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STMicroelectronics
STMicroelectronics

L9616D Datasheet

HIGH SPEED CAN BUS TRANSCEIVER


L9616D Datasheet Preview


® L9616
HIGH SPEED CAN BUS TRANSCEIVER
L9616 MEETS ISO/DIS 11898 UP TO
1MEGABAUD
TRANSMITTER
- GENERATION OF DIFFERENTIAL OUTPUT
SIGNALS
- SHORT CIRCUIT PROTECTED FROM -5V
TO 36V, DETECTION & SHUTDOWN
- SLOPE CONTROL TO REDUCE RFI AND EMI
- TWO STATES ADJUSTABLE SLOPE
CONTROL (1MEGABAUD/250KBAUD)
RECEIVER
- DIFFERENZIAL INPUT WITH HIGH
INTERFERENCE SUPPRESSION
- COMMON MODE INPUT VOLTAGE RANGE
(VCOM) FROM -2V TO VS+3V
ESD PROTECTION LEVEL UP TO 4kV
PACKAGE: SO-8
DESCRIPTION
The L9616 is a bidirectional transceiver for signal
BLOCK DIAGRAM
SO-8
ORDERING NUMBER: L9616D
conditioning and processing in connection with a
CAN controller. Data rates of up to 1MEGABAUD
are supported using either shielded or non-
shielded pair of lines.
1
TX0
ASC
RX0
8
4
5
RX1
+
1 VS-
M VREF
1
& td
1
&
+
1
-
VCLmax M
RECEIVER
November 2000
PROTECTION
3
VS
1
7
C_H
C_L
6
M
2
GND
TRANSMITTER
D96AT245
1/8
Page 1

L9616
ABSOLUTE MAXIMUM RATINGS
Symbol
VS
VC_H, VC_L
IC_H, IC_L
VDC
IRXO
Tstg, TJ
Top
Parameter
Supply Voltage
Bus Voltage at C_H, C_L (VS 0 to 5.5V)
Off State Leakage Current at C_H, C_L ( VS =0 to 5.5V,
VC_H = -5 to 36V, VC_L = -5 to 36 )
DC Voltage at TXO, ASC (VS 0 to 5.5V)
Output Current at RXO (VS 0 to 5.5V)
Storage and Junction Temperature Range
Operating Temperature Range
All voltages, except bus voltage, are defined with respect to pin 2
Positive currents flow into the IC.
Value
-0.3 to 7
-5 to 36
-3 to 5
GND -0.3 to VS +0.3
-0.3 to 1
-40 to 150
-40 to 125
Unit
V
V
mA
V
mA
°C
°C
PIN CONNECTION
THERMAL DATA
Symbol
TX0
GND
VS
RX0
18
27
36
45
D96AT246
ASC
C_H
C_L
RX1
Parameter
PIN FUNCTIONS
N. Name
1 TXO
2 GND
3 VS
4 RXO
5 RX1
6 C_L
7 C_H
8 ASC
Transmitter Input
Ground
Supply Voltage
Receive Output
Reference Voltage
Low Side Bus Output
High Side Bus Output
Adjustable Slope Control
2/8
Function
Value
Unit
Page 2

L9616
ELECTRICAL CHARACTERISTICS (TOP = -40 to 125°C; VS = 4.5 to 5.5V; Dominat: VTXO = GND; Re-
cessive: VTXO = VS; All voltages, except bus voltage, are defined with respect to pin 2. Positive currents
flow into the IC unless otherwise specified.)
Symbol
VS
IS
Parameter
Supply Voltage
Supply Current
Test Condition
Dominant
Recessive
Min.
4.5
Typ.
5
Max.
5.5
80
20
TRANSMITTER SECTION (RA = 60between C_H and C_L)
CTXO
TXO Input Capacitance
0V < VTXO < VS
VTXO
TXO High Level Input Voltage
TXO Low Level Input Voltage
ITXO TXO High Level Input Current VTXO = VS
TXO Low Level Input Current VTXO = GND
CASC
ASC Input Capacitance
0V < VASC < VS
VASC
ASC Input Voltage for High
Speed
ASC Input Voltage for Low Speed
IASC ASC Input Current
VASC = VS
VASC = 0V
VC_H, VC_L Bus Voltage Recessive
Recessive
IC_H, IC_L Leakage Current Recessive
VC_L = VC_H = -2 to 7V
VC_L = VC_H = 1 to 4V
RIN(C_H, C_L) Input Resistence
Recessive
RDiff(C_H, C_L) Differential Input Resistence
Recessive
VDiff =
Differential Output Voltage
VC_H - V C_L)
Dominant, RA
VDiff =
Differential Output Voltage
VC_H - V C_L)
Recessive
td
Short Circuit Detection Time
RCS < 1
C_H to C_L ; C_H to B
IA Supply Current in Case of Short
Circuit, C_H to C_L, C_H to B
(time = td)
VC_Lmax
Overvoltage Protection
Threshold on C_L
25
0.7 VS
VS
0 0.3 VS
-2 0
2
-275
0
-25
25
0 0.1 VS
0.9 VS
25
-2
0.4 VS
-0.7
-0.3
5
10
1.5
0
0.5 Vs
VS
275
2
0.6 Vs
0.7
0.3
50
100
3
-500
0
50
1 5 10
150
7 8 10
RECEIVE SECTION
VRXO
RXO High Level Output Voltage
RXO Low Level Output Voltage
VS =
VC_H -VC_L
VCOM = (VC_H
+VC_L)/2
VHYS
Input Signal Threshold
Input Common Mode Voltage
Range
Differential Input Hysteresis
VDiff < 0.5V; IRXO = 0.3mA;
VC_H = -2 to 7V; VC_L = -2 to 7V;
VDiff > 0.9V; IRXO = 1mA;
VC_H = -2 to 7V; VC_L = -2 to 7V;
VC_H = -2 to 7V; VC_L = -2 to 7V;
0.9 VS
500
-2
700
150
Vs
0.5
900
7
REFERENCE OUTPUT
VRX1
Reference Voltage
RRX1
Output Resistance
IRX1 = 0
0.45 VS 0.5 VS 0.55 VS
29
Unit
V
mA
mA
pF
µA
µA
pF
µA
µA
mA
mA
K
K
V
mV
µs
mA
V
V
V
mV
V
mV
V
K
3/8
Page 3

L9616
DINAMIC CHARACTERISTICS (CA = 47pF between C_H and C_L; VS = 5V; tR < 5ns;
CRXO = 20pF between RXO and B; RA = 60between C_H and C_L)
Symbol
tOT
SR
tOR
tOTR
Parameter
Signal Delay TXO to C_H, C_L
Differential Output Slew Rate
(Transmitter)
Signal Delay C_H, C_L to RXO
Signal Delay TXO to RXO
Test Condition
VASC = 0V
VASC = VS
VASC = 0V
VASC = 0V
Min. Typ.
20
5
Max.
50
50
20
150
300
Unit
ns
V/µs
V/µs
ns
ns
FUNCTIONAL DESCRIPTION
The L9616 is used as an interface between a
CAN controller and the physical bus. The device
provides transmitting capability to the CAN con-
troller.
The transmitter outputs C_H and C_L are pro-
tected against short circuits and electrical tran-
sients which may occur in an automotive environ-
ment. In case of short circuit (C_H to C_L, C_H to
B) the protection circuit recognizes this fault con-
ditionand the transmitter output stages are dis-
abled with a delay of max. 10µs to prevent de-
struction of the IC and high consumption of
supply current IS. If VC_L >VC_Lmax the transmitter
output stages would be disabled immediately.
Pin ASC makes it possible to select two different
TYPICAL APPLICATION
modes of operation: High speed (1MEGABaud)
and low speed (250kBaud).
The ASC pin is tied to GND for normal operation
at 1MEGABaud. For slower speed operation at
250kBaud the rise and fall slope of the bus out-
put can be decreased to reduce EMI by connect-
ingg the ASC pin to VS.
FUNCTIONAL TABLE
TXO
L
H or
Floating
C_H
H
Floating
VS/2
C_L
L
Floating
VS/2
Bus State
Dominant
Recessive
RXO
L
H
VSn
VCOM
SYSTEM n
CONTROLLER
L9615
VGNDn
VGNDD
VGNDm
RA
VSm
SYSTEM m
CAN BUS
L9615
CONTROLLER
C_H
RA
C_L
VDiff
VGNDm
D96AT247A
4/8
Page 4
Part Number L9616D
Manufactur STMicroelectronics
Description HIGH SPEED CAN BUS TRANSCEIVER
Total Page 8 Pages
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L9616D datasheet
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