Product is End of Life 12/2014 Si9243A Vishay Siliconix Single-Ended Bus Transceiver DESCRIPTION FEATURES Operating Power Supply Range The Si9243AEY is a monolithic bus transceiver designed to 6 V V 36 V provide bidirectional serial communication in automotive BAT Reverse Battery Protection Down to V - 24 V diagnostic applications. BAT Standby Mode With Very Low Current Consumption The device incorporates protection against overvoltages and I = 1 A at V = 0.5 V BAT(SB) DD short circuits to V . The transceiver pin is protected and BAT Low Quiescent Current in OFF Condition can be driven beyond the V voltage. BAT I = 120 A and I 10 A BAT DD The RX output is capable of driving CMOS or 1 x LSTTL ISO 9141 Compatible load. Overtemperature Shutdown Function For K Output The Si9243AEY is built on the Vishay Siliconix BiC/DMOS Defined K Output OFF for Open GND process. This process supports bipolar transistors, CMOS, Defined Receive Output Status for Open K Input and DMOS. An epitaxial layer prevents latchup. Defined K Output OFF for TX Input Open The Si9243AEY is available in a 8-pin SO package and Open Drain Fault Output operates over the automotive temperature range (- 40 C to 2 kV ESD 125 C). The Si9243AEY is available in both standard and Typical Transmit Speeds of 200 kBaud lead (Pb)-free packages. PIN CONFIGURATION AND FUNCTIONAL BLOCK DIAGRAM GND V V DD BAT V DD + L RX L L - V DD + K RX K K - + V /2 BAT - V DD K Logic and Fault Detect Circuitry (See State Diagram and Truth Table) TX Document Number: 70788 www.vishay.com S11-0975-Rev. F, 16-May-11 1 This document is subject to change without notice. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc 91000Si9243A Vishay Siliconix OUTPUT TABLE AND STATE DIAGRAMS Over Temp STATE OUTPUT INPUTS VARIABLE TABLE TX L A B K RX RX Comments Power On K L A = 1 A = 0 00 1 1 0 0 0 11 1 1 1 1 1 . Over Temp TX 01 1 1 0 0 1 Short Circuit 10 1 1 1 1 0 XL 0 1 HiZ K L Over Temp B = 1 B = 0 Power On 0 L 1 0 HiZ K L Short Circuit TX 1 1 1 1 1 1 1 Receive Mode 10 1 1 0 0 0 Note: Over Temp is an internal condition, not meant X =1 or0 to be a logic signal. HiZ = High Impedance State ABSOLUTE MAXIMUM RATINGS Parameter Limit Unit Voltages Referenced to Ground Voltage On V - 24 to 45 BAT Voltage K, L - 16 to (V + 1) V BAT Voltage Difference V 55 (VBAT, K, L) Voltage On Any Pin (Except V , K, L) or Max. Current - 0.3 V to (V + 0.3 V) or 10 mA BAT DD Voltage on V 7V DD or GND) K Pin Only, Short Circuit Duration (to V Continuous BAT Operating Temperature (T ) - 40 to 125 A C Junction and Storage Temperature - 55 to 150 Thermal Impedance ( ) 125 C/W JA Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. RECOMMENDED OPERATING RANGE Parameter Limit Unit Voltages Referenced to Ground V 4.5 to 5.5 DD V V 6 to 36 BAT K, L 6 to 36 0 to V Digital Inputs DD www.vishay.com Document Number: 70788 2 S11-0975-Rev. F, 16-May-11 This document is subject to change without notice. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc 91000