TCAN1042-Q1 Datasheet, PDF (20/32 Pages) Texas Instruments – Automotive Fault Protected CAN Tranceiver

TCAN1042-Q1, TCAN1042V-Q1, TCAN1042H-Q1
TCAN1042HV-Q1, TCAN1042G-Q1, TCAN1042GV-Q1
TCAN1042HG-Q1, TCAN1042HGV-Q1
SLLSES9 – FEBRUARY 2016
9.4.4 Driver and Receiver Function Tables
Table 5. Driver Function Table
DEVICE
All Devices
INPUTS
STB ^{(1) (2)}
TXD ^{(1) (3)}
L
L
H or Open
H or Open
X
OUTPUTS
CANH ⁽¹⁾
CANL ⁽¹⁾
H
L
Z
Z
Z
Z
DRIVEN BUS
STATE
Dominant
Recessive
Recessive
(1) H = high level, L = low level, X= irrelevant, Z = common mode (recessive) bias to V_CC / 2. See
Figure 13 and Figure 14 for bus state and common mode bias information.
(2) Devices have an internal pull up to V_CC or V_IO on STB terminal. If STB terminal is open the terminal
will be pulled high and the device will be in standby mode.
(3) Devices have an internal pull up to V_CC or V_IO on TXD terminal. If the TXD terminal is open the
terminal will be pulled high and the transmitter will remain in recessive (non-driven) state.
DEVICE MODE
Normal or Silent
Table 6. Receiver Function Table
CAN DIFFERENTIAL INPUTS
V_ID = V_CANH – V_CANL
V_ID ≥ 0.9 V
0.5 V < V_ID < 0.9 V
V_ID ≤ 0.5 V
Open (V_ID ≈ 0 V)
BUS STATE
Dominant
?
Recessive
Open
RXD
TERMINAL ⁽¹⁾
L ⁽²⁾
? ⁽²⁾
H ⁽²⁾
H
(1) H = high level, L = low level, ? = indeterminate.
(2) See Receiver Electrical Characteristics section for input thresholds.
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TCAN1042GV-Q1 TCAN1042HG-Q1 TCAN1042HGV-Q1