Features
■ Operating power supply voltage range
4.8V ≤ V
■ Reverse supply (battery) protected down to
V
≥ -24V
S
■ Standby mode with very low current
consumption IS
■ Min. possible Baud rate according to ISO9141
≥ 130 kBaud
■ Low quiescent current in off condition IS
120µA
■ TTL compatible TX input
■ Bidirectional K-I/O pin with supply voltage
dependent input threshold
■ Over temperature shut down function selective
to K-I/O pin
■ Wide input and output voltage range:
-24V ≤ V
■
K output current limitation, typ. IK = 60mA
■ Defined OFF output status in under voltage
condition and V
■ Controlled output slope for low EMI
Table 1. Device summary
≤ 36V (40V for transients)
S
≤ 1mA @ VCC ≤ 0.5V
SB
≤ V
K
S
or GND interruption
S
OFF
=
L9613
Data interface
SO8
■ High input impedance for open V
connection
■ Defined output ON status of LO or RX for open
LI or K inputs
■ Defined K output OFF for TX input open
■ Integrated pull up resistors for TX, RX and LO
■ EMI robustness optimized
Description
The L9613 is a monolithic integrated circuit
containing standard ISO 9141 compatible
interface functions.
or GND
S
Order code Package Packing
L9613B SO8 Tube
L9613B013TR SO8 Tape and reel
November 2008 Rev 2 1/15
www.st.com
15
Contents L9613
Contents
1 Block diagram and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Electrical specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1 ESD application hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2/15
L9613 Block diagram and pin description
1 Block diagram and pin description
1.1 Block diagram
Figure 1. Block diagram
VS
K
LI
1.2 Pin description
Figure 2. Pin connection (top view)
RTX
IK
SC
T
IK
OFF
jMON
+
-
+
-
ILI
RX
LO
VCC
TX GND
+
8
2
3
4
7
6
5
RLO
1,75V
LI1
VS
K
RRX
VCC
TX
RX
LO
GND
Table 2. Pin description
N. Name Function
1 RX Output for K as input
2 LO Output L comparator
3 VCC Stabilized voltage supply
4 TX Input for K as output
5 GND Common GND
6 K Bidirectional I/O
7 VS Supply voltage
8 LI Input L comparator
3/15
Electrical specification L9613
2 Electrical specification
2.1 Absolute maximum ratings
Table 3. Absolute maximum ratings (No damage or latch)
Symbol Parameter Value Unit
V
S
V
CC
ΔV
S/dt
V
LI, K
V
LO, RX, TX
Supply voltage
ISO transients t ≤ 400 ms
Stabilized voltage -24 to +7 V
Supply voltage transient -10 to +10 V/µs
Pin voltage
-24 to +36
-24 to +40
V
-24 to VS V
-24 to VCC V
Note: Max. ESD voltages are ±2kV with human body model C = 100pF, R = 1.5k corresponds to
maximum energy dissipation 0.2mJ according to MIL883C.
2.2 Thermal data
Table 4. Thermal data
Symbol Parameter Min. Typ. Max. Unit
T
JSDon
T
JSDoff
R
th j-amb
Temperature K shutdown switch on threshold 160 200 °C
Temperature K shutdown switch off threshold 150 200 °C
Thermal steady state junction to ambient resistance 130 155 180 °C/W
2.3 Electrical characteristics
Table 5. Electrical characteristics
(The electrical characteristics are valid within the below defined operating conditions, unless
otherwise specified. The function is guaranteed by design until T
shutdown switch-on-threshold. V
Symbol Parameter Test condition Min. Typ. Max. Unit
I
CC
IS
ON
IS
SB
VK
VK
high
4/15
Supply VCC current
Supply VS Current
Input voltage low state RX output status LOW -24 0.40VSV
low
Input voltage high state RX output status HIGH 0.60V
= 4.8 to 18V; VCC = 3 to 7V; Tj = -40 to +150°C).
S
V
≤ 5.5V; VLI,VTX = 0V 1.4 2.3 mA
CC
VK ≥ VK
VTX = V
; VLI ≥ VLI
high
@ VCC ≤ 5.5V
CC
high
VLI, VTX = 0V
VCC ≤ 0.5V @ VS ≤ 12V
(1)
VCC ≤ 0.5V @ VS ≤ 16V 100 µA
temperature
JSDon
-5 40 150 µA
3.5
<1
S
10
50
V
S
mA
µA
V
L9613 Electrical specification
Table 5. Electrical characteristics (continued)
(The electrical characteristics are valid within the below defined operating conditions, unless
otherwise specified. The function is guaranteed by design until T
shutdown switch-on-threshold. V
Symbol Parameter Test condition Min. Typ. Max. Unit
VK
IK
RK
IK
SC
VK
VTX
VTX
RRX
RLO
VRX
VLO
IRX
ILO
RTX Input pull-up resistance
RTX Input pull up resistance
VLI
VL
high
VLI
ILI Input current
C
Ki,LO,RX
f
LI-LO
f
K-RX
f
TX-k
Input threshold hysteresis
hys
Input current
off
Output ON impedance
ON
Short circuit current @ VS ≥ 6.5V 40 60 150 mA
Output saturation voltage RKO = 1.5kΩ 1V
sat
Input voltage LOW state -24 1 V
low
Input voltage HIGH state 3.5 V
high
ON
Output ON impedance
ON
sat
Saturation output voltage no external load 1 V
sat
SC
Output short circuit current @ VS ≥ 6.5V 9 20 50 mA
SC
Input voltage LOW state LO output status LOW -24 0.40VSV
low
Input voltage HIGH state LO output status HIGH 0.60V
Input threshold hysteresis VLI
hys
Internal output capacities 20 pF
Transmission frequency
= 4.8 to 18V; VCC = 3 to 7V; Tj = -40 to +150°C).
S
VK
- VK
high
≥ 8V
V
S
≥ 6V
V
S
@ VTX ≥ VTX
, VCC ≥ 0 or V
V
S
low
high
0.2
0.08
S
VCC = open or
GND = open
@ V
≥ 6.5V
S
VTX ≤ VTX
VK ≤ VK
V
≥ 6.5V I
S
low
IK ≥ 7mA
low
; VLI ≤ VLI
≥ 1mA
RX, LO
low
(2)
Output status = (HIGH)
T
= ≤ 85°C
amb
-0.15V ≤ VLO ≤ VCC + 0.15V
-0.15V ≤ VRX ≤ V
-0.15V ≤ VTX ≤ V
= ≤ 125°C
T
amb
- VLI
high
V
, VCC ≥ 0 or
S
, VCC = open or
V
S
low
+ 0.15V
CC
+ 0.15V
CC
10 20 40 kΩ
GND = open
9V < VS < 16V (external loads)
T
≥ 20 · RKO · CK - K
min
line
130 kHz
temperature
JSDon
0.05V
1V
S
-5 4 25 µA
10 30 Ω
CC
V
40 90 Ω
51018kΩ
S
0.025V
S
V
0.8 V
V
S
-5 4 40 µA
5/15
Electrical specification L9613
Table 5. Electrical characteristics (continued)
(The electrical characteristics are valid within the below defined operating conditions, unless
otherwise specified. The function is guaranteed by design until T
shutdown switch-on-threshold. V
Symbol Parameter Test condition Min. Typ. Max. Unit
t
rLI-LO
t
rK-RX
t
rTX-K
t
fLI-LO
t
fK-RX
t
fTX-K
t
OFF,LI-LO
t
OFF,K-RX
t
OFF,TX-K
t
ON,LI-LO
t
ON,K-RX
t
ON,TX-K
td
SB ON
td
SB OFF
1. In case of spikes on VCC ≥ 0.5V KOUT will be switched On for typical 10µs which represents the standby tdSB reaction
time.
2. For output currents lower than this value a series protection diode can become active. See also Figure 5 and 7.
3. Speed limitation related to external capacitance C
Rise time
Fall time 0.4 2 µs
Switch OFF time
Switch ON time 1 13 µs
Standby reaction time
tr = R
LO, RX
= 4.8 to 18V; VCC = 3 to 7V; Tj = -40 to +150°C).
S
for the definition of t
see Figure 6
(3)
r
, tf
9V < VS < 16V (external loads)
T
≥ 20 · RKO · CK - K
min
for the definition of ton, t
line
OFF
see Figure 6.
9V < V
T
< 16V (external loads)
S
≥ 20 · RKO · CK - K
min
line
VTX = 0V, IK ≥ 7mA
VLI = 0V, 9V < VS < 16V
see
ext RX, LO
and internal impedance CLO, RX, RLO, RRX for rise time.
· (C
LO,RX
+ C
ext RX, LO
) · 1.38.
temperature
JSDon
0.4 2 µs
113µs
10
20
20
40 µs
6/15
L9613 Functional description
3 Functional description
The L9613 is a monolithic bus driver designed to provide bidirectional serial communication
in automotive applications.
The device provides a bidirectional link, called K, to the V
includes a separate comparator L which is also able to be linked to the V
Bat related diagnosis bus. It also
Bat bus. The input
TX and output RX of K are related to VCC with her integrated pull up resistances. Also the L
comparator output LO has a pull up resistance connected to VCC.
All V
bus defined inputs LI and K have supply voltage dependent thresholds together with
Bat
sufficient hysteresis to suppress line spikes. These pins are protected against over voltages,
shorts to GND and VS and can also be driven beyond VS and GND. These features are also
given for TX, RX and LI only taking into account the behavior of the internal pull up
resistances. The thermal shut down function switches OFF the K output if the chip
temperature increases above the thermal shut down threshold. To reactivate K again the
chip temperature must decrease below the K switch ON temp. To achieve no fault for VS
intervillage conditions the outputs will be switched OFF and stay at high impedance. The
device is also protected against reverse battery condition. During lack of VS or GND all pins
shows high impedance characteristic. To realize a lack of the VS related bus line LI and K
the outputs LO and RX shows defined ON status. Suppressing all 4 classes of "Schaffner"
signals (Schaffner 1; 2; 3a,b; 4) all pins can be load with short energy pulses of max.
±0.2mJ. All these features together with a high possible baud rate >130Kbaud, controlled
output slopes for low EMI, a wide power supply voltage range and a real standby function
with zero power consumption IS
SB typ ≤ 1µA during system de powering VCC ≤ 0.5V make
this device high efficient for automotive bus system.
After wake up of the system from SB condition the first output signal will have an additional
delay time td
typ
≤ 5µs.
The typical output voltage behavior for the K, LO, RX outputs as a function of the output
current is shown in Figure 4. Figure 5 shows a waveform of the output signal when the low
level changes from R
ON ⋅ IOUT to IOUT ⋅ 2 ⋅ RON + UBE state. This variation occurs due to too low
output current or after a negative transient forced to the output or to the supply voltage line.
7/15
Functional description L9613
Figure 3. Application circuit
510
0.4
VS
Ω
Ω
Diagnostic
Tester
VS
40V
R
KO
K
C
K
K
IK
SC
T
jMON
IK
OFF
RTX RLO RRX
+
1,75V
-
LI
L
ILI
+
-
+
VCC
TX
RX
LO
GND
I/O
I/O
I/O
5V
VCC
uP
VDD
ECU1
K Li ne
L Lin e
K
C
K
LI
ECU2
Figure 4. Output characteristics at K, LO, RX
I
OUT
I
OUT
MIN
N
O
S
D
R
protection diode
V
=
OUT
V
=
OUT
0.8V
I
R
OUT DSON
*
I
OUT DSON
2
**
R
+ U
BE
V
OUT
8/15
L9613 Functional description
Figure 5. Output signal shape related to output current
V
IN
t
V
OUT
I
2
**
OUT DSON
+ U
R
I
R
OUT DSON
*
BE
I
I
OUT
>
I
OUT
MIN
I
OUT
I
<
OUT
MIN
OUT
Figure 6. Input to output timings and output pulse shape
V
I
V
OUT
80% 80%
>
I
OUT
MIN
t
t
20%
t
OFF
20%
t
r
t
f
t
ON
t
9/15
Functional description L9613
Figure 7. Standby reaction time
5V
VCC
0V
80%
VK
20%
td
SB
OFF
VLO
VCC
80%
td
SB
ON
td
SB
ON
Figure 8. Standby current consumption
IS
100µA
50µA
SB
Ω
k
0
5
≈
R
12V 16V
VS
10/15
L9613 Functional description
Figure 9. EMS performance (ISO 9141 BUS system) diagram
VS = 12V
=
510
Ω
50
Ω
10kHz
Δ
Signal com parison
10%
Δ≤ ±
VS
TX K
L9613
VS
RX
L9613
136
1.5nF
K
Figure 10. EMS rejection frequency vs. power
P
i(mW)
10000
not incident power resistant
Ω
Ω
68
Probe
NAP - 73
P
i
NAP
40dB
P
= 5W
imax
Rhode & Schwartz
SMG
0.1 - 1000MHz
5000
1000
incident power resistant
100
1 10 100 1000
11/15
f
(MHz)
Functional description L9613
3.1 ESD application hints
To improve the ESD robustness of this device above specified ±2 kV/HBM external blocking
capacitors must be used. Nevertheless the max. energy which can be clamped by this
device should not exceeds 0.2mJ for each pin. An equivalent input diagram for calculation
can be seen in Figure 11.
ESD discharge model:
E
ESD
1
-- -
C
2
2
HBMUESD
Figure 11. Input diagram for calculation
R
HBM
Ω
C
HBM
100pF
1.5k
0.2mJ
C
ext
1
---
2
45V
45V
E
C
≤
0.2mJ
EXT
⋅+==
2
45V()
12/15
L9613 Package information
4 Package information
In order to meet environmental requirements, ST (also) offers these devices in ECOPACK®
packages. ECOPACK
®
packages are lead-free. The category of second Level Interconnect
is marked on the package and on the inner box label, in compliance with JEDEC Standard
JESD97. The maximum ratings related to soldering conditions are also marked on the inner
box label.
ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com.
Figure 12. SO8 mechanical data and package dimensions
DIM.
A 1.750 0.0689
A1 0.100 0.250 0.0039 0.0098
A2 1.250 0.0492
b 0.280 0.480 0.0110 0.0189
c 0.170 0.230 0.0067 0.0091
(1)
D
E 5.800 6.000 6.200 0.2283 0.2362 0.2441
(2)
E1
e 1.270 0.0500
h 0.250 0.500 0.0098 0.0197
L 0.400 1.270 0.0157 0.0500
L1 1.040 0.0409
k0˚8˚0˚8˚
ccc 0.100 0.0039
Notes: 1. Dimensions D does not include mold flash,
2. Dimension “E1” does not include interlead flash
mm inch
MIN. TYP. MAX. MIN. TYP. MAX.
4.800 4.900 5.000 0.1890 0.1929 0.1969
3.800 3.900 4.000 0.1496 0.1535 0.1575
protrusions or gate burrs.
Mold flash, potr usions or gate b urrs shall not
exceed 0.15mm in total (bot h side).
or protrusions. Interlead flash or protrusions shall
not exceed 0.25m m per side.
OUTLINE AND
MECHANICAL DATA
SO-8
0016023 D
13/15
Revision history L9613
5 Revision history
Table 6. Document revision history
Date Revision Changes
24-Jan-2002 5 Initial release.
Document reformatted.
11-Nov-2008 6
Added Table 1: Device summary on page 1.
Updated Section 4: Package information on page 13.
14/15
L9613
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