LT1796

·  Protected from Overvoltage Line Faults to ±60V
·  ESD Protection to IEC-1000-4-2 Level 4
   ±15kV Air Gap Test
   ±8kV Contact Mode Test
·  High Input Impedance Supports Up to 256 Nodes
·  Controlled Slew Rates for EMI Emissions Control
·  Outputs Assume a High Impedance When Off or Powered Down
·  Short-Circuit Protection On All Outputs
·  Thermal Shutdown Protection
·  Pin Compatible with Philips PCA82C251

·  Industrial Control Data Networks
·  Automotive Systems
·  HVAC Controls

Supply Voltage (V_CC) .............................................. 44V
RS Slope Control Input Voltage ................ 0.3V to 44V
VREF Reference Output Pin ........................ 0.3V to 7V
Driver Input Voltage ................................. 0.3V to 44V
CANH, CANL Data Line Pins ...................... 80V to 80V
Receiver Output Voltages ............................0.3V to 7V
Operating Temperature Range
LT1796C ...................................................... 0 to 70
LT1796I .................................................. 40 to 85
Storage Temperature Range ................. 65 to 150
Lead Temperature (Soldering, 10 sec).................. 300

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 LT1796 circuit operates with data rates up to 1Mbaud. 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 72W.

The 100kW input impedance allows up to 256 transceivers per data network.

The LT1796 is available in 8-lead PDIP and SO packages.