component
ISO7831DWR
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.
Generated by kicad-footprint-generator · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 21d ago |
| viewers | 21d ago |
| iso7831dwr-etched.glb | 21d ago |
| iso7831dwr-etched.step | 21d ago |
| iso7831dwr-hero.glb | 21d ago |
| iso7831dwr-hero.overlay.json | 21d ago |
| iso7831dwr.glb | 21d ago |
| iso7831dwr.kicad_mod | 21d ago |
| iso7831dwr.kicad_sym | 21d ago |
| iso7831dwr.lbr | 21d ago |
| iso7831dwr.step | 21d ago |
| package.json | 21d ago |
| page.json | 21d ago |
| README.md | 21d ago |
ISO7831DWR
Texas Instruments · Digital Isolators · SOIC-16-300mil
ISO7831DWR 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 | Power supply for side 1 (input side), specified at 2.25 V to 5.5 V recommended operating range; place a 0.1 µF bypass capacitor close to the pin. |
| 2 | GND1 | power_in | Ground connection for VCC1 (side 1). |
| 3 | INA | input | Logic input for channel A; high-level input requires at least 0.7 × VCCI and low-level input is at most 0.3 × VCCI. |
| 4 | INB | input | Logic input for channel B; high-level input requires at least 0.7 × VCCI and low-level input is at most 0.3 × VCCI. |
| 5 | OUTC | output | Output for channel C; when the input is open or input power is lost, the ISO7831 output defaults to high. |
| 6 | NC | unconnected | Not connected. |
| 7 | EN1 | input | Output enable for side 1; high or open enables the side-1 outputs, and low forces them into high impedance. |
| 8 | GND1 | power_in | Ground connection for VCC1 (side 1). |
| 9 | GND2 | power_in | Ground connection for VCC2 (side 2). |
| 10 | EN2 | input | Output enable for side 2; high or open enables the side-2 outputs, and low forces them into high impedance. |
| 11 | NC | unconnected | Not connected. |
| 12 | INC | input | Logic input for channel C; high-level input requires at least 0.7 × VCCI and low-level input is at most 0.3 × VCCI. |
| 13 | OUTB | output | Output for channel B; when the input is open or input power is lost, the ISO7831 output defaults to high. |
| 14 | OUTA | output | Output for channel A; when the input is open or input power is lost, the ISO7831 output defaults to high. |
| 15 | GND2 | power_in | Ground connection for VCC2 (side 2). |
| 16 | VCC2 | power_in | Power supply for side 2 (output side), specified at 2.25 V to 5.5 V recommended operating range; place a 0.1 µF bypass capacitor close to the pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-16-300mil |
| Category | Signal Isolation Devices |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
ISO7831DWR - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOIC-16-300mil (KiCad packages3D, STEP)
- 3D model files:
iso7831dwr-etched.step/iso7831dwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);iso7831dwr.step/iso7831dwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (38 pp, sha256
938fbc0ad53e0111, retrieved 2026-10-10, 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-5-5(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).