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ISOW7842FDWER

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Texas Instruments Digital Isolators (With Power), SOIC-16-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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ISOW7842FDWER

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.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); isow7842fdwer.step / isow7842fdwer.glb are 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, primary claude-haiku-5-5 (text), consensus claude-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).

Datasheet PDF