TCAN1042-Q1_17 Datasheet, PDF (21/40 Pages) Texas Instruments – Automotive Fault Protected CAN Transceiver with CAN FD

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TCAN1042-Q1, TCAN1042V-Q1, TCAN1042H-Q1
TCAN1042HV-Q1, TCAN1042G-Q1, TCAN1042GV-Q1
TCAN1042HG-Q1, TCAN1042HGV-Q1
SLLSES9B – FEBRUARY 2016 – REVISED MAY 2017
9.4.2 Normal Mode
Select the Normal mode of device operation by setting STB terminal low. The CAN driver and receiver are fully
operational and CAN communication is bi-directional. The driver translates a digital input on TXD to a differential
output on CANH and CANL. The receiver translates the differential signal from CANH and CANL to a digital
output on RXD.
9.4.3 Standby Mode
Activate low power Standby mode by setting STB terminal high. In this mode the bus transmitter will not send
data nor will the normal mode receiver accept data as the bus lines are biased to ground minimizing the system
supply current. Only the low power receiver will be actively monitoring the bus for activity. RXD indicates a valid
wake up event after a wake-up pattern (WUP) has been detected on the Bus. The low power receiver is powered
using only the V_IO pin. This allows V_CC to be removed reducing power consumption further.
The bus lines are biased to ground in Standby mode to minimize the required system supply current. The low
power receiver is supplied by V_IO and is capable of detecting CAN bus activity even if V_IO is the only supply
voltage available to the transceiver.
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Product Folder Links: TCAN1042-Q1 TCAN1042V-Q1 TCAN1042H-Q1 TCAN1042HV-Q1 TCAN1042G-Q1
TCAN1042GV-Q1 TCAN1042HG-Q1 TCAN1042HGV-Q1