ACPL-C78A-500E

@@ -0,0 +1,52 @@+# ACPL-C78A-500E++**Broadcom AVAGO** · Isolation Amplifiers · SO-8++ACPL-C78A-500E from Broadcom AVAGO, in a SO-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | VDD1 | power_in | Supply voltage for the input (isolator primary) side, 4.5 V to 5.5 V, referenced to GND1. A 0.1 µF bypass capacitor must be connected between pins 1 and 4. |+| 2 | VIN+ | input | Positive analog input to the sigma-delta modulator. Recommended linear input range ±200 mV; absolute steady-state limits −2 V to VDD1 + 0.5 V. Typically driven by the high side of the current-sense shunt. |+| 3 | VIN- | input | Negative analog input to the sigma-delta modulator, normally connected to GND1 (shunt low side / input-side ground reference). |+| 4 | GND1 | power_in | Input-side ground (isolator primary). Ground return for VDD1 and the analog input signal. |+| 5 | GND2 | power_in | Output-side ground (isolator secondary). Ground return for VDD2 and the differential output. |+| 6 | VOUT- | output | Negative side of the fully differential analog output. Output range −0.5 V to VDD2 + 0.5 V (absolute max). |+| 7 | VOUT+ | output | Positive side of the fully differential analog output. Together with VOUT- forms a differential voltage proportional to the input current-sense signal. |+| 8 | VDD2 | power_in | Supply voltage for the output (isolator secondary) side, 4.5 V to 5.5 V, referenced to GND2. A 0.1 µF bypass capacitor must be connected between pins 5 and 8. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Broadcom AVAGO |+| Package | SO-8 |+| Category | Signal Isolation Devices |+| Pins | 8 |++## Ordering variants++Same part, different packaging or reel option.++- `ACPL-C78A-500E-000E`+- `ACPL-C78A-500E-060E`+- `ACPL-C78A-500E`+- `ACPL-C78A-500E-560E`++## CAD (KiCad official)++- Symbol: `ACPL-C78A-500E`+- Footprint: `Package_SO:TI_SO-PowerPAD-8`+- 3D model: SO-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Broadcom AVAGO datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590208168661061632) (17 pp, sha256 `45124e6469995049`, retrieved 2026-08-17, tier: lcsc)+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/acpl-c78a-500e-datasheet.pdf)

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