For up to +150 °C
Texas Instruments (TI) introduced the TCAN1044EV-Q1 Grade 0 CAN FD transceiver and the ISO7741E-Q1 Grade 0 digital isolator for reliable communication and protection in (hybrid) electric vehicle systems that exceed +125 °C.
The devices are qualified to the Grade 0 ambient operating temperature specification of the AEC-Q100 (Automotive Electronics Council) standard supporting temperatures of up to +150 °C. The transceiver complying with the ISO 11898-2:2016 supports Classical CAN and CAN FD networks with data rates up to 8 Mbit/s. The chip includes internal logic level translation to allow for interfacing the transceiver I/Os directly to 1,8‑V, 2,5‑V, 3,3‑V, or 5‑V logic I/Os. It also supports a low-power stand-by mode and a wake over CAN wake‑up pattern (WUP). Integrated protection and diagnostic features include thermal-shutdown (TSD), TXD-dominant time-out, supply undervoltage detection, and bus fault protection up to ±58 V.
The isolator features an 1,5-kV RMS (root mean square) working voltage and a‑5 kV RMS isolation voltage. It enables engineers to protect low-voltage circuitry from high-voltage events in a vehicle’s systems. The device can be used in 48‑V HEVs (hybrid electric vehicles) where the co-existence of internal combustion engines and battery systems can heat the air around ICs beyond +125 °C. Using the isolator with the CAN FD transceiver engineers can increase the in-vehicle network (IVN) signal protection and signal reach as well as used data-rates.
The ISO7741E-Q1 isolator is available from TI and authorized distributors in a 10,3‑mm x 7,5‑mm 16-pin package. TCAN1044EV-Q1 transceivers are available from TI in 4,9‑mm x 3,91‑mm 8‑pin packages. TI’s products are at work in electronic systems reaching from connected cars and so called smart homes to self-monitoring health devices and automated factories. With about 30 000 employees in more than 30 countries, the company engineers, manufactures, tests, and sells analog and embedded semiconductor chips.
News and reports