NCV7351, NCV7351F
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8
Table 6. CHARACTERISTICS
Symbol UnitMaxTypMinConditionsParameter
BUS LINES (Pins CANH and CANL)
V
o(reces)
(norm)
Recessive bus voltage on pins CANH
and CANL
V
TxD
= V
IO
; no load
normal mode
2.0 2.5 3.0 V
I
o(reces)
(CANH)
Recessive output current at pin CANH −30 V < V
CANH
< +35 V;
0 V < V
CC
< 5.5 V
−2.5 − +2.5 mA
I
o(reces)
(CANL)
Recessive output current at pin CANL −30 V < V
CANL
< +35 V;
0 V < V
CC
< 5.5 V
−2.5 − +2.5 mA
I
LI(CANH)
Input leakage current to pin CANH
0 W < R(V
CC
to GND) < 1 MW
V
CANL
= V
CANH
= 5 V
−10 0 10
mA
I
LI(CANL)
Input leakage current to pin CANL −10 0 10
mA
V
o(dom)
(CANH)
Dominant output voltage at pin CANH V
TxD
= 0 V;
V
CC
= 4.75 V to 5.25 V
3.0 3.6 4.25 V
V
o(dom)
(CANL)
Dominant output voltage at pin CANL V
TxD
= 0 V;
V
CC
= 4.75 V to 5.25 V
0.5 1.4 1.75 V
V
o(dif)
(bus_dom)
Differential bus output voltage
(V
CANH
− V
CANL
)
V
TxD
= 0 V; dominant;
V
CC
= 4.75 V to 5.25 V
45 W < R
LT
< 65 W
1.5 2.25 3.0 V
V
o(dif)
(bus_rec)
Differential bus output voltage
(V
CANH
− V
CANL
)
V
TxD
= V
IO
; recessive;
no load
−120 0 +50 mV
V
o(sym)
(bus_dom)
Bus output voltage symmetry
V
CANH
+ V
CANL
V
TxD
= 0 V
V
CC
= 4.75 V to 5.25 V
0.9 − 1.1 V
CC
I
o(sc)
(CANH)
Short circuit output current at pin CANH V
CANH
= 0 V; V
TxD
= 0 V −90 −70 −40 mA
I
o(sc)
(CANL)
Short circuit output current at pin CANL V
CANL
= 36 V; V
TxD
= 0 V 40 70 100 mA
V
i(dif)
(th)
Differential receiver threshold voltage −12 V < V
CANL
< +12 V;
−12 V < V
CANH
< +12 V;
0.5 0.7 0.9 V
V
ihcm(dif)
(th)
Differential receiver threshold voltage for
high common−mode
−30 V < V
CANL
< +35 V;
−30 V < V
CANH
< +35 V;
0.40 0.7 1.0 V
R
i(cm)
(CANH)
Common−mode input resistance at pin
CANH
15 26 37
kW
R
i(cm)
(CANL)
Common−mode input resistance at pin
CANL
15 26 37
kW
R
i(cm)
(m)
Matching between pin CANH and pin
CANL common mode input resistance
V
CANH
= V
CANL
−0.8 0 +0.8 %
R
i(dif)
Differential input resistance 25 50 75
kW
C
i(CANH)
Input capacitance at pin CANH V
TxD
= V
IO
; not tested − 7.5 20 pF
C
i(CANL)
Input capacitance at pin CANL V
TxD
= V
IO
; not tested − 7.5 20 pF
C
i(dif)
Differential input capacitance V
TxD
= V
IO
; not tested − 3.75 10 pF
THERMAL SHUTDOWN
T
J(sd)
Shutdown junction temperature Junction temperature rising 160 180 200 °C
TIMING CHARACTERISTICS (see Figures 5, 6 and 7)
t
d(TxD−BUSon)
Delay TxD to bus active C
i
= 100 pF between CANH to
CANL
− 75 − ns
t
d(TxD−BUSoff)
Delay TxD to bus inactive C
i
= 100 pF between CANH to
CANL
− 65 − ns
t
d(BUSon−RxD)
Delay bus active to RxD C
rxd
= 15 pF − 70 − ns
t
d(BUSoff−RxD)
Delay bus inactive to RxD C
rxd
= 15 pF − 70 − ns
t
pd
Propagation delay TxD to RxD (both
edges)
C
i
= 100 pF between CANH to
CANL, C
rxd
= 15 pF
45 140 245 ns
12.EN pin Only available on NCV7351−E version
13.Not tested in production. Guaranteed by design and prototype evaluation.
14.Only applicable for version NCV7351F
