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New Products

  Date: 25/03/2013

Automotive grade CAN transceiver with built in isolation feature

NXP Semiconductors N.V. has introduced the TJA1052i, a high-speed Controller Area Network (CAN) transceiver with integrated galvanic isolation technology. The TJA1052i is compliant with ISO11898-2, making it right IC for AEC-Q100 automotive grade quality.

The TJA1052i is designed for all types of CAN networks where high- and low-voltage networks co-exist – such as in electric and hybrid vehicles – and require galvanic isolation for safety reasons. Isolation feature acts as safely bridge between high and low voltage levels. This IC saves designers from using Opto Couplers to isolate the CAN transceiver. The TJA1052i provides protection against electric shocks, over voltage, ground offset and reverse current, while significantly improving signal integrity in noisy electromagnetic environments.

Hybrid/Electric Vehicles(H/EV) are equipped with multiple battery modules – typically controlled via CAN by the Battery Management System - which together can supply up to 500 Volts and also power other high-voltage applications such as Inverter, Start/Stop, DC/DC Converter, Charger and Air Conditioning systems. These systems need to communicate with other Electronic Control Units (ECUs) via the CAN Bus, and are typically operated from the 12V board net.

Other applications requiring isolation built in CAN transceiver includes industrial applications where ECUs controlling high voltage applications and other ECUs need to be connected to each other via the CAN bus. Application examples for the TJA1052i in non-automotive areas are industrial equipment, energy storage systems, building automation and H/EV charging stations.

“The TJA1052i is another great example of NXP's strategy to both connect the car and improve energy efficiency - even under challenging conditions," said Toni Versluijs, vice president and general manager, in-vehicle networking business, NXP Semiconductors. "Our third-generation automotive CAN transceivers are already approved and used by multiple OEMs. By integrating galvanic isolation into the TJA1052i, we are first in the industry to deliver an automotive-grade solution that saves both space and money, while making it easier for our customers to build and connect their ECUs.”

Availability: The TJA1052i is ramping up in production with immediate effect.

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