NXP expands UJA107x family of System Basis Chips
September 1, 2010 by John Day
NXP Semiconductors has expanded its second-generation UJA107x family of CAN/LIN System Basis Chips (SBCs) for in-vehicle networks, adding four new UJA107xA models that offer enhanced electromagnetic compatibility (EMC) performance to meet the stringent requirements of automakers such as Audi, BMW, Daimler, Ford, Porsche, Renault, Toyota and Volkswagen.
The latest generation of SBCs from NXP includes:
- UJA1078A HS-CAN and dual LIN SBC
- UJA1075A HS-CAN and LIN SBC
- UJA1076A HS-CAN SBC
- UJA1079A LIN SBC
Applications for the SBCs include body control modules, climate control, seat control, electric power steering (EPS), adaptive lighting, rain/light sensors, parking assistance and transmission. Rob Bouwer, product marketing manager for Integrated Automotive Networking, said key features in the new devices include outstanding ESD and EMC performance, and very low quiescent currents, which help to reduce fuel consumption and CO2 emissions. In addition, integrated fail-safe functions such as Watchdog and Limp Home enhance automotive system safety.
Bouwer said the new SBCs feature lower quiescent current compared with first generation (UJA106) products, 75µA in standby, and 55µA in sleep mode. “A couple of years ago, automakers were interested in reducing current for applications when the car is parked,” he said, “but now they are also interested in reducing current even for applications used while driving, in order to improve fuel consumption. We expect this trend to continue, especially with hybrid and electric vehicles.”
He added, “As electronic content in cars continues to increase, EMC robustness, power efficiency and safety have become critical requirements for in-vehicle networks. We see a clear trend in the market towards higher levels of integration. This trend is fueled by the need for lower total system cost, as well as more compact, more reliable solutions.” Bouwer said the UJA107xA SBCs demonstrate the integration of high-voltage analog with digital functionality by using state-of-the-art Silicon-on-Insulator technology.
The UJA107xA core SBC integrates more than 10 active components and occupies less than half the space otherwise required for discrete solutions. It replaces the basic discrete components commonly found in ECUs with a high-speed CAN as well as LIN interfaces. In addition to the advantages gained from integrating ECU functions in a single package, the core SBC offers a combination of system-specific features such as advanced low-power concept, safe and controlled system start-up behavior, and detailed status reporting on system and sub-system levels.
The UJA107xA is designed to be used in combination with a microcontroller incorporating a CAN controller, ensuring that the MCU always starts up in a controlled manner. The UJA107xA supports the networking applications used to control power and sensor peripherals by using high-speed CAN as the main network interface and the LIN interface as a local sub-bus.
The UJA107xA SBCs are available for ordering immediately and additional information is available here. Test reports from C&S group GmbH, IBEE Zwickau, and UL, as well as the VeLIO report, are available upon request.
For more information on NXP automotive products visit http://www.nxp.com/campaigns/drivingefficiency,