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
DESCRIPTION
The Si9243AEY 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 RX output is capable of driving CMOS or 1 x LSTTL
load.
The Si9243AEY is built on the Vishay Siliconix BiC/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 °C to
125 °C). The Si9243AEY is available in both standard and
lead (Pb)-free packages.