component
ISOW7842FDWER
Public Made by Adomby adom
Texas Instruments Digital Isolators (With Power), 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
markdownISOW7842FDWER
Texas Instruments · Digital Isolators (With Power) · SOIC-16-300mil
ISOW7842FDWER 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 | VCC | power_in | Primary-side supply voltage, recommended 3 V to 5.5 V and referenced to GND1; absolute maximum is -0.5 V to 6 V, with UVLO thresholds of 2.7 V (rising) and 2.1 V (falling). |
| 2 | GND1 | power_in | Ground connection for VCC (primary side). |
| 3 | INA | input | Input channel A, referenced to VSI, with high threshold of at least 0.7 × VSI and low threshold of at most 0.3 × VSI. |
| 4 | INB | input | Input channel B, referenced to VSI, with high threshold of at least 0.7 × VSI and low threshold of at most 0.3 × VSI. |
| 5 | OUTC | output | Output channel C; sources up to -4 mA (VSO = 5 V) or -2 mA (VSO = 3.3 V) and sinks up to 4 mA or 2 mA respectively, defaulting high (low on F-suffix devices) when its input is open. |
| 6 | OUTD | output | Output channel D; sources up to -4 mA (VSO = 5 V) or -2 mA (VSO = 3.3 V) and sinks up to 4 mA or 2 mA respectively, defaulting high (low on F-suffix devices) when its input is open. |
| 7 | NC | unconnected | Not connected internally. |
| 8 | GND1 | power_in | Ground connection for VCC (primary side). |
| 9 | GND2 | power_in | Ground connection for VISO (secondary side). |
| 10 | SEL | input | Isolated supply select: tie to VISO for a 5 V output, or tie to GND2 or leave floating for a 3.3 V output; the pin has an internal weak pull-down. |
| 11 | IND | input | Input channel D, referenced to VSI, with high threshold of at least 0.7 × VSI and low threshold of at most 0.3 × VSI. |
| 12 | INC | input | Input channel C, referenced to VSI, with high threshold of at least 0.7 × VSI and low threshold of at most 0.3 × VSI. |
| 13 | OUTB | output | Output channel B; sources up to -4 mA (VSO = 5 V) or -2 mA (VSO = 3.3 V) and sinks up to 4 mA or 2 mA respectively, defaulting high (low on F-suffix devices) when its input is open. |
| 14 | OUTA | output | Output channel A; sources up to -4 mA (VSO = 5 V) or -2 mA (VSO = 3.3 V) and sinks up to 4 mA or 2 mA respectively, defaulting high (low on F-suffix devices) when its input is open. |
| 15 | GND2 | power_in | Ground connection for VISO (secondary side). |
| 16 | VISO | power_out | Isolated supply output, set to 5 V or 3.3 V by the SEL pin and referenced to GND2. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-16-300mil |
| Category | Signal Isolation Devices |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
ISOW7842FDWER - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOIC-16-300mil (KiCad packages3D, STEP)
- 3D model files:
isow7842fdwer-etched.step/isow7842fdwer-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);isow7842fdwer.step/isow7842fdwer.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (58 pp, sha256
d52d56a624a0bade, retrieved 2026-10-08, 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).