ST L9613 User Manual
November 2008 Rev 2 1/15
15
L9613
Data interface
Features
■ Operating power supply voltage range
4.8V ≤ V
S
≤ 36V (40V for transients)
■ Reverse supply (battery) protected down to
V
S
≥ -24V
■ Standby mode with very low current
consumption IS
SB
≤ 1mA @ V
CC
≤ 0.5V
■ Min. possible Baud rate according to ISO9141
≥ 130 kBaud
■ Low quiescent current in off condition IS
OFF
=
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
≤ V
S
■
K output current limitation, typ. I
K
= 60mA
■ Defined OFF output status in under voltage
condition and V
S
or GND interruption
■ Controlled output slope for low EMI
■ High input impedance for open V
S
or GND
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.
SO8
Table 1. Device summary
Order code Package Packing
L9613B SO8 Tube
L9613B013TR SO8 Tape and reel
www.st.com
Contents L9613
2/15
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
L9613 Block diagram and pin description
3/15
1 Block diagram and pin description
1.1 Block diagram
Figure 1. Block diagram
1.2 Pin description
Figure 2. Pin connection (top view)
TX
RX
LO
GND
LI
VS
VCC
K
1,75V
RTX
RLO
RRX
ILI
IK
OFF
IK
SC
T
jMON
-
+
-
+
-
+
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
RX
LO
VCC
TX GND
K
VS
LI1
3
2
4
6
5
7
8
Electrical specification L9613
4/15
2 Electrical specification
2.1 Absolute maximum ratings
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
2.3 Electrical characteristics
Table 3. Absolute maximum ratings (No damage or latch)
Symbol Parameter Value Unit
V
S
Supply voltage
ISO transients t ≤ 400 ms
-24 to +36
-24 to +40
V
V
CC
Stabilized voltage -24 to +7 V
ΔV
S
/d
t
Supply voltage transient -10 to +10 V/µs
V
LI, K
Pin voltage
-24 to V
S
V
V
LO, RX, TX
-24 to V
CC
V
Table 4. Thermal data
Symbol Parameter Min. Typ. Max. Unit
T
JSDon
Temperature K shutdown switch on threshold 160 200 °C
T
JSDoff
Temperature K shutdown switch off threshold 150 200 °C
R
th j-amb
Thermal steady state junction to ambient resistance 130 155 180 °C/W
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
JSDon
temperature
shutdown switch-on-threshold. V
S
= 4.8 to 18V; V
CC
= 3 to 7V; T
j
= -40 to +150°C).
Symbol Parameter Test condition Min. Typ. Max. Unit
I
CC
Supply V
CC
current
V
CC
≤ 5.5V; VLI,VTX = 0V 1.4 2.3 mA
VK ≥ VK
high
; VLI ≥ VLI
high
VTX = V
CC
@ V
CC
≤ 5.5V
-5 40 150 µA
IS
ON
Supply V
S
Current
VLI, VTX = 0V
V
CC
≤ 0.5V @ V
S
≤ 12V
(1)
3.5
<1
10
50
mA
µA
IS
SB
V
CC
≤ 0.5V @ V
S
≤ 16V 100 µA
VK
low
Input voltage low state RX output status LOW -24 0.40V
S
V
VK
high
Input voltage high state RX output status HIGH 0.60V
S
V
S
V
L9613 Electrical specification
5/15
VK
hys
Input threshold hysteresis
VK
high
- VK
low
V
S
≥ 8V
V
S
≥ 6V
0.2
0.08
0.05V
S
1V
IK
off
Input current
@ VTX ≥ VTX
high
V
S
, V
CC
≥ 0 or V
S
V
CC
= open or
GND = open
-5 4 25 µA
RK
ON
Output ON impedance
@ V
S
≥ 6.5V
VTX ≤ VTX
low
IK ≥ 7mA
(2)
10 30 Ω
IK
SC
Short circuit current @ V
S
≥ 6.5V 40 60 150 mA
VK
sat
Output saturation voltage R
KO
= 1.5kΩ 1V
VTX
low
Input voltage LOW state -24 1 V
VTX
high
Input voltage HIGH state 3.5 V
CC
V
RRX
ON
RLO
ON
Output ON impedance
VK ≤ VK
low
; VLI ≤ VLI
low
V
S
≥ 6.5V I
RX, LO
≥ 1mA
40 90 Ω
VRX
sat
VLO
sat
Saturation output voltage no external load 1 V
IRX
SC
ILO
SC
Output short circuit current @ V
S
≥ 6.5V 9 20 50 mA
RTX Input pull-up resistance
Output status = (HIGH)
T
amb
= ≤ 85°C
-0.15V ≤ VLO ≤ V
CC
+ 0.15V
-0.15V ≤ VRX ≤ V
CC
+ 0.15V
51018kΩ
RTX Input pull up resistance
-0.15V ≤ VTX ≤ V
CC
+ 0.15V
T
amb
= ≤ 125°C
10 20 40 kΩ
VLI
low
Input voltage LOW state LO output status LOW -24 0.40V
S
V
VL
high
Input voltage HIGH state LO output status HIGH 0.60V
S
V
S
V
VLI
hys
Input threshold hysteresis VLI
high
- VLI
low
0.025V
S
0.8 V
ILI Input current
V
S
, V
CC
≥ 0 or
V
S
, V
CC
= open or
GND = open
-5 4 40 µA
C
Ki,LO,RX
Internal output capacities 20 pF
f
LI-LO
f
K-RX
f
TX-k
Transmission frequency
9V < V
S
< 16V (external loads)
T
min
≥ 20 · R
KO
· C
K
- K
line
130 kHz
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
JSDon
temperature
shutdown switch-on-threshold. V
S
= 4.8 to 18V; V
CC
= 3 to 7V; T
j
= -40 to +150°C).
Symbol Parameter Test condition Min. Typ. Max. Unit
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