component
ISO7731DBQR
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
markdownISO7731DBQR
Texas Instruments · Digital Isolators · SSOP-16-150mil
ISO7731DBQR 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 | Supply voltage for isolated input-side circuits, operating range 2.25 V to 5.5 V |
| 2 | GND1 | power_in | Ground return for input-side supply |
| 3 | INA | input | Channel A digital input, accepts logic levels from 0 V to VCCI |
| 4 | INB | input | Channel B digital input, accepts logic levels from 0 V to VCCI |
| 5 | OUTC | tri_state | Channel C digital output with tri-state capability, high-impedance when EN2 is low, output range 0 V to VCCO |
| 6 | NC | unconnected | No internal connection |
| 7 | EN1 | input | Output enable input for channels A and B, high or open-circuit enables normal operation, low forces high-impedance |
| 8 | GND1 | power_in | Ground return for input-side supply |
| 9 | GND2 | power_in | Ground return for output-side supply |
| 10 | EN2 | input | Output enable input for channel C, high or open-circuit enables normal operation, low forces high-impedance |
| 11 | NC | unconnected | No internal connection |
| 12 | INC | input | Channel C digital input, accepts logic levels from 0 V to VCCI |
| 13 | OUTB | tri_state | Channel B digital output with tri-state capability, high-impedance when EN1 is low, output range 0 V to VCCO |
| 14 | OUTA | tri_state | Channel A digital output with tri-state capability, high-impedance when EN1 is low, output range 0 V to VCCO |
| 15 | GND2 | power_in | Ground return for output-side supply |
| 16 | VCC2 | power_in | Supply voltage for isolated output-side circuits, operating range 2.25 V to 5.5 V |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SSOP-16-150mil |
| Category | Signal Isolation Devices |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
ISO7731DBQR - Footprint:
Package_SO:SSOP-16_5.3x6.2mm_P0.65mm - 3D model: SSOP-16-150mil (KiCad packages3D, STEP)
- 3D model files:
iso7731dbqr-etched.step/iso7731dbqr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);iso7731dbqr.step/iso7731dbqr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (49 pp, sha256
6d47a7b1277198b2, 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-4-6(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).