component
ISO7731FQDBQRQ1
Public Made by Adomby adom
Texas Instruments Digital Isolators, SSOP-16-150mil. 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
markdownISO7731FQDBQRQ1
Texas Instruments · Digital Isolators · SSOP-16-150mil
ISO7731FQDBQRQ1 from Texas Instruments, in a SSOP-16-150mil. 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 | Power supply for input side with recommended voltage range of 2.25V to 5.5V. |
| 2 | GND1 | power_in | Ground connection for VCC1 input-side supply. |
| 3 | INA | input | Input channel A on input side; accepts single-ended CMOS/TTL digital signals. |
| 4 | INB | input | Input channel B on input side; accepts single-ended CMOS/TTL digital signals. |
| 5 | OUTC | output | Output channel C on output side; provides isolated CMOS logic output. |
| 6 | NC | unconnected | Not connected; may be grounded per application requirements. |
| 7 | EN1 | input | Output enable 1 for side 1; outputs enabled when EN1 is high or open, placed in high-impedance state when low. |
| 8 | GND1 | power_in | Ground connection for VCC1 input-side supply. |
| 9 | GND2 | power_in | Ground connection for VCC2 output-side supply. |
| 10 | EN2 | input | Output enable 2 for side 2; outputs enabled when EN2 is high or open, placed in high-impedance state when low. |
| 11 | NC | unconnected | Not connected; may be grounded per application requirements. |
| 12 | INC | input | Input channel C on input side; accepts single-ended CMOS/TTL digital signals. |
| 13 | OUTB | output | Output channel B on output side; provides isolated CMOS logic output. |
| 14 | OUTA | output | Output channel A on output side; provides isolated CMOS logic output. |
| 15 | GND2 | power_in | Ground connection for VCC2 output-side supply. |
| 16 | VCC2 | power_in | Power supply for output side with recommended voltage range of 2.25V to 5.5V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SSOP-16-150mil |
| Category | Signal Isolation Devices |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
ISO7731FQDBQRQ1 - Footprint:
Package_SO:SSOP-16_5.3x6.2mm_P0.65mm - 3D model: SSOP-16-150mil (KiCad packages3D, STEP)
- 3D model files:
iso7731fqdbqrq1-etched.step/iso7731fqdbqrq1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);iso7731fqdbqrq1.step/iso7731fqdbqrq1.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 2026-09-24, 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 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-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).