Datasheet
FUNCTION TABLES
PARAMETER MEASUREMENT INFORMATION
I
O(CANH)
V
OD
V
I
TXD
O(CANH)
V
O
(CANL)
V
I
O(CANL)
R
L
OC
V
O(CANH)
V
O(CANL)
V
+
2
I
I(S)
V
I(S)
+
_
STB
I
I
3.5 V
2.5 V
1.5 V
V
O(CANH)
V
O(CANL)
Dominant
Recessive
SN65HVDA540
SN65HVDA541
www.ti.com
........................................................................................................................................................................................................ SLLS981 – MAY 2009
DRIVER
INPUTS OUTPUTS
BUS STATE
TXD
(1)
STB
(1)
CANH
(1)
CANL
(1)
L L H L DOMINANT
H L Z Z RECESSIVE
Open L Z Z RECESSIVE
X H or Open Y Y RECESSIVE
(1) H = high level, L = low level, X = irrelevant, ? = indeterminate, Y = weak pull down to GND, Z = high impedance
RECEIVER
DIFFERENTIAL INPUTS
STB
(1)
OUTPUT RXD
(1)
BUS STATE
V
ID
= V(CANH) – V(CANL)
X H or Open SN65HVDA540
(2)
H X
V
ID
≥ 1.15 V SN65HVDA541
(3)
L DOMINANT
0.4 V < V
ID
< 1.15 V ? ?
V
ID
≤ 0.4 V H RECESSIVE
V
ID
≥ 0.9 V L L DOMINANT
0.5 V < V
ID
< 0.9 V L ? ?
V
ID
≤ 0.5 V L H RECESSIVE
Open X H 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 .
Figure 3. Driver Voltage, Current, and Test Definition
Figure 4. Bus Logic-State Voltage Definitions
Copyright © 2009, Texas Instruments Incorporated Submit Documentation Feedback 9
Product Folder Link(s): SN65HVDA540 SN65HVDA541