component
ISO7731FQDWRQ1
Public Made by Adomby adom
Texas Instruments Digital Isolators, SOIC-16-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownISO7731FQDWRQ1
Texas Instruments · Digital Isolators · SOIC-16-300mil
ISO7731FQDWRQ1 from Texas Instruments, in a SOIC-16-300mil. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VCC1 | power_in | Input side power supply, recommended operating range 2.25V to 5.5V. |
| 2 | GND1 | power_in | Ground reference for input side power supply VCC1. |
| 3 | INA | input | Digital input for channel A, voltage -0.5V to VCC1+0.5V absolute maximum. |
| 4 | INB | input | Digital input for channel B, voltage -0.5V to VCC1+0.5V absolute maximum. |
| 5 | OUTC | tri_state | Tri-state output for channel C, output current ±15mA, high-impedance when EN1 is low. |
| 6 | NC | unconnected | Not connected. |
| 7 | EN1 | input | Output enable for channel C, high enables output, low sets to high-impedance state. |
| 8 | GND1 | power_in | Ground reference for input side power supply VCC1. |
| 9 | GND2 | power_in | Ground reference for output side power supply VCC2. |
| 10 | EN2 | input | Output enable for channels A and B, high enables outputs, low sets to high-impedance state. |
| 11 | NC | unconnected | Not connected. |
| 12 | INC | input | Digital input for channel C, voltage -0.5V to VCC2+0.5V absolute maximum. |
| 13 | OUTB | tri_state | Tri-state output for channel B, output current ±15mA, high-impedance when EN2 is low. |
| 14 | OUTA | tri_state | Tri-state output for channel A, output current ±15mA, high-impedance when EN2 is low. |
| 15 | GND2 | power_in | Ground reference for output side power supply VCC2. |
| 16 | VCC2 | power_in | Output side power supply, recommended operating range 2.25V to 5.5V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-16-300mil |
| Category | Signal Isolation Devices |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
ISO7731FQDWRQ1 - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOIC-16-300mil (KiCad packages3D, STEP)
- 3D model files:
iso7731fqdwrq1-etched.step/iso7731fqdwrq1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);iso7731fqdwrq1.step/iso7731fqdwrq1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (56 pp, sha256
de10b8c94b20f811, retrieved 2026-10-01, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).