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ISOW7843DWER

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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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ISOW7843DWER

Texas Instruments · Digital Isolators (With Power) · SOIC-16-300mil

ISOW7843DWER 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 Input-side (primary) supply voltage, referenced to GND1, with a recommended operating range of 3 V to 5.5 V.
2 GND1 power_in Ground connection for VCC on the input side.
3 INA input Input channel A; the input high threshold is 0.7 × VSI minimum and the input low threshold is 0.3 × VSI maximum, and the output takes its default state (high for non-F devices) when the input is open.
4 OUTB output Output channel B; recommended output current is limited to 4 mA low-level or 4 mA high-level at VSO = 5 V (2 mA at VSO = 3.3 V).
5 OUTC output Output channel C; recommended output current is limited to 4 mA low-level or 4 mA high-level at VSO = 5 V (2 mA at VSO = 3.3 V).
6 OUTD output Output channel D; recommended output current is limited to 4 mA low-level or 4 mA high-level at VSO = 5 V (2 mA at VSO = 3.3 V).
7 NC unconnected No internal connection; the datasheet lists this pin as not connected.
8 GND1 power_in Ground connection for VCC on the input side.
9 GND2 power_in Ground connection for VISO on the isolated output side.
10 SEL input Supply select pin: tie to VISO for VISO = 5 V; tie to GND2 or leave floating for VISO = 3.3 V, with an internal weak pull-down to GND2.
11 IND input Input channel D; the input high threshold is 0.7 × VSI minimum and the input low threshold is 0.3 × VSI maximum, and the output takes its default state (high for non-F devices) when the input is open.
12 INC input Input channel C; the input high threshold is 0.7 × VSI minimum and the input low threshold is 0.3 × VSI maximum, and the output takes its default state (high for non-F devices) when the input is open.
13 INB input Input channel B; the input high threshold is 0.7 × VSI minimum and the input low threshold is 0.3 × VSI maximum, and the output takes its default state (high for non-F devices) when the input is open.
14 OUTA output Output channel A; recommended output current is limited to 4 mA low-level or 4 mA high-level at VSO = 5 V (2 mA at VSO = 3.3 V).
15 GND2 power_in Ground connection for VISO on the isolated output side.
16 VISO power_out Isolated supply output referenced to GND2, set by SEL to 5 V (SEL tied to VISO) or 3.3 V (SEL tied to GND2 or floating).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-16-300mil
Category Signal Isolation Devices
Pins 16

CAD (KiCad official)

  • Symbol: ISOW7843DWER
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOIC-16-300mil (KiCad packages3D, STEP)
  • 3D model files: isow7843dwer-etched.step / isow7843dwer-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); isow7843dwer.step / isow7843dwer.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 2026-10-10, 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, 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