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PDF L9669 Data sheet ( Hoja de datos )

Número de pieza L9669
Descripción FAULT TOLERANT CAN TRANSCEIVER
Fabricantes STMicroelectronics 
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No Preview Available ! L9669 Hoja de datos, Descripción, Manual

L9669
FAULT TOLERANT CAN TRANSCEIVER
s FAULT TOLERANT DIFFERENTIAL
CAN TRANSCEIVER
s OPERATING SUPPLY VOLTAGE 6V TO 28V,
TRANSIENTS UP TO 40V
s LOW QUIESCENT CURRENT IN STANDBY
MODE (100µA) AND SLEEP MODE (37µA)
s ON CHIP DIAGNOSIS FOR ERRORS ON THE
PHYSICAL BUSLINES WITH MICRO
CONTROLLER INTERFACE
s OPTIMIZED EMI BEHAVIOUR DUE TO LIMITED
AND SYMMETRIC SLOPES OF CAN SIGNALS
s AUTOMATIC SWITCHING TO SINGLE WIRE
MODE UPON BUS FAILURES
s TWO-EDGE SENSITIVE WAKE-UP PIN
s SUPPORTS TRANSMISSION WITH GROUND
SHIFT VOLTAGES:
SINGLE WIRE: 1.5V
DIFFERENTIAL WIRE: 3v
s AN UNPOWERED NODE OR UNSUFFICIENT
SO14
ORDERING NUMBER: L9669
SUPPLIES DO NOT DISTURB THE BUS
LINES
DESCRIPTION
The L9669 is an integrated circuit which contains a
CAN physical line interface. It integrates all main lo-
cal functions for automotive body electronic applica-
tions connected to a CAN bus.
Figure 1. Block Diagram
KL30
(+12V)
Voltage +5V
Regulator
5Vint
75k
7
WAKE
VCC
12.5k
2
TXD
Wake-up
Control
VS INH
14 1
TXD
Control
CANH
Driver
CANH
Driver
VCC
10
11 CANH
12 CANL
CAN
BUSLINE
Filter
R RTH
R RTL
Receiver
3 RXD
5
NSTB
6
EN
100k
July 2003
99AT0001
Low
Power
Control
100k
Error
Management
& Diagnosis
13
GND
CANH Termination
CANL Termination
8 RTH
9 RTL
4
NERR
1/13

1 page




L9669 pdf
L9669
Table 4. Electrical Characteristcs (continued)
VCC = 4.75V to 5.25V, VS = 6V to 28V, Tj = -40°C to 150°C unless otherwise specified.
Item Symbol
Parameter
Test Condition
Min. Typ.
3 Termination RTH, RTL
3.1 RRTH Internal RTHto GND
switch-on resistance
Normal mode.
No errors.
VRTH = 1V
45
3.2 IRTH Internal RTHto GND
pull down current
Normal mode.
Error 3.
VRTH = 1V
75
3.3 RRTL Internal RTLto VCC
switch-on resistance
Normal mode.
No errors.
VRTL = VCC - 1V
45
3.4 IRTL Internal RTLto VCC
pull up current
Normal mode.
Error 4, 6 or 7.
VRTL = VCC - 1.5V
-75
3.5 RRTL-VS Internal RTLto VS
termination resistance
Sleep/standby mode.
VRTL = 1V, 5V
8 13
3.6 VRTH RTH output voltage
Sleep/standby mode
IRTH = 1mA
3.7 RRTH, External termination resistance
RTL
0.5
4 Input TXD
4.1 VTXDh TXD high level input voltage
VCC-
0.9
4.2 VTXDl TXD low level input voltage
0
4.3 ITXDh TXD high level input current
VTXD = 4 V
-200
4.4 ITXDl TXD low level input current
VTXD = 1 V
-800
5 Outputs RXD, NERR
5.1 VXh High level output voltage
VCC -
0.9
5.2 VXl Low level output voltage
0
6 Output INH
6.1 VdropI High level voltage drop
(VdropI = VS - VINH)
IINH = -0.18mA
Not sleep mode.
6.2 IIl Leakage current
VINH = 0V
Sleep mode.
-5
Max.
26
1
16
VCC
0.9
-25
-100
VCC
0.9
1
5
Unit
µA
µA
k
V
k
V
V
µA
µA
V
V
V
µA
5/13

5 Page





L9669 arduino
2. APPLICATION CIRCUIT DIAGRAM
Figure 5.
CAN
BUS
LINE
WAKE
7
KL30 (+12V)
RTH
8
VS
14
RRTH
CANH
11
CANL
12
CAN
Transceiver
INH
1
VCC
10
RRTL
RTL
9
99AT0005
13
GND
TXD
2
RXD
3
NERR
4
NSTB
5
EN
6
3. TEST CIRCUIT FOR DYNAMIC CHARACTERISTICS
Figure 6.
+5V
+14V
Voltage
+5V Regulator
CAN
Controller
NSTB
5
INH VS
1 14
VCC
10
RTL
9
EN
6
CANL
12
R1
C1
WAKE
7
TXD
2
CANH
11
C2
99AT0006
NERR
4
3
RXD
20pF
RTH
8
13
GND
R1
C1
L9669
11/13

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