component
CC6937S8-3FB050
Public Made by Adomby adom
Cross chip Current Sensors, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
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CC6937S8-3FB050
Cross chip · Current Sensors · SOP-8
CC6937S8-3FB050 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 | Primary current input (sampled +) terminal of the internal 0.5 mΩ copper conductor; current flowing from IP+ (pins 1-2) to IP- (pins 3-4) is defined as positive. |
| 2 | IP+ | passive | Primary current input (sampled +) terminal, internally tied to pin 1; current flowing from IP+ (pins 1-2) to IP- (pins 3-4) is defined as positive. |
| 3 | IP- | passive | Primary current return (sampled −) terminal; current flowing into IP- from IP+ is positive, and reversed current gives a negative output. |
| 4 | IP- | passive | Primary current return (sampled −) terminal, internally tied to pin 3; the datasheet says not to shunt IP+ to IP- externally. |
| 5 | GND | power_in | Ground reference for the sensor, used as the return for the VOUT and VREF filter capacitors (each 1 to 2.2 nF to GND). |
| 6 | VREF | power_in | Reference voltage pin that works as an output (2.50 V on the 5 V series, 1.65 V on the 3.3 V series, recommended load current 2 mA) or as an input accepting 0 to 4 V to set the quiescent VOUT. |
| 7 | VOUT | output | Single-ended analog output; quiescent voltage is 1.65 V at zero current on the 3.3 V series, with linear operating range ±1.32 V around it and 1 to 2.2 nF filter capacitance to GND. |
| 8 | VCC | power_in | Supply voltage; the 3.3 V series is specified from 3.0 V to 3.6 V (nominal 3.3 V), with undervoltage lock-out released at 2.8 V and absolute maximum VCC of 6.5 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Cross chip |
| Package | SOP-8 |
| Category | Magnetic 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 |
|---|---|---|---|---|---|---|---|
| Current Accuracy Range | IP | -50 | 50 | A | 12 | ||
| Zero Current Differential Output Error | VOE | -5 | 5 | mV | TA=25°C，VOE=VOUT-VREF，IP=0A | 12 | |
| Zero Current Output Offset Drift | ΔVOE | -15 | 15 | mV | TA=-40°C ~125°C | 12 | |
| Zero Current Quiescent Output Voltage (3.3V series, CC6937S8-3FB050) | VOUT(Q) | 1.64 | 1.65 | 1.66 | V | TA=25°C，IP=0A | 12 |
| Zero Current Quiescent Output Voltage Temperature Drift | ΔVOUT(Q) | -15 | 15 | mV | TA=-40°C ~125°C | 12 | |
| Sensitivity Error | ΔSENS | -3 | 3 | % | TA=-40°C ~ 125°C | 12 | |
| Total Output Error | ETOT | -3.5 | 3.5 | % | TA=-40°C ~ 125°C，IP=IP_MAX | 12 | |
| Power Supply (3.3V nominal series) | VCC | 3 | 3.3 | 3.6 | V | 5 | |
| Quiescent Current (3.3V nominal series) | ICC | 7 | 9 | 11 | mA | 5 | |
| Zero Current Quiescent Output Voltage (3.3V nominal supply voltage series, general table) | VOUT(Q) | 1.644 | 1.65 | 1.656 | V | 3.3V nominal supply voltage series | 5 |
| VREF Output Voltage (3.3V nominal supply voltage series) | VREF | 1.6 | 1.65 | 1.7 | V | 3.3V nominal supply voltage series | 5 |
| VREF Input Voltage | VREFIN | 0 | 4 | V | VREF Input voltage range | 5 | |
| VOUT Filter Capacitors | COUT | 1 | 2.2 | nF | VOUT to GND | 5 | |
| VREF Filter Capacitors | CREF | 1 | 2.2 | nF | VOUT to GND | 5 | |
| Sensitivity | Sens | 26.4 | mV/A | full range of IP | 12 | ||
| Noise | VN(RMS) | 4.5 | mV | IP=0A | 12 | ||
| Undervoltage Protection Release Threshold (3.3V series) | UV | 2.8 | V | VCC> UV,Undervoltage protection release | 5 | ||
| Undervoltage Protection Hysteresis Voltage (3.3V series) | UVHYS | 0.16 | V | VCC < UV - UVHYS，Lock the chip | 5 | ||
| VOUT Load Resistance | RL_OUT | 1.5 | kΩ | VOUT to GND | 5 | ||
| VREF Load Resistance | RL_REF | 1.5 | kΩ | VOUT to GND | 5 | ||
| VOUT Output Short Circuit Current, to GND | IOUT_SC_GND | 30 | mA | VOUT to GND short-circuit current | 5 | ||
| VOUT Output Short Circuit Current, to VCC | IOUT_SC_VCC | 30 | mA | VOUT to VCC short-circuit current | 5 | ||
| VREF Output Short Circuit Current, to GND | IREF_SC_GND | 5 | mA | VREF to GND short-circuit current | 5 | ||
| VREF Output Short Circuit Current, to VCC | IREF_SC_VCC | 5 | mA | VREF to VCC short-circuit current | 5 | ||
| Signal Chain -3dB Bandwidth | f-3dB | 230 | kHz | Small signal -3dB bandwidth | 5 | ||
| Signal Response Time | tRES | 1.5 | us | Input current up to 90% to VOUT 90% | 5 | ||
| Primary on-resistance | RP | 0.5 | mΩ | TA=25°C; IP= 2A | 5 | ||
| Power Supply Voltage (absolute maximum) | VCC | 6.5 | V | 4 | |||
| Output Source Current (absolute maximum) | IOUT(SOURCE) | 25 | mA | 4 | |||
| Operating Ambient Temperature | TA | -40 | 125 | °C | 4 | ||
| Junction Temperature | TJ | 165 | °C | 4 | |||
| Storage Temperature | TS | -55 | 150 | °C | 4 | ||
| Electrostatic Discharge Voltage, HBM | HBM | 4 | kV | 4 | |||
| Electrostatic Discharge Voltage, CDM | CDM | 1 | kV | 4 | |||
| Latch Up | LU | 200 | mA | 4 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | copper | interference of external magnetic field. The typical resistance of the primary current input conductor at 25°C is 0.5mΩ. The lead frame is made of copper. The temperature | 28 |
CAD (KiCad official)
- Symbol:
CC6937S8-3FB050 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
cc6937s8-3fb050-etched.step/cc6937s8-3fb050-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cc6937s8-3fb050.step/cc6937s8-3fb050.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Cross chip datasheet (40 pp, sha256
7e94e7934f32e852, retrieved 2026-10-19, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).