SI9241AEY-T1

End of Life. Last Available Purchase Date is 31-Dec-2014 Si9241A Vishay Siliconix Single-Ended Bus Transceiver DESCRIPTION FEATURES The Si9241AEY is a monolithic bus transceiver designed to provide bidirectional serial communication in automotive diagnostic applications. • 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 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. 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 End of Life. Last Available Purchase Date is 31-Dec-2014 Si9241A Vishay Siliconix OUTPUT TABLE AND STATE DIAGRAMS INPUTS Over Temp Power On A=1 A=0 CS 0 Over Temp . CS Short Circuit Power On B=1 B=0 CS Note: Over Temp is an internal condition, not meant to be a logic signal. STATE VARIABLE OUTPUT TABLE TX A B RX K FAULT 0 1 1 0 0 1 Comments 0 1 1 1 1 1 1 X X 0 1 K HiZ 0 Over Temp 0 X 1 0 K HiZ 0 Short Circuit X 1 1 0 0 1 Receive Mode X 1 1 1 1 1 1 1 X = "1" or "0" HiZ = High Impedance State ABSOLUTE MAXIMUM RATINGS Parameter Limit Unit 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) - 24 to 45 - 16 to (VBAT + 1) 55 - 0.3 to (VDD + 0.3 V) or 10 mA 7 V Continuous Operating Temperature (TA) - 40 to 125 Junction and Storage Temperature - 55 to 150 Thermal Impedance (JA) V 125 °C °C/W 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 VDD 4.5 to 5.5 VBAT 6 to 36 K 6 to 36 Digital Inputs www.vishay.com 2 V 0 to VDD 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 End of Life. Last Available Purchase Date is 31-Dec-2014 Si9241A Vishay Siliconix SPECIFICATIONS Parameter Symbol 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 Transmitter and Logic Levels CS, TX Input Low Voltage VILT Full CS, TX Input High Voltage VIHT Full TX Input Capacitanced CS, TX Input Pull-up Resistance CINT RTX, Min.b Typ.c Max.b Unit 1.5 V 3.5 Full 10 pF 40 k VDD = 5.5 V, TX or CS = 1.5 V, 3.5 V Full RL = 510  ± 5 %, VBAT = 6 to 18 Full 0.2 VBAT RL = 1 k ± 5 %, VBAT = 16 to 36 Full 0.2 VBAT RL = 510  ± 5 %, VBAT = 4.5 Full RL = 510  ± 5 %, VBAT = 4.5 to 18 Full 0.95 VBAT RL = 1 k ± 5 %, VBAT = 16 to 36 Full 0.95 VBAT See Test Circuit 10 20 K Transmit VOLK K Output Low Voltage VOHK K Output High Voltage 1.2 V Full 9.6 µs Full 110  Full 20 pF K Rise, Fall Times tr, tf K Output Sink Resistance Rsi K Output Capacitanced Receiver K Input Low Voltage CO VILK Full K Input High Voltage VIHK Full K Input Hysteresisc, d K Input Currents VHYS Full CS = 0 V, TX = 0 V IIHK RX Output Low Voltage VOLR RX Pull-up Resistance RRX td(on) RX Turn On Delay td(off) RX Turn Off Delay Supplies Bat Supply Current On IBAT(on) Bat Supply Current Off IBAT(off) Bat Supply Current Standby IBAT(SB) CS = 4 VIHK = VBAT Full 20 µA Full 0.4 V 20 k Full Full 3 10 RL = 1 k ± 5 %, VBAT = 16 V to 36 V CL = 4.7 nF, See Test Circuit Full 3 10 RL = 510  ± 5 %, VBAT = 6 V to 18 V CL = 10 nF, See Test Circuit Full 3 10 RL = 1 k ± 5 %, VBAT = 16 V to 36 V CL = 4.7 nF, See Test Circuit Full 3 10 CS = TX = 0 V, VBAT  16 V CS = High, VBAT  12 V, TX = VDD  0.5 V, VBAT  12 V Highf µs Full 1.2 3 Full 120 220 Full