# CC6920BSO-30A

**Cross chip** · Current Sensors · SOP-8

CC6920BSO-30A from Cross chip, in a SOP-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 | IP+ | passive | Current sampled + input. One terminal of the internal low-resistance (~0.9 mΩ) copper primary conductor. Pins 1 and 2 are internally connected and should be tied together on the PCB to carry the sensed current (up to ±30 A continuous for this variant). |
| 2 | IP+ | passive | Current sampled + input. Internally connected to pin 1; both pins form the positive terminal of the isolated primary copper conduction path. |
| 3 | IP- | passive | Current sampled - input. One terminal of the internal low-resistance copper primary conductor. Pins 3 and 4 are internally connected and should be tied together on the PCB. |
| 4 | IP- | passive | Current sampled - input. Internally connected to pin 3; both pins form the negative terminal of the isolated primary copper conduction path. |
| 5 | GND | power_in | Signal-side ground reference for the secondary circuitry. All VOUT and VZCR voltages are referenced to this pin. |
| 6 | VZCR | output | Zero current reference signal output. Nominally VCC/2 (≈1.65 V at VCC=3.3 V), used as a ratiometric zero-current baseline for downstream ADCs or differential amplifiers. Source current up to 400 µA; sink current up to 3 mA. |
| 7 | OUT | output | Analog voltage output proportional to sensed primary current. VOUT = VCC/2 + 0.044 × IP (V) for the 30 A variant. Linear range 0.33-2.97 V at VCC=3.3 V; source 6 mA / sink 30 mA max. |
| 8 | VCC | power_in | Signal-side supply voltage input. Operating range 3.0-3.6 V (typ 3.3 V); typical ICC = 20 mA (25 mA max) with OUT floating. Absolute max 7 V. Decouple with 0.1 µF to GND close to pin. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Cross chip |
| Package | SOP-8 |
| Category | Sensor |
| Pins | 8 |

## Ordering variants

Same part, different packaging or reel option.

- `CC6920BSO-30A`
- `CC6920BSO-2.5A`
- `CC6920BSO-5A`
- `CC6920BSO-10A`
- `CC6920BSO-20A`
- `CC6920BSO-25A`
- `CC6920BSO-40A`
- `CC6920BSO-50A`
- `CC6920SO-XXA`

## CAD (KiCad official)

- Symbol: `CC6920BSO-30A`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `cc6920bso-30a-etched.step` / `cc6920bso-30a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cc6920bso-30a.step` / `cc6920bso-30a.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Cross chip datasheet](docs/cc6920bso-30a-datasheet.pdf) (23 pp, sha256 `bf0f27c31807521e`, 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/cc6920bso-30a-datasheet.pdf)