Why Review the NOVOSENSE Range

NOVOSENSE Microelectronics focuses on sensor, signal chain and power management, and it has built a full isolation platform on a capacitive barrier that runs across digital isolators, isolated amplifiers, isolated gate drivers and current sensors. The datasheets give the numbers, but the datasheet only tells part of the story. This review examines the isolators, the amplifiers, the drivers and the sensors from the perspective of an FAE who supports customers through selection and validation, focusing on the isolation, the common-mode transient immunity, the accuracy and the automotive options.

The Digital Isolators

The NOVOSENSE digital isolator family covers two-channel, four-channel and multi-channel parts with data rates up to 150 Mbps and isolation ratings from about 3 kVrms to 8 kVrms, and several parts integrate an isolated DC-DC converter that carries power across the same barrier. On the bench the data integrity held at the rated rate and at a large common-mode step, which is the practical benefit of the high CMTI, and the low radiated emission suits a dense, fast-switching board. The small SOIC and the wider SOW packages cover a range of creepage needs.

The Isolated Amplifiers and Gate Drivers

The isolated amplifiers, such as the NSI1300 and the automotive NSI1311-Q1, measure a small differential voltage on the high-voltage side with a linear input and a differential output, and the high CMTI keeps the reading accurate when the power stage switches. The isolated gate driver NSi6801 sources and sinks a 5 A peak current with a fast propagation and a high CMTI, and it is pin-compatible with a popular opto driver, so it is a drop-in upgrade. On the bench the gate waveform was clean and the current reading was stable under the switching transient.

The Current Sensors

The current-sensing range includes an integrated sensor, the NSM2311, that combines the conductor and the sensing for a low impedance and a high current capacity, and a current sense amplifier, the NSCSA240-Q, that measures the shunt voltage with a good rejection of the pulse-width-modulation transient. On the bench the isolated measurement tracked the reference current and the accuracy stayed stable over temperature, and the integrated sensor gave a low insertion loss at a high current.

Isolation and Automotive Options

The strength of the NOVOSENSE range is the shared capacitive isolation platform, which means a designer can build a complete isolated chain from one supplier with a consistent technology. The automotive-grade parts, marked Q1 and tested to AEC-Q100 Grade 1, extend the same benefit into an under-hood design, which matters for an EV traction inverter or a battery system.

Verdict

The NOVOSENSE range earns its reputation. The capacitive isolators give a clean, long-life barrier with a high CMTI, the isolated amplifiers and gate drivers bring that barrier to the analog and the drive side of a power stage, and the current sensors cover an isolated high-current measurement, all with automotive options and a competitive cost. BeiLuo holds the mainstream models in regional stock and ships them with an import declaration, a certificate of origin and a RoHS compliance file, so you can evaluate a sample and move to production without a supply gap.