SI9243A Datasheet, PDF (1/5 Pages) Vishay Siliconix – Single-Ended Bus Transceiver

Single-Ended Bus Transceiver
Si9243AEY
Vishay Siliconix
FEATURES
D Operating Power Supply Range 6 V v V_BAT v 36 V
D Reverse Battery Protection Down to V_BAT w –24 V
D Standby Mode With Very Low Current Consumption
I_BAT(SB) = 1 mA @ V_DD = 0.5 V
D Low Quiescent Current in OFF Condition
I_BAT = 120 mA and I_DD v 10 mA
D ISO 9141 Compatible
D Overtemperature Shutdown Function For K Output
D Defined K Output OFF for Open GND
D Defined Receive Output Status for Open L or K Inputs
D Defined K Output OFF for TX Input Open
D 2-kV ESD
D 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 V_BAT. The transceiver pin is protected and can be
driven beyond the V_BAT voltage.
The RX output is capable of driving CMOS or 1 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 to
125_C).
PIN CONFIGURATION AND FUNCTIONAL BLOCK DIAGRAM
GND V_DD V_BAT
V_DD
RX_L
V_DD
+
L
L
–
RX_K
+
K
K
–
+
V_DD
V_BAT/2
–
K
Logic and Fault Detect Circuitry
(See State Diagram and Truth Table)
TX
Document Number: 70788
S-02936—Rev. D, 22-Jan-01
www.vishay.com
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