SN65HVDA540 Datasheet, PDF (9/19 Pages) Texas Instruments – 5-V CAN TRANSCEIVER WITH I/O LEVEL SHIFTING AND LOW-POWER MODE SUPPLY OPTIMIZATION

SN65HVDA540
SN65HVDA541
www.ti.com ........................................................................................................................................................................................................ SLLS981 – MAY 2009
FUNCTION TABLES
DRIVER
TXD ⁽¹⁾
L
H
Open
X
INPUTS
STB ⁽¹⁾
L
L
L
H or Open
CANH ⁽¹⁾
H
Z
Z
Y
OUTPUTS
CANL ⁽¹⁾
L
Z
Z
Y
(1) H = high level, L = low level, X = irrelevant, ? = indeterminate, Y = weak pull down to GND, Z = high impedance
BUS STATE
DOMINANT
RECESSIVE
RECESSIVE
RECESSIVE
RECEIVER
DIFFERENTIAL INPUTS
V_ID = V(CANH) – V(CANL)
X
V_ID ≥ 1.15 V
0.4 V < V_ID < 1.15 V
V_ID ≤ 0.4 V
V_ID ≥ 0.9 V
0.5 V < V_ID < 0.9 V
V_ID ≤ 0.5 V
Open
STB ⁽¹⁾
H or Open
L
L
L
X
OUTPUT RXD⁽¹⁾
SN65HVDA540 ⁽²⁾
H
SN65HVDA541 ⁽³⁾
L
?
H
L
?
H
H
BUS STATE
X
DOMINANT
?
RECESSIVE
DOMINANT
?
RECESSIVE
RECESSIVE
(1) H = high level, L = low level, X = irrelevant, ? = indeterminate, Y = weak pull down to GND, Z = high impedance
(2) While STB is high (standby mode) the RXD output of the SN65HVDA540 is always high (recessive) because it has no wake-up receiver
(3) While STB is high (standby mode) the RXD output of the SN65HVDA541 functions according to the levels above and the wake-up
conditions shown in Figure 1 and Figure 2.
PARAMETER MEASUREMENT INFORMATION
IO(CANH)
I _I ^TXD
VOD
VO _(CANH)
RL
VI ^{STB II(S)}
+
VI(S)
_
IO(CANL)
V _O(CANL)
VOC
VO(CANH) ₊ VO(CANL)
2
Figure 3. Driver Voltage, Current, and Test Definition
Dominant
9 3.5 V V_O(CANH)
Recessive
9 2.5 V
9 1.5 V VO(CANL)
Figure 4. Bus Logic-State Voltage Definitions
Copyright © 2009, Texas Instruments Incorporated
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