Honeywell CSNV Series Current Sensors

Honeywell CSNV Series Current Sensors are available in CSNV500, CSNV700, and CSNV1500 versions for current measurement for Battery Management Systems (BMS) in electrified vehicles (EV, HEV, PHEV, BEV). The CSNV500 and CSNV1500 feature active closed-loop current sensing using Hall-effect technology, while the CSNV700 features active flux gate current sensing and is AEC-Q100 qualified. These current sensors are non-intrusive and electrically isolated from the monitored integrated circuits to meet higher quality and reliability requirements with voltages of 500V, 700V, and 1500V. These current sensors can operate within the temperature range of -40°C to +85°C with a supply voltage range of 7V to 18V.

Features

• CAN bus output with configurable ID
• CSNV700 variant is AEC-Q100 qualified
• Different configuration options like mounting type, baud rate, CAN ID
• High accuracy and low-temperature drift
• Internal diagnostic function
• Magnetic immunity allows for easy integration into different magnetic environments
• Multi-point temperature characterization and calibration for improved accuracy over the temperature range
• REACH and RoHS-compliant
• UL, CE, UKCA certifications
• Utilizes proprietary Honeywell technology for temperature compensation

Applications

• Current leakage detection and fault isolation in charging systems
• Current measurement for BMS in electrified vehicles (EV, HEV, PHEV, or BEV)
• Current measurement in energy storage systems
• Fault detection in heavy industrial equipment

Technical Specifications

Video

This TTI Tech Specs video for Honeywell CSNV700 Series Flux Gate Current Sensors explains that these current sensors use patented technologies to measure magnetic flux and convert this reading into a current measurement that is highly accurate.

See video transcript below

Video Transcript

Measuring large currents has always been a thorn in the backsides of engineers; current sense resistors offer actual direct readings but require stupidly large resistors, and indirect measurements are often inaccurate. Well, Honeywell decided to give engineers an early Christmas present with their CSNV700 Series Flux Gate Current Sensors. These current sensors use patented technologies to measure magnetic flux and convert this reading into a current measurement that is highly accurate.

The current measuring range of these sensors ranges from -700A to +700A, so that’s a lot of amps for sure! The sensors are also capable of operating on voltages from 7V to 18V, and reading results from this device can be done over a CAN bus. Now, you might be wondering if this device is automotive qualified, as it has a CAN bus, and the answer to that question is absolute, its AEC-Q100 qualification allows it to be used in automotive applications.

View more Honeywell resources

Additional Resource

• Honeywell Sensing & Safety Solutions for Electric Vehicles Brochure (PDF)

Related Product

• Honeywell CSHV Series Open Loop Current Sensors