Atmel has rolled out the ATA663254, a new flagship LIN system basis chip (SBC) for low-power, local interconnect networking systems used for automotive comfort, power-train, sensor and actuator applications. It should be noted that Atmel’s ATA663254 is the first available product in this series of new LIN devices.
Atmel’s new generation of LIN SBC devices deliver significantly lower current consumption in various modes of operation. Meanwhile, the integrated low dropout voltage regulator (LDO) can be used in combination with low-cost MLC (multi-layer ceramic) blocking capacitors – providing significant cost savings compared to solutions leveraging tantalum capacitors.
According to Rob Valiton, Senior Vice President and General Manager, Automotive, Aerospace and Memory Business Units, the improved voltage regulator works down to 2.3V supply voltage with best-in-class current consumption.
“This enables storing data within the MCU during system shutdown in case of unintended power supply interruption. The advanced features of the ATA663254 enable system designers to design best-in-class in-vehicle network applications in the latest automobiles. The devices are LIN specification 2.0, 2.1, 2.2, 2.2A and SAE J2602-2 certified,” he said.
“[In addition, our] new cost-optimized and performance enhanced LIN SBC is developed on a proprietary BCD-on-SOI (Bipolar CMOS and DMOS-on-Silicon on Insulator) process technology that combines high-voltage capability with rugged silicon on insulator technology. This combination allows for high-temperature operation, excellent EMC performance and very low leakage currents.”
Valiton also noted that the new LIN SBC device addresses the latest requirements for in-vehicle networking systems such as lower power consumption, more compact PCB board designs and enabling an overall lower system cost.
“As the automotive design cycle continues to shorten, Atmel is committed to delivering the most innovative automotive products that enable customers to bring their unique, next-generation designs quickly to market,” he added.
Key ATA663254 features include:
- LIN Trx + 5V LDO
- LIN physical layer according to LIN 2.0, 2.1, 2.2, 2.2A and SAEJ2602-2
- LDO: 5V/85mA±2%
- MLC blocking capacitors instead of tantalum improve overall system cost
- Works down to 2.3V supply voltage
- Supply current
- Sleep mode current <15µA
- Normal mode current <290µA
- Low Linear mode current (2V<VS<5.5V) <170µA enables data-storage during unintended power supply interruption
- Compact DFN8 package
- Heat slug
- Wettable flanks for automatic optical inspection
- Pinout according to the new OEM hardware recommendations
To accelerate the design cycle, Atmel is currently offering the ATAB663254A-V1.2 development kit for engineers. Key specs are as follows:
- Provides all components necessary to drive the ATA663254
- Choice of master or slave operation
- All pins easily accessible
- Switching into normal, silent or sleep mode
- LEDs for operation indication
- Ground coulter clip for easy probe connection while measuring with oscilloscope
Interested in learning more about Atmel’s comprehensive LIN portfolio? You can check out our LIN product breakdown here.