Datasheet

CANH
CANL
RXD
Thewaveformsoftheappliedtransientsareinaccordance
withISO 7637 part 1, testpulses 1, 2, 3a, and 3b.
TXD
1 nF
1 nF
15 pF
GND2
GND1
V
I
+
_
RXD
CANH
CANL
GND 2
GND 1
V
I
(SEENOTE A)
1 .5 V
I
O
V
O
CL = 15 pF
20 %
(SEENOTEB)
±
V
I
V
O
2 V
2.4 V
3.5 V
V
OH
t
f
t
r
t
pHL
1.5 V
V
OL
90 %
10 %
0.3 Vcc 1
0.7 Vcc 1
t
pLH
ISO1050
www.ti.com SLLS983H –JUNE 2009–REVISED JUNE 2013
PARAMETER MEASUREMENT INFORMATION (continued)
A. The input pulse is supplied by a generator having the following characteristics: PRR ≤ 125 kHz, 50% duty cycle,
t
r
≤ 6 ns, t
f
≤ 6 ns, Z
O
= 50Ω.
B. C
L
includes instrumentation and fixture capacitance within ±20%.
Figure 9. Receiver Test Circuit and Voltage Waveforms
Table 4. Differential Input Voltage Threshold Test
INPUT OUTPUT
V
CANH
V
CANL
|V
ID
| R
–11.1 V –12 V 900 mV L
12 V 11.1 V 900 mV L
V
OL
–6 V –12 V 6 V L
12 V 6 V 6 V L
–11.5 V –12 V 500 mV H
12 V 11.5 V 500 mV H
–12 V –6 V –6 V H V
OH
6 V 12 V –6 V H
Open Open X H
Figure 10. Transient Over-Voltage Test Circuit
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