特點
Protected from Overvoltage Line Faults to ?60V
ESD Protection to IEC-1000-4-2 Level 4
±15kV Air Gap Test
±8kV Contact Mode Test
ISO 11898 Compatible
High Input Impedance Supports Up to 256 Nodes
Controlled Slew Rates for EMI Emissions Control
High Impedance Outputs When Off or
Powered Down
Short-Circuit Protection On All Outputs
Thermal Shutdown Protection
Pin Compatible with Philips PCA82C251
典型應用
典型應用
描述
The LT?1796 CAN transceiver provides built-in fault tolerance to survive in industrial and automotive environments. Discrete protection devices are not needed. Bus interface pins can withstand voltage faults up to ±60V with respect to ground with no damage to the device. Faults may occur while the transceiver is active, shut down or powered off. On-chip ESD protection withstands up to ±15kV air discharges and ±8kV contact mode discharges tested per IEC-1000-4-2. Loss of power or ground connections does not damage the IC.
The circuit operates with data rates up to 125kbaud. A slew control pin allows control of transmitted data pulse edges to control EMI and reflection problems on imperfectly terminated lines. High output current drive allows the use of inexpensive PVC cable with impedance as low as 72Ohm. The 100kOhm input impedance allows up to 256 transceivers per data network.
The LT1796 is available in 8-lead PDIP and SO packages.