最新动态
ESDB1524GW-AQ - Reliable ESD Protection for LIN and CXPI Automotive Bus Systems
The Local Interconnect Network (LIN), also known as the LIN bus, is a serial fieldbus for networking sensors, actuators and human-machine interfaces in automotive applications. CXPI (Clock eXtension Peripheral Interface) was developed to overcome certain disadvantages of the widely used LIN bus, but largely shares the physical layer with it. Needless to say that such bus systems require ESD protection, since they are highly affected by human-induced discharges according to the standard IEC 61000-4-2 human body model (HBM).
The automotive standard ISO 16750-2 requires in addition during jump start an overvoltage capability of +24 V, and for reverse battery events an undervoltage of -15 V. ESD protection diodes must overcome both voltage ranges, and are ideally in asymmetric configuration. The ESDB1524GW-AQ was developed for such requirement, and offers a comfortable ESD capability of ± 30 kilovolts. Its high peak pulse power and low reverse leakage currents address the particular needs of LIN and CXPI buses.
Features
- High ESD capability
- Asymmetric configuration according to ISO 16750-2:
- +24 V for jump start
- -15 V for reverse battery
- Compliant to ROHS, REACH, Conflict Minerals
- AEC-Q101 qualified
Applications
- LIN and CXPI bus protection
- ESD protection
- Data line & I/O port protection
- Human-machine interfaces
- Automotive Gateway Protection
Specifications
- +24 V stand-off voltage in forward (VWM1)
- -15 V stand-off voltage in reverse (VWM2)
- ESD capability of ± 30 kV (VPP)
- Peak pulse power at 8/20 µs pulse 200 W (PPPM)
- Maximum reverse current 50 nA (ID)