SI9241AEY-T1-E3

Si9241A Vishay Siliconix Single-Ended Bus Transceiver DESCRIPTION The Si9241AEY is a monolithic bus transceiver designed to provide bidirectional serial communication 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 Si9241AEY is built on the Vishay Siliconix BiC/DMOS process. An epitaxial layer prevents latchup. The RX output is capable of driving CMOS or 1 x LSTTL load. The Si9241AEY is available in a space efficient 8-pin SO package. It operates reliably over the automotive temperature range (- 40 to 125 °C). The Si9241AEY is available in both standard and lead (Pb)-free packages. FEATURES • Operating Power Supply Range 6 V  VBAT  36 V • Reverse Battery Protection Down to VBAT - 24 V • Standby Mode With Very Low Current Consumption IBAT(SB) = 1 µA at VDD = 0.5 V • Low Quiescent Current in OFF Condition IBAT = 120 µA and IDD  10 A • ISO 9141 Compatible • Overtemperature Shutdown Function For K Output • Defined K Output OFF for Open GND • Defined Receive Output Status for Open K Input • Defined K Output OFF for TX Input Open • Open Drain Fault Output • 2 kV ESD • Typical Transmit Speeds of 200 kBaud PIN CONFIGURATION AND FUNCTIONAL BLOCK DIAGRAM VDD VBAT VBAT RX VDD + - 2 K CS TX FAULT Fault Detector GND Document Number: 70787 S11-0975-Rev. F, 16-May-11 www.vishay.com 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?91000 Si9241A Vishay Siliconix OUTPUT TABLE AND STATE DIAGRAMS Over Temp Power On A=1 Over Temp . CS Short Circuit Power On B=1 B=0 A=0 INPUTS CS 0 0 X 0 1 1 TX 0 1 X X X X STATE VARIABLE A 1 1 0 1 1 1 B 1 1 1 0 1 1 0 1 OUTPUT TABLE RX K 0 1 HiZ HiZ 0 1 FAULT 1 1 0 0 1 1 Over Temp Short Circuit Receive Mode Comments K K 0 1 CS Note: Over Temp is an internal condition, not meant to be a logic signal. X = "1" or "0" HiZ = High Impedance State ABSOLUTE MAXIMUM RATINGS Parameter Voltages Referenced to Ground Voltage On VBAT Voltage K Voltage Difference V(VBAT, K) Voltage or Max. Current On Any Pin (Except VBAT , K) Voltage on VDD K Pin Only, Short Circuit Duration (to VBAT or GND) Operating Temperature (TA) Junction and Storage Temperature Thermal Impedance (JA) - 24 to 45 - 16 to (VBAT + 1) 55 - 0.3 to (VDD + 0.3 V) or 10 7 Continuous - 40 to 125 - 55 to 150 125 °C °C/W mA V V Limit Unit 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 Voltages Referenced to Ground VDD VBAT K Digital Inputs 4.5 to 5.5 6 to 36 6 to 36 0 to VDD V Limit Unit www.vishay.com 2 Document Number: 70787 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 Si9241A Vishay Siliconix SPECIFICATIONS Test Conditions Unless Specified VDD = 4.5 V to 5.5 V VBAT = 6 V to 36 V Limits - 40 to 125 °C Temp.a Full Full Full VDD = 5.5 V, TX or CS = 1.5 V, 3.5 V RL = 510  ± 5 %, VBAT = 6 to 18 K Output Low Voltage VOLK RL = 1 k ± 5 %, VBAT = 16 to 36 RL = 510  ± 5 %, VBAT = 4.5 K Output High Voltage K Rise, Fall Times K Output Sink Resistance K Output Capacitanced Receiver K Input Low Voltage K Input High Voltage K Input Hysteresisc, d K Input Currents RX Output Low Voltage RX Pull-up Resistance VOHK tr, tf Rsi CO VILK VIHK VHYS IIHK VOLR RRX td(on) RL = 510  ± 5 %, VBAT = 6 V to 18 V CL = 10 nF, See Test Circuit RL = 1 k ± 5 %, VBAT = 16 V to 36 V CL = 4.7 nF, See Test Circuit RL = 510  ± 5 %, VBAT = 6 V to 18 V CL = 10 nF, See Test Circuit RL = 1 k ± 5 %, VBAT = 16 V to 36 V CL = 4.7 nF, See Test Circuit CS = TX = 0 V, VBAT  16 V CS = High, VBAT  12 V, TX = VDD  0.5 V, VBAT  12 V VDD  5.5 V, TX = 0 V CS = High, VBAT  12 V, TX = High RL = 510 , CL = 10 nF 6 V < VBAT < 16 V, CRX = 20 pF 6 V < VBAT < 16 V, RK = 510 , CK  1.3 nF CS = TX = 0, K = VBAT, IOLF = 1 mA Temperature Rising f Parameter Transmitter and Logic Levels CS, TX Input Low Voltage CS, TX Input High Voltage TX Input Capacitanced CS, TX Input Pull-up Resistance K Transmit Symbol VILT VIHT CINT RTX, Min.b Typ.c Max.b 1.5 Unit 3.5 10 10 20 40 0.2 VBAT 0.2 VBAT 1.2 0.95 VBAT 0.95 VBAT 9.6 110 20 0.35 VBAT 0.65 VBAT 0.05 VBAT 20 0.4 5 3 3 3 3 20 10 10 V pF k Full Full Full Full Full Full Full Full Full Full Full Full V RL = 510  ± 5 %, VBAT = 4.5 to 18 RL = 1 k ± 5 %, VBAT = 16 to 36 See Test Circuit CS = 0 V, TX = 0 V µs  pF V µA V k VIHK = VBAT CS = 4 VILK = 0.35 VBAT IOLR = 1 mA Full Full Full Full Full Full Full RX Turn On Delay µs 10 10 RX Turn Off Delay td(off) Supplies Bat Supply Current On Bat Supply Current Off Bat Supply Current Standby Logic Supply Current On Logic Supply Current Off Miscellaneous TX Transmit Baud Rate RX Receive Baud Rate Transmission Frequency Fault Output Low Voltage CS Minimum Pulse Widthd, e Over Temperature Shutdownd c c IBAT(on) IBAT(off) IBAT(SB) IDD(on) IDD(off) BRT BRR fK-RXK VOLF tcs TSHUT THYST Full Full Full Full Full Full Full Full Full Full 1 160 50 10.4 1.2 120