NCV7349 [ONSEMI]

High Speed Low Power CAN Transceiver;
NCV7349
型号: NCV7349
厂家: ONSEMI    ONSEMI
描述:

High Speed Low Power CAN Transceiver

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中文:  中文翻译
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NCV7349  
High Speed Low Power CAN  
Transceiver  
Description  
The NCV7349 CAN transceiver is the interface between  
a controller area network (CAN) protocol controller and the physical  
bus. The transceiver provides differential transmit capability to the bus  
and differential receive capability to the CAN controller.  
The NCV7349 is a new addition to the CAN high−speed transceiver  
family complementing NCV734x CAN family and previous generations  
of CAN transceivers such as AMIS42665, AMIS3066x, etc.  
Due to the wide common−mode voltage range of the receiver inputs  
and other design features, the NCV7349 is able to reach outstanding  
levels of electromagnetic susceptibility (EMS). Similarly, very low  
electromagnetic emission (EME) is achieved by the excellent  
matching of the output signals.  
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MARKING  
DIAGRAM  
8
8
NV7349−x  
ALYW G  
G
1
SOIC−8  
CASE 751AZ  
1
Features  
NV7349−x = Specific Device Code  
x = 0 or 3  
Compatible with the ISO 11898−5 Standard  
High Speed (up to 1 Mbps)  
A
L
= Assembly Location  
= Wafer Lot  
Y
W
G
= Year  
= Work Week  
= Pb−Free Package  
V Pin on NCV7349−3 Version Allowing Direct Interfacing with  
IO  
3 V to 5 V Microcontrollers  
Very Low Current Standby Mode with Wake−up via the Bus  
Low Electromagnetic Emission (EME) and Extremely High  
Electromagnetic Immunity  
(Note: Microdot may be in either location)  
PIN ASSIGNMENT  
Very Low EME without Common−mode (CM) Choke  
No Disturbance of the Bus Lines with an Un−powered Node  
Transmit Data (TxD) Dominant Time−out Function  
Under All Supply Conditions the Chip Behaves Predictably  
Very High ESD Robustness of Bus Pins, >10 kV System ESD Pulses  
Thermal Protection  
Bus Pins Short Circuit Proof to Supply Voltage and Ground  
Bus Pins Protected Against Transients in an Automotive  
These are Pb−Free Devices  
8
7
6
5
1
2
3
4
TxD  
STB  
CANH  
CANL  
NC  
GND  
V
CC  
RxD  
NCV7349D10R2G  
(Top View)  
Quality  
NCV Prefix for Automotive and Other Applications Requiring  
Unique Site and Control Change Requirements; AEC−Q100  
Qualified and PPAP Capable  
8
7
6
5
1
2
3
4
TxD  
STB  
GND  
CANH  
CANL  
Typical Applications  
Automotive  
Industrial Networks  
V
CC  
V
IO  
RxD  
NCV7349D13R2G  
(Top View)  
ORDERING INFORMATION  
See detailed ordering and shipping information in the package  
dimensions section on page 10 of this data sheet.  
© Semiconductor Components Industries, LLC, 2014  
1
Publication Order Number:  
December, 2014 − Rev. 1  
NCV7349/D  
NCV7349  
Table 1. KEY TECHNICAL CHARACTERISTICS AND OPERATING RANGES  
Symbol  
Parameter  
Power supply voltage  
Conditions  
Min  
Max  
Unit  
V
CC  
(Note 1)  
4.75  
(4.5)  
5.25  
(5.5)  
V
V
Undervoltage detection voltage on pin Vcc  
DC voltage at pin CANH  
2
4
V
V
V
V
UV  
V
CANH  
0 < V < 5.5 V; no time limit  
−50  
−50  
+50  
+50  
+58  
CC  
V
CANL  
DC voltage at pin CANL  
0 < V < 5.5 V; no time limit  
CC  
V
DC voltage at pin CANH and CANL during load  
dump condition  
0 < V < 5.5 V, less than one second  
CANH,Lmax  
CC  
V
Electrostatic discharge voltage  
IEC 61000−4−2 at pins CANH and CANL  
−15  
1.5  
15  
3
kV  
V
ESD  
V
Differential bus output voltage in dominant state  
Input common−mode range for comparator  
45 W < R < 65 W  
O(dif)(bus_dom)  
LT  
CM−range  
Guaranteed differential receiver thresh-  
old and leakage current  
−35  
+35  
V
C
Load capacitance on IC outputs  
Propagation delay (NCV7349−0 version)  
Propagation delay (NCV7349−3 version)  
Junction temperature  
15  
pF  
ns  
ns  
°C  
load  
pd0  
pd3  
t
t
See Figure 7  
See Figure 7  
245  
250  
150  
T
−40  
J
Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond  
the Recommended Operating Ranges limits may affect device reliability.  
1. In the range of 4.5 V to 4.75 V and from 5.25 V to 5.5 V the chip is fully functional; some parameters may be outside of the specification.  
BLOCK DIAGRAM  
V
CC  
V
IO  
(*)  
3
5
V
V
NCV7349  
IO  
7
Thermal  
CANH  
shutdown  
1
8
TxD  
STB  
Timer  
IO  
6
Mode &  
Wake−up  
control  
Driver control  
CANL  
4
2
Wake−up  
Filter  
RxD  
COMP  
COMP  
GND  
*On NCV7349−0 version pin 5 is not connected. V supply is provided by V  
.
IO  
CC  
Figure 1. Block Diagram  
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2
 
NCV7349  
TYPICAL APPLICATION  
VBAT  
OUT  
IN  
5 V − reg  
V
CC  
V
CC  
NC  
5
3
R
= 60 W  
LT  
STB  
TxD  
RxD  
7
8
1
4
CANH  
CAN  
BUS  
Micro−  
controller  
CANL  
6
R
= 60 W  
LT  
2
GND  
GND  
Figure 2. Application Diagram, NCV7349−0  
VBAT  
OUT  
IN  
IN  
5 V − reg  
OUT  
3 V − reg  
V
IO  
V
CC  
5
3
R
= 60 W  
LT  
STB  
TxD  
RxD  
7
8
1
4
CANH  
CAN  
BUS  
Micro−  
controller  
CANL  
6
R
= 60 W  
LT  
2
GND  
GND  
Figure 3. Application Diagram, NCV7349−3  
Table 2. PIN FUNCTION DESCRIPTION  
Pin  
1
Name  
TxD  
Description  
Transmit data input; low input Ù Driving dominant on bus; internal pull−up current  
2
GND  
Ground  
3
V
CC  
Supply voltage  
4
RxD  
NC  
Receive data output; bus in dominant Ù low output  
5
5
Not connected. On NCV7349−0 only.  
V
IO  
Input / Output pins supply voltage. On NCV7349−3 only  
6
7
8
CANL  
CANH  
STB  
Low−level CAN bus line (low in dominant mode)  
High−level CAN bus line (high in dominant mode)  
Standby mode control input; internal pull−up current  
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3
 
NCV7349  
FUNCTIONAL DESCRIPTION  
Standby Mode  
NCV7349 has two versions which differ from each other  
In standby mode both the transmitter and receiver are  
disabled and a very low−power differential receiver  
monitors the bus lines for CAN bus activity. The bus lines  
are terminated to ground and supply current is reduced to a  
minimum, typically 10 mA. When a wake−up request is  
detected by the low−power differential receiver, the signal  
is first filtered and then verified as a valid wake signal after  
only by function of pin 5.  
NCV7349−0: Pin 5 is not connected. (see Figure 2)  
NCV7349−3: Pin 5 is V pin, which is supply pin for  
transceiver digital inputs/output (supplying pins TxD, RxD,  
IO  
STB) The V pin should be connected to microcontroller  
IO  
supply pin. By using V  
supply pin shared with  
IO  
microcontroller the I/O levels between microcontroller and  
transceiver are properly adjusted. This adjustment allows in  
applications with microcontroller supply down to 3 V to  
easy communicate with the transceiver. (See Figure 3)  
a time period of t  
, the RxD pin is driven low by the  
wake  
transceiver to inform the controller of the wake−up request.  
VIO Supply pin  
The V pin available only on NCV7349−3 version  
should be connected to microcontroller supply pin. By using  
IO  
Operating Modes  
NCV7349 provides two modes of operation as illustrated  
in Table 3. These modes are selectable through pin STB.  
V
supply pin shared with microcontroller the I/O levels  
IO  
between microcontroller and transceiver are properly  
adjusted. See Figure 3. Pin V on NCV7349−3 does not  
IO  
Table 3. OPERATING MODES  
provide the internal supply voltage for low−power  
differential receiver of the transceiver. Detection of  
wake−up request is not possible when there is no supply  
Pin RxD  
Pin  
STB  
Low  
High  
Low  
High  
Mode  
Normal  
Standby  
voltage on pin V  
.
Bus dominant  
Bus recessive  
CC  
Wake−up request  
detected  
No wake−up  
request detected  
Wake−up  
When a valid wake−up (dominant state longer than t  
)
wake  
is received during the standby mode the RxD pin is driven  
low. The wake−up detection is not latched: RxD returns to  
Normal Mode  
In the normal mode, the transceiver is able to  
communicate via the bus lines. The signals are transmitted  
and received to the CAN controller via the pins TxD and  
RxD. The slopes on the bus lines outputs are optimized to  
give low EME.  
High state after t  
when the bus signal is released back  
dwakedr  
to recessive – see Figure 4.  
>t  
Wake  
<t  
Wake  
CANH  
CANL  
STB  
RxD1  
t
dwakedr  
t
dwakerd  
t
Wake(RxD)  
normal  
standby  
time  
Figure 4. NCV7349 Wake−up Behavior  
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4
 
NCV7349  
Over−temperature Detection  
Fail Safe Features  
A thermal protection circuit protects the IC from damage  
by switching off the transmitter if the junction temperature  
exceeds a value of approximately 170°C. Because the  
transmitter dissipates most of the power, the power  
dissipation and temperature of the IC is reduced. All other  
IC functions continue to operate. The transmitter off−state  
resets when the temperature decreases below the shutdown  
threshold and pin TxD goes high. The thermal protection  
circuit is particularly needed when a bus line short circuits.  
A current−limiting circuit protects the transmitter output  
stage from damage caused by accidental short circuit to  
either positive or negative supply voltage, although power  
dissipation increases during this fault condition.  
Undervoltage on V pin prevents the chip sending data  
CC  
on the bus when there is not enough V supply voltage.  
CC  
After supply is recovered TxD pin must be first released to  
high to allow sending dominant bits again. Recovery time  
from undervoltage detection is equal to t  
time.  
d(stb−nm)  
V
supply dropping below V  
undervoltage  
IO  
UVDVIO  
TxD Dominant Time−out Function  
detection level will cause the transmitter to disengage from  
A TxD dominant time−out timer circuit prevents the bus  
lines being driven to a permanent dominant state (blocking  
all network communication) if pin TxD is forced  
permanently low by a hardware and/or software application  
failure. The timer is triggered by a negative edge on pin TxD.  
If the duration of the low−level on pin TxD exceeds the  
the bus (no bus loading) until the V voltage recovers  
(NCV7349−3 version only).  
IO  
The pins CANH and CANL are protected from  
automotive electrical transients (according to ISO 7637; see  
Figure 7). Pins TxD and STB are pulled high internally  
should the input become disconnected. Pins TxD, STB and  
RxD will be floating, preventing reverse supply should the  
internal timer value t  
, the transmitter is disabled,  
dom(TxD)  
driving the bus into a recessive state. The timer is reset by a  
positive edge on pin TxD.  
V
IO  
supply be removed.  
This TxD dominant time−out time (t  
minimum possible bit rate to 15 kbps.  
) defines the  
dom(TxD)  
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5
NCV7349  
ELECTRICAL CHARACTERISTICS  
Definitions  
All voltages are referenced to GND (pin 2). Positive currents flow into the IC. Sinking current means the current is flowing  
into the pin; sourcing current means the current is flowing out of the pin.  
ABSOLUTE MAXIMUM RATINGS  
Table 4. ABSOLUTE MAXIMUM RATINGS  
Symbol  
Parameter  
Conditions  
Min.  
−0.3  
−50  
Max.  
+6  
Unit  
V
V
SUP  
Supply voltage V , V  
CC IO  
V
CANH  
DC voltage at pin CANH  
0 < V < 5.5 V; no time limit  
+50  
+50  
6
V
CC  
V
CANL  
DC voltage at pin CANL  
0 < V < 5.5 V; no time limit  
−50  
V
CC  
V
IO  
DC voltage at pin TxD, RxD, STB  
Electrostatic discharge voltage at all pins  
−0.3  
V
V
esd  
(Note 2)  
(Note 3)  
−6  
500  
6
500  
kV  
V
Electrostatic discharge voltage at CANH and CANL pins  
Transient voltage  
(Note 4)  
(Note 5)  
(Note 6)  
−10  
10  
kV  
V
V
−150  
100  
schaff  
Latch−up  
Static latch−up at all pins  
150  
mA  
°C  
°C  
°C  
T
Storage temperature  
−55  
−40  
−40  
+150  
+125  
+170  
stg  
T
A
Ambient temperature  
T
J
Maximum junction temperature  
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality  
should not be assumed, damage may occur and reliability may be affected.  
2. Standardized human body model electrostatic discharge (ESD) pulses in accordance to EIA−JESD22. Equivalent to discharging a 100 pF  
capacitor through a 1.5 kW resistor.  
3. Standardized charged device model ESD pulses when tested according to ESD−STM5.3.1−1999.  
4. System human body model electrostatic discharge (ESD) pulses. Equivalent to discharging a 150 pF capacitor through a 330 W resistor  
referenced to GND.  
5. Pulses 1, 2a, 3a and 3b according to ISO 7637 part 3. Indicative values based on structural similarity to NCV7340 where results were verified  
by external test house.  
6. Static latch−up immunity: Static latch−up protection level when tested according to EIA/JESD78.  
Table 5. THERMAL CHARACTERISTICS  
Symbol  
Parameter  
Conditions  
Free air  
Value  
125  
75  
Unit  
K/W  
K/W  
R
Thermal Resistance Junction−to−Air, 1S0P PCB (Note 7)  
Thermal Resistance Junction−to−Air, 2S2P PCB (Note 8)  
q
q
JA_1  
JA_2  
R
Free air  
7. Test board according to EIA/JEDEC Standard JESD51−3, signal layer with 10% trace coverage  
8. Test board according to EIA/JEDEC Standard JESD51−7, signal layers with 10% trace coverage  
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6
 
NCV7349  
ELECTRICAL CHARACTERISTICS  
Table 6. CHARACTERISTICS (V = 4.75 V to 5.25 V; V = 2.8 V to 5.5 V (NCV7349−3 only); T = −40 to +150°C; R = 60 W  
CC  
IO  
J
LT  
unless specified otherwise. On chip versions without V pin, reference voltage for all digital inputs and outputs is V instead of V .)  
IO  
CC  
IO  
Symbol  
Parameter  
Conditions  
Min  
Typ  
Max  
Unit  
SUPPLY (Pin V  
)
CC  
I
Supply current  
Dominant; V  
Recessive; V  
= 0 V  
48  
6
75  
10  
mA  
CC  
TxD  
= V  
IO  
TxD  
I
Supply current in standby mode  
T 100°C, (Note 9)  
J
2
10  
3
15  
4
mA  
CCS  
V
Undervoltage detection voltage on V  
pin  
V
UVDVCC  
CC  
SUPPLY (pin V ) on NCV7349−3 Version Only  
IO  
V
Supply voltage on pin V  
2.8  
1
5.5  
V
IO  
IO  
I
Supply current on pin V in standby  
Standby mode  
mA  
IOS  
IO  
mode  
I
Supply current on pin V in normal  
mode  
Dominant; V = 0 V  
TxD  
1
0.2  
mA  
V
IONM  
IO  
Recessive; V  
= V  
TxD  
IO  
For V V  
IO  
CC  
V
Undervoltage detection voltage on V  
pin  
1.3  
2.7  
UVDVIO  
IO  
TRANSMITTER DATA INPUT (Pin TxD)  
V
High−level input voltage  
Low−level input voltage  
High−level input current  
Low−level input current  
Input capacitance  
Output recessive  
Output dominant  
2.0  
−0.3  
−5  
V
V
IH  
IO  
V
+0.8  
+5  
V
IL  
I
IH  
V
TxD  
V
TxD  
= V  
IO  
0
mA  
mA  
pF  
I
IL  
= 0 V  
−350  
−200  
5
C
(Note 9)  
10  
i
TRANSMITTER MODE SELECT (Pin STB)  
V
High−level input voltage  
Low−level input voltage  
High−level input current  
Standby mode  
Normal mode  
2.0  
−0.3  
−5  
V
V
IH  
IO  
V
+0.8  
+5  
V
IL  
I
IH  
V
STB  
V
STB  
V
STB  
= V  
IO  
0
mA  
mA  
mA  
pF  
I
I
Low−level input current, NCV7349−0  
Low−level input current, NCV7349−3  
Input capacitance  
= 0 V  
= 0 V  
−10  
−40  
−4  
−20  
5
−1  
IL0  
IL3  
−4  
C
(Note 9)  
10  
i
RECEIVER DATA OUTPUT (Pin RxD)  
I
High−level output current  
Normal mode, V  
0.4 V  
= V –  
IO  
−1  
−0.4  
6
−0.1  
12  
mA  
OH  
RxD  
I
Low−level output current  
V
RxD  
= 0.4 V  
1.6  
mA  
V
OL  
V
High−level output voltage,  
Standby mode, I  
= −100 mA  
V
− 1.1  
V
− 0.7  
V
− 0.4  
OH  
RxD  
CC  
CC  
CC  
Weaker RxD pin in Standby mode is on  
NCV7349−0 version only  
BUS LINES (Pins CANH and CANL)  
Recessive bus voltage on pins CANH  
V
V
= V ; no load;  
2.0  
−100  
−2.5  
−2.5  
2.5  
3.0  
100  
+2.5  
+2.5  
V
o(reces) (norm)  
TxD  
IO  
and CANL  
normal mode  
V
Recessive bus voltage on pins CANH  
and CANL  
V
TxD  
= V ; no load;  
0
mV  
mA  
mA  
o(reces) (stby)  
IO  
standby mode  
−35 V < V < +35 V;  
CANH  
I
Recessive output current at pin CANH  
o(reces) (CANH)  
0 V < V < 5.25 V  
CC  
I
Recessive output current at pin CANL  
−35 V < V  
< +35 V;  
o(reces) (CANL)  
CANL  
0 V < V < 5.25 V  
CC  
9. Values based on design and characterization, not tested in production  
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NCV7349  
Table 6. CHARACTERISTICS (V = 4.75 V to 5.25 V; V = 2.8 V to 5.5 V (NCV7349−3 only); T = −40 to +150°C; R = 60 W  
CC  
IO  
J
LT  
unless specified otherwise. On chip versions without V pin, reference voltage for all digital inputs and outputs is V instead of V .)  
IO  
CC  
IO  
Symbol  
Parameter  
Conditions  
Min  
Typ  
Max  
Unit  
BUS LINES (Pins CANH and CANL)  
I
Input leakage current to pin CANH  
Input leakage current to pin CANL  
0 W < R(V to GND) < 1 MW  
−10  
−10  
0
0
10  
10  
mA  
mA  
LI(CANH)  
CC  
V
CANL  
= V  
= 5 V  
CANH  
I
0 W < R(V to GND) < 1 MW  
CC  
LI(CANL)  
V
V
V
V
= V  
= 5 V  
CANL  
CANH  
V
Dominant output voltage at pin CANH  
Dominant output voltage at pin CANL  
Differential bus output voltage  
= 0 V  
= 0 V  
3.0  
0.5  
1.5  
3.6  
1.4  
4.25  
1.75  
3.0  
V
V
V
o(dom) (CANH)  
TxD  
TxD  
TxD  
V
o(dom) (CANL)  
V
= 0 V; dominant;  
2.25  
o(dif) (bus_dom)  
(V  
CANH  
− V  
)
45 W < R < 65 W  
CANL  
LT  
V
Differential bus output voltage  
(V − V  
V
TxD  
= V ; recessive; no load  
−120  
0
+50  
mV  
o(dif) (bus_rec)  
IO  
)
CANL  
CANH  
I
Short circuit output current at pin CANH  
Short circuit output current at pin CANL  
V
V
= 0 V; V = 0 V  
TxD  
−100  
45  
−70  
70  
−45  
100  
0.7  
mA  
mA  
V
o(sc) (CANH)  
CANH  
I
= 36 V; V  
= 0 V  
o(sc) (CANL)  
CANL  
TxD  
V
Differential receiver threshold voltage –  
Dominant to Recessive (see Figure 6)  
−2 V < V  
−2 V < V  
< +7 V;  
< +7 V  
0.5  
0.6  
i(dif)R (th)  
CANL  
CANH  
V
Differential receiver threshold voltage –  
Recessive to Dominant (see Figure 6)  
−2 V < V  
−2 V < V  
< +7 V;  
< +7 V  
0.7  
0.4  
0.6  
0.5  
100  
0.4  
15  
0.8  
0.9  
0.8  
1
V
V
i(dif)D (th)  
CANL  
CANH  
V
V
Differential receiver threshold voltage –  
Dominant to Recessive (see Figure 6)  
−35 V < V  
−35 V < V  
< +35 V;  
< +35 V  
ihcmR(dif) (th)  
CANL  
CANH  
Differential receiver threshold voltage –  
Recessive to Dominant (see Figure 6)  
−35 V < V  
−35 V < V  
< +35 V;  
< +35 V  
V
ihcmD(dif) (th)  
CANL  
CANH  
V
Differential receiver threshold voltage –  
Both transitions (see Figure 6)  
−12 V < V  
−12 V < V  
< +12 V;  
< +12 V  
0.9  
300  
1.15  
37  
V
ihcmD12(dif) (th)  
CANL  
CANH  
V
Differential receiver input voltage hys-  
teresis  
−2 V < V  
−2 V < V  
< +7 V;  
< +7 V  
200  
0.8  
26  
26  
0
mV  
V
i(dif) (hys)  
CANL  
CANH  
V
Differential receiver threshold voltage  
in standby mode  
−12 V < V  
−12 V < V  
< +12 V;  
< +12 V  
i(dif)  
(th)_STDBY  
CANL  
CANH  
R
Common−mode input resistance at pin  
CANH  
kW  
kW  
%
i(cm) (CANH)  
R
Common−mode input resistance at pin  
CANL  
15  
37  
i(cm) (CANL)  
R
Matching between pin CANH and pin  
CANL common mode input resistance  
V
CANH  
= V  
CANL  
−3  
+3  
i(cm) (m)  
R
Differential input resistance  
Input capacitance at pin CANH  
Input capacitance at pin CANL  
Differential input capacitance  
25  
50  
75  
30  
30  
10  
kW  
pF  
pF  
pF  
i(dif)  
C
V
TxD  
V
TxD  
V
TxD  
= V ; (Note 9)  
IO  
i(CANH)  
C
= V ; (Note 9)  
i(CANL)  
IO  
C
= V ; (Note 9)  
3.75  
i(dif)  
IO  
THERMAL SHUTDOWN  
Shutdown junction temperature  
TIMING CHARACTERISTICS (see Figure 5 and Figure 8)  
T
J(sd)  
Junction temperature rising  
150  
170  
185  
°C  
t
Delay TxD to bus active  
C = 100 pF between CANH to  
CANL  
50  
60  
ns  
ns  
d(TxD−BUSon)  
i
t
Delay TxD to bus inactive  
C = 100 pF between CANH to  
i
d(TxD−BUSoff)  
CANL  
t
t
Delay bus active to RxD  
Delay bus inactive to RxD  
C
C
= 15 pF  
= 15 pF  
60  
60  
ns  
ns  
d(BUSon−RxD)  
RxD  
RxD  
d(BUSoff−RxD)  
9. Values based on design and characterization, not tested in production  
www.onsemi.com  
8
NCV7349  
Table 6. CHARACTERISTICS (V = 4.75 V to 5.25 V; V = 2.8 V to 5.5 V (NCV7349−3 only); T = −40 to +150°C; R = 60 W  
CC  
IO  
J
LT  
unless specified otherwise. On chip versions without V pin, reference voltage for all digital inputs and outputs is V instead of V .)  
IO  
CC  
IO  
Symbol  
Parameter  
Conditions  
Min  
Typ  
Max  
Unit  
TIMING CHARACTERISTICS (see Figure 5 and Figure 8)  
t
pd  
Propagation delay TxD to RxD  
(NCV7349−0 version)  
C = 100 pF between CANH to  
CANL  
125  
130  
245  
250  
ns  
ns  
i
Propagation delay TxD to RxD  
(NCV7349−3 version)  
C = 100 pF between CANH to  
i
CANL  
t
Delay standby mode to normal mode  
Dominant time for wake−up via bus  
5
0.5  
1
8
20  
5
ms  
ms  
ms  
d(stb−nm)  
t
2.5  
4.5  
wake  
t
t
Delay to flag wake event (recessive to  
dominant transitions) (See Figure 4)  
Valid bus wake−up event,  
10  
dwakerd  
C
= 15 pF  
RxD  
Delay to flag wake event (dominant to  
recessive transitions) (See Figure 4)  
Valid bus wake−up event,  
= 15 pF  
0.5  
0.5  
1.2  
3.3  
7
4
ms  
ms  
dwakedr  
C
RxD  
t
Minimum pulse width on RxD  
(See Figure 4)  
5 ms t  
, C  
= 15 pF  
wake(RxD)  
WAKE  
RxD  
t
TxD dominant time for time−out  
V
TxD  
= 0 V  
2.6  
ms  
dom(TxD)  
9. Values based on design and characterization, not tested in production  
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product  
performance may not be indicated by the Electrical Characteristics if operated under different conditions.  
MEASUREMENT SETUPS AND DEFINITIONS  
recessive  
TxD  
recessive  
50%  
dominant  
50%  
CANH  
CANL  
0.9 V  
V
V
=
i(dif)  
0.5 V  
− V  
CANH  
CANL  
0.7 x V (*)  
CC  
RxD  
0.3 x V (*)  
CC  
t
t
d(TxD−BUSon)  
d(TxD−BUSoff)  
t
d(BUSoff−RXD)  
t
d(BUSon−RXD)  
t
pd  
t
pd  
*On NCV7349−3 V is replaced by V  
CC  
IO  
Figure 5. Transceiver Timing Diagram  
www.onsemi.com  
9
 
NCV7349  
V
RxD  
High  
Low  
Hysteresis  
V
0.9  
Figure 6. Hysteresis of the Receiver  
0.5  
i(dif)(hys)  
+5 V  
100 nF  
V
CC  
3
CANH  
7
5
6
TxD  
RxD  
1 nF  
1
4
Transient  
Generator  
1 nF  
CANL  
8
2
GND  
STB  
15 pF  
Figure 7. Test Circuit for Automotive Transients  
+5 V  
100 nF  
TxD  
V
CC  
3
CANH  
7
5
6
1
4
R
LT  
C
LT  
100 pF  
60 W  
RxD  
CANL  
8
2
STB  
GND  
15 pF  
Figure 8. Test Circuit for Timing Characteristics  
DEVICE ORDERING INFORMATION  
Temperature  
Range  
Part Number  
Description  
Package  
Shipping  
NCV7349D10R2G  
High Speed Low Power CAN Transceiver  
for the Japanese Market  
SOIC 150 8 GREEN  
(Matte Sn, JEDEC  
MS−012)  
3000 / Tape &  
Reel  
−40°C to +125°C  
NCV7349D13R2G  
High Speed Low Power CAN Transceiver  
(Pb−Free)  
for the Japanese Market with V pin  
IO  
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging  
Specifications Brochure, BRD8011/D.  
www.onsemi.com  
10  
NCV7349  
PACKAGE DIMENSIONS  
SOIC 8  
CASE 751AZ  
ISSUE A  
www.onsemi.com  
11  
NCV7349  
ON Semiconductor and the  
are registered trademarks of Semiconductor Components Industries, LLC (SCILLC) or its subsidiaries in the United States and/or other countries.  
SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed  
at www.onsemi.com/site/pdf/Patent−Marking.pdf. SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation  
or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and  
specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets  
and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each  
customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended,  
or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which  
the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or  
unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and  
expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim  
alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable  
copyright laws and is not for resale in any manner.  
PUBLICATION ORDERING INFORMATION  
LITERATURE FULFILLMENT:  
N. American Technical Support: 800−282−9855 Toll Free  
USA/Canada  
Europe, Middle East and Africa Technical Support:  
Phone: 421 33 790 2910  
Japan Customer Focus Center  
Phone: 81−3−5817−1050  
ON Semiconductor Website: www.onsemi.com  
Order Literature: http://www.onsemi.com/orderlit  
Literature Distribution Center for ON Semiconductor  
P.O. Box 5163, Denver, Colorado 80217 USA  
Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada  
Fax: 303−675−2176 or 800−344−3867 Toll Free USA/Canada  
Email: orderlit@onsemi.com  
For additional information, please contact your local  
Sales Representative  
NCV7349/D  

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