GO Series Integrated Current Sensors : GO SMS and GO SME
Standard package, small footprint, cost effective Integrated Current Sensors
GO is the first LEM Current Sensor IC series. It was designed by our R&D teams to meet the needs of many industries in standard package cost effective current sensors with a small footprint. It benefits from 15 years of experience of our teams in ASIC design, and shows 2 key references, GO SME and GO SMS, SOIC 8 and 16 solutions. They can be used for your AC and DC current measurement in both industrial and automotive applications like small drives and e-bikes but also inverters, DC/DC converters, white good and OBCs.
GO SME
Key features
- Open loop multi-range current sensor: 50 A
- Low electrical resistance 0.9 mΩ
- Dual supply voltage 5 V or 3.3 V
- Low power consumption
- High bandwidth: 300 kHz
- No magnetic hysteresis
- Galvanic separation between primary and secondary with 4 mm of dCl and dCp
- Insulated test voltage 2400 V RMS
- Small footprint with standard surface mount PCB mounting
- AEC-Q-100 Grade 1
Applications
- Small drives
- HVAC inverters
- Appliances
- Solar inverters
- E-Bikes
- Automotive & Industry qualified.
Technical Documentation
GO SME AT A GLANCE
Product name | Order Parts | Order | Nominal | Current | Nominal | Supply Voltage [Uc] | Ratiometric | Temp. range [°C] |
|---|---|---|---|---|---|---|---|---|
| GO 10-SME | 80 | ± 25 | ±10 | 5V | No | -40 to 125°C | ||
| GO 20-SME | 40 | ± 50 | ±20 | 5V | No | -40 to 125°C | ||
| GO 8-SME/SP2 |
|
| 100 | ± 20 | ±8 | 5V | Yes | -40 to 125°C |
| GO 12-SME/SP2 |
| 66 | ± 30 | ±12 | 5V | Yes | -40 to 125°C | |
| GO 20-SME/SP2 |
| 40 | ± 50 | ±20 | 5V | Yes | -40 to 125°C | |
| GO 10-SME/SP3 | 50 | ± 25 | ±10 | 3.3V | No | -40 to 125°C | ||
| GO 20-SME/SP3 | 25 | ± 50 | ±20 | 3.3V | No | -40 to 125°C | ||
| GO 8-SME/SP4 |
| 62,5 | ± 20 | ±8 | 3.3V | Yes | -40 to 125°C | |
| GO 15-SME/SP4 |
| 41,67 | ± 37.5 | ±15 | 3.3V | Yes | -40 to 125°C |
GO SMS
Key features
- Open loop multi-range current sensor: 75 A
- Low electrical resistance 0.75 mΩ
- Dual supply voltage 5 V or 3.3 V
- Dual overcurrent detection
- Low power consumption
- High bandwidth: 300 kHz
- No magnetic hysteresis
- Galvanic separation between primary and secondary with 7.4 mm of dCl and 7.4 mm of dCp
- Insulated test voltage 4800 V RMS (UL 62368)
- Small footprint with standard surface mount PCB mounting
- AEC-Q-100 Grade 1.
Applications
- Small drives
- HVAC inverters
- Appliances
- Solar inverters
- Automotive & Industry qualified.
Technical Documentation
Go SMS at a glance
Product name | Order Parts | Order | Nominal | Current | Nominal | Supply Voltage [Uc] | Ratiometric | Temp. range [°C] |
|---|---|---|---|---|---|---|---|---|
| GO 10-SMS | 80 | ± 25 | ±10 | 5V | No | -40 to 125°C | ||
| GO 20-SMS | 40 | ± 50 | ±20 | 5V | No | -40 to 125°C | ||
| GO 30-SMS | 26,67 | ± 75 | ±30 | 5V | No | -40 to 125°C | ||
| GO 4-SMS/SP3 |
| 120 | ± 10.4 | ±4.17 | 3.3V | No | -40 to 125°C | |
| GO 10-SMS/SP3 | 50 | ± 25 | ±10 | 3.3V | No | -40 to 125°C | ||
| GO 20-SMS/SP3 | 25 | ± 50 | ±20 | 3.3V | No | -40 to 125°C | ||
| GO 30-SMS/SP3 | 16,67 | ± 75 | ±30 | 3.3V | No | -40 to 125°C | ||
| GO 8-SMS/SP4 |
| 62,5 | ± 20 | ±8 | 3.3V | Yes | -40 to 125°C | |
| GO 12-SMS/SP4 |
|
| 41,67 | ± 30 | ±12 | 3.3V | Yes | -40 to 125°C |
Standards & Certificates
| GO Series |
|---|
| IEC 61800-5-1: 2007 |
| IEC 62109-1: 2010 |
| IEC 62368-1:2018 (supersedes IEC 60950-1: 2005) |
| UL 1577: 2014 |
| UL 62368: 2019. |
Download our Current Sensor IC Whitepaper
Explore the world of integrated current sensors with our comprehensive whitepaper.
As electronics become more powerful and compact, isolated current sensors offer a solution for accurate, reliable current sensing in space-constrained applications.
This guide provides an in-depth look into the efficient and safe applications of these sensors, reflecting LEM's commitment to innovation and sustainability.