# CC6920SO-20A

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

CC6920SO-20A from Cross chip, in a SOP-8. 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 | IP+ | passive | Current sampled positive input, part of the primary conductor (pins 1-2) with 0.9 mΩ typical resistance, rated for up to ±600 VPK relative to GND. |
| 2 | IP+ | passive | Current sampled positive input, part of the primary conductor (pins 1-2) with 0.9 mΩ typical resistance, rated for up to ±600 VPK relative to GND. |
| 3 | IP- | passive | Current sampled negative input, part of the primary conductor (pins 3-4) with 0.9 mΩ typical resistance, rated for up to ±600 VPK relative to GND. |
| 4 | IP- | passive | Current sampled negative input, part of the primary conductor (pins 3-4) with 0.9 mΩ typical resistance, rated for up to ±600 VPK relative to GND. |
| 5 | GND | power_in | Ground reference for the supply and signal side, which is isolated from the current path pins 1-4 by 3500 VRMS. |
| 6 | VZCR | output | Zero current reference signal output, with source current up to 400 µA and sink current up to 3000 µA. |
| 7 | OUT | output | Analog voltage output equal to VCC/2 at zero current, with 100 mV/A sensitivity for the 20A variant, needing a load of at least 1.5 kΩ and at most 1 nF. |
| 8 | VCC | power_in | Power supply input, operating range 4.5 V to 5.5 V (absolute maximum 7 V). |

## Key specifications

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

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Power Supply | VCC | 4.5 | 5 | 5.5 | V | TA = 25°C, VCC = 5V | 4 |
| Supply Current | ICC |  | 20 | 25 | mA | OUT pin floated | 4 |
| Zero Current Output Voltage | VOUT(Q) | 2.49 | 2.5 | 2.51 | V | IP=0 | 4 |
| Output Capacitance Load | CL |  |  | 1 | nF |  | 4 |
| Output Resistive Load | RL | 1.5 |  |  | kΩ |  | 4 |
| Res. of Primary Conductor | RP |  | 0.9 | 1.2 | mΩ | IP=2A | 4 |
| Propagation Time | tD |  | 1 | 2 | μs |  | 4 |
| Rise Time | tr |  | 1 | 2.2 | μs |  | 4 |
| Common Mode Rejection Ratio | CMRR | 38 |  |  | dB |  | 4 |
| Bandwidth | BW | 250 |  |  | kHz | -3dB | 4 |
| Reference Output Source Current | IZCR(SOURCE) |  |  | 400 | μA |  | 4 |
| Reference Output Sink Current | IZCR(SINK) |  |  | 3000 | μA |  | 4 |
| Nonlinearity | LinERR |  | 0.1 | 0.5 | % |  | 4 |
| Symmetry | SymERR |  | 0.5 | 1.5 | % |  | 4 |
| Power-on Time | TPOR |  | 10 |  | μs | Output rising from 0 to 90% of steady-state | 4 |
| Current Accuracy Range (20A) | IP | -20 |  | 20 | A |  | 5 |
| Sensitivity (20A) | Sens | 97 | 100 | 103 | mV/A | full range of IP | 5 |
| Zero Current Differential Output Error (20A) | VOE | -25 |  | 25 | mV |  | 5 |
| Noise (20A) | VN(RMS) |  | 11 |  | mV |  | 5 |
| Zero Current Output Slope (20A) | ΔVOUT(Q) |  | 0.34 |  | mV/°C |  | 5 |
| Sensitivity Slope (20A) | ΔSENS |  | 0.024 |  | mV/A/°C |  | 5 |
| Total Output Error (20A) | ETOT | -3 |  | 3 | % |  | 5 |
| Input voltage | VIN+, VIN- | -600 |  | 600 | VPK | relative to pin 5 (GND) | 4 |
| Input current (DC / AC RMS) | IP | -50 |  | 50 | A |  | 4 |
| Power Supply | VCC | 4.5 |  | 5.5 | V |  | 4 |
| Operation Temperature | TA | -40 |  | 125 | °C |  | 4 |
| Power Supply | VCC |  |  | 7 | V |  | 3 |
| Output Voltage | VOUT | -0.3 |  |  | V | -0.3~VCC+0.3 | 3 |
| Output Source Current | IOUT(SOURCE) |  |  | 6 | mA |  | 3 |
| Output Sink Current | IOUT(SINK) |  |  | 30 | mA |  | 3 |
| Input peak current (3 s) | IPEAK |  |  | 100 | A |  | 3 |
| Input continuous current | ICON |  |  | 40 | A |  | 3 |
| Isolation Voltage | VISO |  |  | 3500 | VAC |  | 3 |
| Operating Ambient Temperature | TA | -40 |  | 125 | °C |  | 3 |
| Junction Temperature | TJ |  |  | 165 | °C |  | 3 |
| Storage Temperature | TS | -55 |  | 150 | °C |  | 3 |
| ESD HBM | HBM | -6 |  | 6 | kV |  | 3 |
| ESD CDM | CDM | -1 |  | 1 | kV |  | 3 |
| Latch-up | LU | -200 |  | 200 | mA |  | 3 |
| Withstand isolation voltage | VISO |  | 3500 |  | VRMS | 50 / 60Hz, 1min | 3 |
| Primary conductor temperature coefficient |  |  | 3300 |  | ppm/° C |  | 9 |

## CAD (KiCad official)

- Symbol: `CC6920SO-20A`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `cc6920so-20a-etched.step` / `cc6920so-20a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cc6920so-20a.step` / `cc6920so-20a.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Cross chip datasheet](docs/cc6920so-20a-datasheet.pdf) (23 pp, sha256 `5fe4aa3fee763407`, retrieved 2026-10-22, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-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](docs/cc6920so-20a-datasheet.pdf)