GNDI). |+| 4 | GNDI | power_in | Input-side ground terminal. Return for VDDI, PWM, DISABLE, and DT. |+| 5 | DISABLE | input | Device Disable input. When driven high, this input unconditionally forces outputs VOA and VOB LOW. Should be connected to an external logic level to avoid erroneous operation from capacitive noise coupling. |+| 6 | DT | input | Dead-time programming input. A resistor from DT to GNDI sets the dead time between VOA and VOB transitions (RDT up to 220 kΩ). Tying DT to VDDI or leaving it open selects the default 1 ns dead time. |+| 7 | NC | unconnected | No connection. Leave floating or tie to any convenient net. |+| 8 | VDDI | power_in | Input-side power supply terminal; connect to a 4.5 to 5.5 V source. Second VDDI pin (tied internally to pin 3); bypass locally to GNDI. |+| 9 | GNDB | power_in | Ground terminal for Driver B (low-side driver). Return for VDDB and VOB; isolated from the input-side GNDI. |+| 10 | VOB | output | Driver B output (low-side gate drive). Push-pull output referenced to VDDB/GNDB with 4.0 A peak drive capability (RON(SINK) ≈ 1.0 Ω, RON(SOURCE) ≈ 2.7 Ω on Si8244). |+| 11 | VDDB | power_in | Driver B power supply voltage terminal; connect to a 6.5 to 24 V source referenced to GNDB. Bypass locally with a ceramic + bulk capacitor. |+| 12 | NC | unconnected | No connection. Provides creepage/clearance spacing between the Driver B and Driver A domains. |+| 13 | NC | unconnected | No connection. Provides creepage/clearance spacing between the Driver B and Driver A domains. |+| 14 | GNDA | power_in | Ground terminal for Driver A (high-side driver). Return for VDDA and VOA; isolated from GNDI and GNDB. |+| 15 | VOA | output | Driver A output (high-side gate drive). Push-pull output referenced to VDDA/GNDA with 4.0 A peak drive capability (RON(SINK) ≈ 1.0 Ω, RON(SOURCE) ≈ 2.7 Ω on Si8244). |+| 16 | VDDA | power_in | Driver A power supply voltage terminal; connect to a 6.5 to 24 V source referenced to GNDA. Bypass locally with a ceramic + bulk capacitor. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Skyworks Solutions |+| Package | SOIC-16 |+| Category | Interface |+| Pins | 16 |++## Ordering variants++Same part, different packaging or reel option.++- `SI8244BB-D-IS1R`+- `Si8244BB-D-IS1R`+- `Si8244CB-D-IS1`+- `Si8244CB-D-IS1R`+- `Si8241BB-D-IS1`+- `Si8241BB-D-IS1R`+- `Si8241CB-D-IS1`+- `Si8241CB-D-IS1R`++## CAD (KiCad official)++- Symbol: `SI8244BB-D-IS1R`+- Footprint: `Package_SO:SOIC-16_3.9x9.9mm_P1.27mm`+- 3D model: SOIC-16 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Skyworks Solutions datasheet](docs/si8244bb-d-is1r-datasheet.pdf) (30 pp, sha256 `ecde04c70218ff33`, retrieved 2026-08-17, tier: lcsc)+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/si8244bb-d-is1r-datasheet.pdf)

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