L9669013TR

L9669 FAULT TOLERANT CAN TRANSCEIVER ■ ■ ■ ■ ■ ■ ■ ■ FAULT TOLERANT DIFFERENTIAL CAN TRANSCEIVER OPERATING SUPPLY VOLTAGE 6V TO 28V, TRANSIENTS UP TO 40V LOW QUIESCENT CURRENT IN STANDBY MODE (100µA) AND SLEEP MODE (37µA) ON CHIP DIAGNOSIS FOR ERRORS ON THE PHYSICAL BUSLINES WITH MICRO CONTROLLER INTERFACE OPTIMIZED EMI BEHAVIOUR DUE TO LIMITED AND SYMMETRIC SLOPES OF CAN SIGNALS AUTOMATIC SWITCHING TO SINGLE WIRE MODE UPON BUS FAILURES TWO-EDGE SENSITIVE WAKE-UP PIN SUPPORTS TRANSMISSION WITH GROUND SHIFT VOLTAGES ACCORDING TO GIFT SPECIFICATION: – SINGLE WIRE: 1.5V Figure 1. Block Diagram KL30 (+12V) SO14 ORDERING NUMBER: L9669 ■ – DIFFERENTIAL WIRE: 3V AN UNPOWERED NODE OR UNSUFFICIENT SUPPLIES DO NOT DISTURB THE BUS LINES c u d DESCRIPTION ) s t( o r P The L9669 is an integrated circuit which contains a CAN physical line interface. It integrates all main local functions for automotive body electronic applications connected to a CAN bus. e t le o s b O - Voltage +5V Regulator ) s ( ct VS 14 5Vint u d o 75k WAKE 7 r P e VCC Wake-up Control VCC 10 INH 1 CANH Driver 11 CANH 12.5k t e l o TXD 2 CANH Driver s b O Filter Receiver NSTB EN 6 Low Power Control Error Management & Diagnosis R RTH 3 CANH Termination 5 CANL Termination R RTL RXD 8 RTH 9 RTL 4 100k CAN BUSLINE 12 CANL TXD Control NERR 100k 13 GND 99AT0001 December 2003 1/14 L9669 Figure 2. Pin Connection top view. INH 1 14 VS TXD 2 13 GND RXD 3 12 CANL NERR 4 11 CANH NSTB 5 10 VCC EN 6 9 RTL WAKE 7 8 RTH 99AT0002 Table 1. Pin Functions Pin 1 INH Inhibit Output - for switching external 5V Regulator 2 TXD Transmit Data Input - active LOW dominant Bit transmission 3 RXD Receive Data Output - active LOW dominant Bit reception 4 NERR Error/Diagnostic Output - active LOW error/Wake-up and Diagnostic output 5 NSTB Not Standby Input - Digital control signal for low power modes 6 EN 7 WAKE 8 RTH Termination Resistor for CANH - controlled by internal error management 9 RTL Termination Resistor for CANL - controlled by internal error management 10 VCC 11 CANH High Voltage Bus Line - High: dominant state CANL Low Voltage Bus Line - Low: dominant state GND Ground bs 13 Function 14 VS e t le o r P o s b O - Enable Input/Diagnostic Clock Digital control signal for low power modes/Diagnostic clock ) s ( ct Wake-Up Input - If level of VWAKE changes the device initiates a wake-up from sleep mode by switching INH to VS u d o r P e t e l o 12 O c u d N° ) s t( Supply Voltage Input - +5V Battery Voltage Input - +12V Table 2. Thermal Data Symbol Rthj-amb 2/14 Parameter Thermal resistance junction to ambient Value Unit 120 °C/W L9669 Table 3. Absolute Maximum Ratings For externally applied voltages or currents exceeding these limits damage of the circuit may occur! Symbol Parameter Value Unit DC operating battery voltage -0.3 to +28 V VS-P Pulse operating battery voltage (t