Product Overview
The NSM2012 is a high-accuracy, Hall-effect-based current sensor IC featuring a low on-resistance of 1.2m for reduced heat loss. It utilizes NOVOSENSE's innovative isolation technology and signal conditioning for high isolation levels, sensing current through an internal busbar. A differential Hall pair provides immunity to external stray magnetic fields. The NSM2012 supports both ratiometric and fixed output modes, with the fixed mode offering reduced sensitivity to common-mode variations like temperature through differential ADC sampling. Compared to shunt resistor and isolated op-amp solutions, it eliminates the need for a primary side power supply, simplifying layout and offering high isolation withstand voltage and lifetime stability. In high-side monitoring, it operates up to 600Vpk and withstands 6kV surge voltage without external protection. Integrated temperature compensation and factory calibration ensure accuracy across the working temperature range without secondary programming. Available in 3.3V/5V versions.
Product Attributes
- Brand: NOVOSENSE
- Certifications: UL62368/EN62368 safety certification, UL standards
- Package: SOIC8
Technical Specifications
| Parameter | NSM2012-30B3R-DSPR (3.3V) | NSM2012-30B5R-DSPR (5V) | NSM2012-10U5R-DSPR (5V) | NSM2012-20B5R-DSPR (5V) | Unit | Conditions |
| Bandwidth | 400 | kHz | ||||
| Response Time | 1.5 | us | ||||
| Isolation Voltage (VISO) | 3000 | Vrms | 60s | |||
| Surge Isolation Voltage (VIOSM) | 6 | kV | 1.2us/50us waveform | |||
| CMTI | >100 | V/ns | ||||
| Creepage/Clearance Distance | 4 | mm | ||||
| Working Temperature | -40 to 125 | C | ||||
| Primary Internal Resistance | 1.2 | m | TA = 25 | |||
| Supply Voltage (VCC) | 3 to 3.6 | 4.5 to 5.5 | 4.5 to 5.5 | V | ||
| Supply Current (ICC) | 7.5 (Typ) | 12 (Typ) | 12 (Typ) | mA | No load, Vcc=3.3V / Vcc=5V | |
| Power-on Time (Tpo) | 1 | ms | ||||
| Output Capacitance Load (CL) | 10 | nF | ||||
| Output Resistance Load (RL) | 10 | k | ||||
| Output Short Current (Ishort) | 25 | mA | Short to VCC and GND, TA = 25 | |||
| Rail to Rail Output Voltage (Vs) | 0.1 to VCC-0.1 | V | TA = 25, CL=1nF, RL=10K | |||
| Common Mode Field Rejection (CMFR) | >40 | dB | ||||
| Power Supply Rejection Ratio (PSRR) | -50 | dB | DC to 1 kHz, 100 mV pk-pk ripple around VCC =5V, IP=0A (F version only) | |||
| Rise Time (Tr) | 0.9 | us | Vout=2.2V, TA = 25, CL=1nF, VCC=3.3V, 30AB, R version | |||
| Propagation Delay (Tpd) | 0.9 | us | Vout=2.2V, TA = 25, CL=1nF, VCC=3.3V, 30AB, R version | |||
Applications
- Solar system
- Industrial power supply
- Motor control
- OBC/DCDC/PTC Heater
- Charging pile
2504101957_NOVOSENSE-NSM2012-30B5R-DSPR_C5375600.pdf
Please Use Our Online Inquiry Contact Form Below If You Have Any Questions, Our Team Will Get Back To You As Soon As Possible
