Novosns launched a new integrated isolation power supplyDigital isolator--- Nirsp31, can be widely used in two-wheeled BMS, energy storage BMS, airbreakerIsolation bus interface design in non-standard electric table applications.

Small size high reliability low cost

The NIRSP31 chip integrates an isolation power supply and a three-way digital isolator. Isolation power supplies industry-leadingtransformerTechnology, has independent IP, which greatly reduces the floor area, improves integration, simplifies design, and uses advanced LGA packages, size to 4mm × 5mm, lowered Chip manufacturing cost. And integrated closed loop controlCircuitNo need to addLDOThat is, excellent load adjustment rate can be achieved, with an EN pin, support shutdown low power consumption, which is very suitable for static power consumption requirements.BatteryRelated applications.

Lower cost lower power plan comparison

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ComparedinterfaceIsolation commonly used in isolationPower module+Optocoupler+CAN/ 485transceiverSolution, it can be seen that the right side uses a new integrated isolation power supply three-way digital isolation chip NIRSP31 +Interface chipGreatly reducedPCBThe area and the number of peripheral devices have also brought better performance experience while reducing overall solution costs.

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Main performance of NIRSP31

· 2kvrms insulation withstand voltage

· Power supply voltage:

• VDD: 4.5V to 5.5V
• VDDL: 1.8V to 5.5V

· Output: 3.3V or 5V, 60mA

· Overcurrent (110mA) and over temperature (165 ° C) protection

· High CMTi: 50KV / US

· Transmission delay: "50ns

· Data rate: 20Mbps

· High system levelEMCperformance:

• Enhanced system-level ESD, EFT, and surge protection capabilities

· Work temperature: -40 ° C ~ 105 ° C

· Package: LGA18 4MM × 5mm

Industrial BMS application

In an industrial BMS application, NIRSP 31 can be used to isolate 485 and CAN communication between the battery pack MCU and the external ECU, no need to add an isolated power supply and output side LDO (good load adjustment rate) to ensure continuity of communication, to ensure the system normal operation.

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In addition to NIRSP31, two-wayI2CIsolatorNSI8100, double low-side drive NSD1025, universal CAN transceiver NCA1042 / NCA1051 chip is suitable for industrial BMS applications, all of which have been produced, such as demand telephone 0512-62601802 consult.