SI9243AEY Datasheet | Vishay

FEATURES D Operating Power Supply Range 6 V v VBAT v 36 V D Reverse Battery Protection Down to VBAT w - 24 V D Standby Mode With Very Low Current Consumption IBAT(SB) = 1 m A @ VDD = 0.5 V D Low Quiescent Current in OFF Condition IBAT = 120 m A and IDD v 10 m A D ISO 9141 patible D D D D D D Overtemperature Shutdown Function For K Output Defined K Output OFF for Open GND Defined Receive Output Status for Open L or K Inputs Defined K Output OFF for TX Input Open 2-k V ESD Typical Transmit Speeds of 200 k Baud DESCRIPTION The Si9243AEY is a monolithic bus transceiver designed to provide bidirectional serial munication in automotive diagnostic applications. The device incorporates protection against overvoltages and short circuits to VBAT. The transceiver pin is protected and can be driven beyond the VBAT voltage. The RX output is capable of driving CMOS or 1 LSTTL load. The Si9243AEY is built on the Vishay Siliconix Bi C/DMOS process. This process supports bipolar transistors, CMOS, and DMOS. An epitaxial layer prevents latchup. The Si9243AEY is available in a 8-pin SO package and operates over the automotive temperature range (- 40 to 125_C). PIN CONFIGURATION AND FUNCTIONAL BLOCK DIAGRAM VDD VBAT RXL VDD + L - L + K - + VBAT/2 - VDD K Logic and Fault Detect Circuitry (See State Diagram and Truth Table) Document Number: 70788 S-02936- Rev. D, 22-Jan-01 .vishay. Vishay Siliconix OUTPUT TABLE AND STATE DIAGRAMS Over Temp STATE INPUTS VARIABLE TX L 0 1 1 0 L L 1 0 OUTPUT TABLE 0 1 0 1 Hi Z Hi Z 1 0 1 1 1 1 0 1 1 1 1 1 1 1 1 0 1 1 0 1 0 1 K K 1 0 0 1 1 0 L L 1 0 ments Power On A=1 Over Temp @ TX Short...