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Contents

Pinout
Key specifications
Ordering variants
CAD (KiCad official)
Provenance

README

markdown

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 (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