NSM2012-20B3R-DSPR

Current Sensors Overview

The NSM2012-20B3R-DSPR is a high-accuracy integrated path current sensor based on Hall effect principles, designed for AC/DC measurement. It features a 1.2 mΩ internal busbar resistance to minimize thermal loss and provides ±20 A sensing range with 100 mV/A sensitivity. The device operates on a 3 V to 3.6 V supply, offering 3000 Vrms isolation and supporting up to 6 kV surge voltage without external protection. Key electrical parameters include a 400 kHz bandwidth, 1.5 µs response time, and operation across -40°C to +125°C. It utilizes differential Hall pairs for common-mode field rejection and includes factory-calibrated temperature compensation.

Current Sensors Feature Summary

• Integrates a low-resistance internal busbar to reduce chip heat dissipation while maintaining high isolation levels.
• Employs differential Hall pairs to provide strong immunity against external stray magnetic fields.
• Features factory-calibrated precision and temperature compensation algorithms for stable accuracy across the full operating temperature range.
• Supports ratiometric output mode to facilitate ADC differential sampling and reduce common-mode interference.

Current Sensors Applications

• High-side current detection in systems requiring 600 Vpk working voltage
• Automotive battery management and power distribution units
• Industrial motor control and inverter drive circuits
• Renewable energy solar inverter monitoring

Current Sensors Procurement Notes

Verify the specific suffix 'DSPR' corresponds to the Cut Tape packaging variant as listed in distributor catalogs. Confirm that the 3 V to 3.6 V supply voltage requirement aligns with your system design, as this differs from other variants in the series. Ensure the SOIC-8 package footprint matches your PCB layout constraints before finalizing orders.

Current Sensors Selection Notes

Select this component when high isolation and low conduction loss are critical compared to traditional shunt resistor solutions. It eliminates the need for primary side power supplies and complex layout requirements associated with isolated amplifier circuits. Choose this part for applications demanding robust common-mode noise rejection and simplified signal conditioning without secondary programming.

Current Sensors Part Context

This model belongs to the NSM2012 series of integrated path current sensors manufactured by NOVOSENSE. It represents a specialized solution for high-voltage isolation and precise current monitoring in compact surface-mount packages. The series is designed to replace discrete shunt and amplifier combinations, offering enhanced reliability and reduced board space in power electronics applications.

Current Sensors Replacement Considerations

NSM2012-20B5R-DSPR

Current Sensors FAQ

Does the NSM2012-20B3R-DSPR require external calibration?

No, the device includes internal precise temperature compensation algorithms and factory calibration, allowing it to maintain accuracy across the full operating temperature range without customer secondary programming.

What is the maximum surge voltage tolerance?

The sensor can withstand 6 kV surge voltage without any additional external protection devices, making it suitable for high-voltage high-side current detection applications.