AMIS-42670 High-Speed CAN Transceiver
Data Sheet
For Long Networks
8.4 DC and Timing Characteristics
VCC = 4.75 to 5.25V; Tjunc = -40 to +150°C; RLT =60Ω unless specified otherwise.
Table 6: DC and Timing Characteristics
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Unit
Supply (Pin VCC
ICC
)
Supply current
Dominant; VTXD = 0V
Recessive; VTXD = VCC
25
2
45
4
65
8
mA
mA
Transmitter Data Input (Pin TxD)
VIH
VIL
IIH
IIL
High-level input voltage
Output recessive
Output dominant
VTxD = VCC
VTxD = 0V
Not tested
2.0
-0.3
-1
-75
-
-
-
0
-200
5
VCC+0.3
+0.8
+1
-350
10
V
V
µA
µA
pF
Low-level input voltage
High-level input current
Low-level input current
Input capacitance
Ci
Mode Select (Pin S)
VIH
VIL
IIH
High-level input voltage
Low-level input voltage
High-level input current
Low-level input current
Silent mode
High-speed mode
VS =2V
2.0
-0.3
20
-
-
30
30
VCC+0.3
+0.8
50
V
V
µA
µA
IIL
VS =0.8V
15
45
Receiver Data Output (Pin RxD)
VOH
High-level output voltage
IRXD = - 10mA
0.6 x VCC
0.75 x
VCC
0.25
V
V
V
V
VOL
Low-level output voltage
IRXD = 6mA
0.45
Reference Voltage Output (Pin VREF
VREF
)
Reference output voltage
-50µA < IVREF < +50µA
0.45 x VCC
0.40 x VCC
0.50 x
VCC
0.50 x
VCC
0.55 x VCC
0.60 x VCC
VREF_CM
Reference output voltage for full common -35V <VCANH< +35V;
mode range
-35V <VCANL< +35V
Bus Lines (Pins CANH and CANL)
Vo(reces)(CANH)
Vo(reces)(CANL)
Io(reces) (CANH)
Recessive bus voltage at pin CANH
Recessive bus voltage at pin CANL
Recessive output current at pin CANH
VTxD = VCC; no load
VTxD = VCC; no load
-35V <VCANH< +35V;
0V <VCC < 5.25V
-35V <VCANL < +35V;
0V <VCC < 5.25V
VTxD = 0V
2.0
2.0
-2.5
2.5
2.5
-
3.0
3.0
+2.5
V
V
mA
Io(reces) (CANL)
Recessive output current at pin CANL
-2.5
-
+2.5
mA
Vo(dom) (CANH)
Vo(dom) (CANL)
Vi(dif) (bus)
Dominant output voltage at pin CANH
Dominant output voltage at pin CANL
Differential bus input voltage
3.0
0. 5
1.5
3.6
1.4
2.25
4.25
1.75
3.0
V
V
V
VTxD = 0V
VTxD = 0V; dominant;
(VCANH - VCANL
)
42.5 Ω < RLT < 60 Ω
V
TxD =VCC; recessive;
-120
0
+50
mV
No load
Io(sc) (CANH)
Io(sc) (CANL)
Vi(dif)(th)
Short circuit output current at pin CANH
Short circuit output current at pin CANL
Differential receiver threshold voltage
VCANH = 0V; VTxD = 0V
VCANL = 36V; VTxD = 0V
-5V <VCANL < +10V;
-5V <VCANH < +10V;
See Figure 5
-45
45
0.5
-70
70
0.7
-95
120
0.9
mA
mA
V
Vihcm(dif) (th)
Differential receiver threshold voltage for -35V <VCANL < +35V;
0.25
50
0.7
70
1.05
100
V
high common-mode
-35V <VCANH < +35V;
See Figure 5
Vi(dif) (hys)
Differential receiver input voltage hysteresis
-5V <VCANL < +10V;
-5V <VCANH < +10V;
See Figure 5
mV
Ri(cm)(CANH)
Ri(cm) (CANL)
Ri(cm)(m)
Common-mode input resistance at pin
CANH
Common-mode input resistance at pin
CANL
Matching between pin CANH and pin CANL VCANH =VCANL
common-mode input resistance
15
15
-3
25
25
0
37
37
+3
KΩ
KΩ
%
Ri(dif)
Ri(cm)(m)
Differential input resistance
Matching between pin CANH and pin CANL VCANH =VCANL
common-mode input resistance
25
-3
50
0
75
+3
KΩ
%
Ri(dif)
Differential input resistance
25
50
75
KΩ
AMI Semiconductor – October 07, Rev. 1.0
6
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