ST L9615 User Manual
®
L9615 MEETS ISO/DIS 11898 UP TO
500KBAUD
TRANSMITTER
- GENERATION OF DIFFERENTIAL OUTPUT
SIGNALS
- SHORT CIRCUIT PROTECTED FROM -5V
TO 36V, DETECTION & SHUTDOWN
- SLOP E CONT ROL T O REDU CE RF I AND E MI
- TWO STAT ES ADJUST A BL E SL O P E
CONTROL (≤500KBAUD/≤125KBAUD)
RECEIVER
- DIFFERENZIAL INPUT WITH HIGH
INTERFERENCE SUPPRESSION
- COMMON MODE INPUT VOLTAGE RANGE
(V
) FROM -2V TO VS+3V
COM
PACKAGE: SO 8
DESCRIPTION
The L9615 is a bidirectional transceiver for signal
L9615
CAN BUS TRANSCEIVER
SO8
ORDERING NUMBER:
conditioning and processing in connection with a
CAN controller. Data rates of up to 500KBAUD
are supported using either shielded or nonshielded pair of lines.
L9615D
BLOCK DIAGRAM
1
TX0
8
ASC
4
RX0
5
RX1
1
&
td
1 V
V
REF
≥1
&
+
S
-
V
CLmax
+
-
MM
1
1
M
RECEIVER PROTECTION TRANSMITTER
3
7
6
2
D96AT245
V
S
C_H
C_L
GND
September 2003
1/8
L9615
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
S
, V
V
C_H
I
, I
C_H
C_L
V
DC
I
RXO
T
, T
stg
T
op
All voltages, except bus voltage, are defined with respect to pin 2
Positive currents flow into the IC.
PIN CONNECTION
Supply Voltage -0.3 to 7 V
Bus Voltage at C_H, C_L (VS 0 to 5.5V) -5 to 36 V
C_L
Off State Leakage Current at C_H, C_L ( VS =0 to 5.5V,
V
= -5 to 36V, V
C_H
= -5 to 36 )
C_L
-3 to 5 mA
DC Voltage at TXO, ASC (VS 0 to 5.5V) GND -0.3 to VS +0.3 V
Output Current at RXO (VS 0 to 5.5V) -0.3 to 1 mA
Storage and Junction Temperature Range -40 to 150 °C
J
Operating Temperature Range -40 to 110 °C
TX0
GND
V
S
RX0 RX1
2
3
4
D96AT246
8
7
6
5
ASC1
C_H
C_L
THERMAL DATA
Symbol Parameter Value Unit
PIN FUNCTIONS
N. Name Function
1 TXO Transmitter Input
2 GND Ground
3V
S
4 RXO Receive Output
5 RX1 Reference Voltage
6 C_L Low Side Bus Output
7 C_H High Side Bus Output
8 ASC Adjustable Slope Control
Supply Voltage
2/8
L9615
ELECTRICAL CHARACTERISTICS
S
cessive: VTXO = V
; All voltages, except bus voltage, are defined with respect to pin 2. Positive currents
= -40 to 110°C; VS = 4.5 to 5.5V; Dominat: VTXO = GND; Re-
(T
OP
flow into the IC unless otherwise specified.)
Symbol Parameter Test Condition Min. Typ. Max. Unit
V
S
I
S
TRANSMITTER SECTION
C
TXO
V
TXO
I
TXO
C
ASC
V
ASC
I
ASC
, V
V
C_H
I
, I
C_H
R
IN(C_H, C_L)
R
Diff(C_H, C_L)
V
Diff
V
- V
C_H
V
Diff
V
- V
C_H
t
d
I
A
V
C_Lmax
Supply Voltage 4.5 5 5.5 V
Supply Current Dominant 80 mA
Recessive 20 mA
A
= 60Ω between C_H and C_L)
(R
TXO Input Capacitance 0V < V
TXO High Level Input Voltage 0.7 V
TXO
< V
S
25 pF
S
TXO Low Level Input Voltage 0 0.3 V
TXO High Level Input Current V
TXO Low Level Input Current V
ASC Input Capacitance 0V < V
ASC Input Voltage for High
= V
TXO
S
= GND -275 0 -25 µA
TXO
< V
ASC
S
-2 0 2 µA
25 pF
0 0.1 V
Speed
ASC Input Voltage for Low Speed 0.9 V
ASC Input Current V
Bus Voltage Recessive Recessive 0.4 VS0.5 Vs 0.6 Vs
C_L
Leakage Current Recessive VC_L = V
C_L
= V
ASC
S
V
= 0V -2 0 2 µA
ASC
= -2 to 7V -0.7 0.7 mA
C_H
= V
V
C_L
= 1 to 4V -0.3 0.3 mA
C_H
S
25 275 µA
Input Resistence Recessive 5 50 KΩ
Differential Input Resistence Recessive 10 100 KΩ
=
Differential Output Voltage Dominant, R
C_L)
=
Differential Output Voltage Recessive -500 0 50 mV
C_L)
Short Circuit Detection Time
RCS < 1Ω 1510µs
A
1.5 3 V
C_H to C_L ; C_H to B
Supply Current in Case of Short
150 mA
Circuit, C_H to C_L, C_H to B
(time = t
Overvoltage Protection
)
d
7810V
Threshold on C_L
V
VS
S
S
S
RECEIVE SECTION
V
V
V
C_H -VC_L
V
COM
+V
V
RXO
=
S
= (V
C_L
HYS
RXO High Level Output Voltage V
RXO Low Level Output Voltage V
Input Signal Threshold V
Input Common Mode Voltage
C_H
)/2
Range
Differential Input Hysteresis 150 mV
REFERENCE OUTPUT
V
RX1
R
RX1
Reference Voltage I
Output Resistance 2 9 KΩ
< 0.5V; I
Diff
V
= -2 to 7V; V
C_H
> 0.9V; I
Diff
V
= -2 to 7V; V
C_H
= -2 to 7V; V
C_H
= 0.3mA;
RXO
= 1mA;
RXO
0.9 V
= -2 to 7V;
C_L
= -2 to 7V;
C_L
= -2 to 7V; 500 700 900 mV
C_L
S
-2 7 V
= 0 0.45 VS0.5 VS0.55 V
RX1
Vs V
0.5 V
S
V
3/8
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