Datasheet L9613B Datasheet (SGS Thomson Microelectronics)



OPERATING POWER SUPPLY VOLTAGE
RANGE 4.8V ≤

VS≤ 36V (40V FOR TRAN-

SIENTS)
REVERSE SUPPLY (BATTERY) PRO-

TECTED DOWNTOV

≥ -24V

S

STANDBYMODE WITHVERYLOWCURRENT
CONSUMPTIONIS

≤ 1µA@VCC≤0.5V

SB

MIN POSSIBLE BAUD RATE ACCORDING
TO ISO9141 ≥ 130KBAUD

TTL COMPATIBLETX INPUT
BIDIRECTIONAL K-I/O PIN WITH SUPPLY

VOLTAGEDEPENDENTINPUTTHRESHOLD
OVERTEMPERATURE SHUT DOWN FUNC-

TION SELECTIVETO K-I/O PIN
WIDE INPUT AND OUTPUT VOLTAGE

RANGE -24V≤ VK ≤ VS
KOUTPUTCURRENT LIMITATION,TYPIK= 60mA
DEFINEDOFF OUTPUT STATUS IN UNDER-

VOLTAGE CONDITION AND VS OR GND IN­TERRUPTION

CONTROLLEDOUTPUTSLOPEFORLOWEMI
HIGH INPUT IMPEDANCE FOR OPEN VS

OR GND CONNECTION

BLOCK DIAGRAM

L9613B

DATA INTERFACE

SO8

ORDERING NUMBERS: L9613B013TR (TAPE&REEL)

L9613B (TUBES)

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 ROBUSTNESSOPTIMIZED

DESCRIPTION

The L9613B is a monolithicintegrated circuit con­taining medium speed data interface functions.

November 1999

VS

LI

RTX

K

IK

OFF

IK

T

jMON

SC

­+

-

RLO

1,75V

RRX

TX

RX

+

VCC

-

ILI

+

LO

GND

1/10

L9613B

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter Value Unit

V

S

Supply Voltage
ISO transient t ≤ 400ms

V

CC

/dt Supply Voltage Transient -10 to +10 V/µs

dV

S

V

LI,K

V

LO, RX, TX

* max ESD voltages are +/-2KV with human body model C=100pF, R=1.5KΩ corresponds to maximum energy

Stabilized Voltage -24V to 7 V

Pin voltage -24 to V
Pin voltage -24 to V

PIN CONNECTION

-24 to +36

-24 to +40

S

CC

V
V

V
V

RX

LO

VCC

TX

1

2

3

4

8

7

6

5

LI

VS

K

GND

THERMAL DATA

Symbol Parameter Min. Typ. Max. Unit

T
T

R

JSDon
JSDoff

th(j-a)

Temperature shutdown switch-on-threshold 160 200 °C
Temperature shutdown switch-off-threshold 150 °C
Thermal steady state junction to ambient resistance 130 155 180 °C/W

PIN FUNCTIONS

N. Name Description

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

2/10

L9613B

ELECTRICAL CHARACTERISTICS (The electrical characteristics are valid within the below defined

OperatingConditions, unless otherwise specified).
The function is guaranteedby design until T
V

S

V

CC

T

J

Symbol Parameter Test Condition Min. Typ. Max. Unit

VTX

Note 1) For external supplied output currentslower than this value a series protection diode can become active. See also Fig. 4 and 5.

Supplyvoltage 4.8 V... 18 V
Stabilizedvoltage 3 V... 7 V
Junctiontemperature -40 °C... 150°C

I

CC

IS

ON

IS

SB

VK

low

VK

high

VK

hys

IK

OFF

RK

ON

IK

SC

VK

sat

VTX

RRX
RLO

VRX
VLO

IRX
ILO

RTX Input pull up resistance Output status = (HIGH)

RTX Input pull up resistance -0.15V≤VTX≤VCC + 0.15V

VLI

low

VLI

high

ILI Input current VS, VCC ≥ 0V or

Supply VCCCurrent V

Supply VS Current VLI,VTX = 0V 3.5 10 mA

Input Voltage LOW State RX output status LOW -24 0.40VS V
Input Voltage HIGH State RX output status HIGH 0.60VS VS V
Input Threshold Hysteresis VK

Input Current VTX ≥ VTX

Output ON Impedance @ V

Short Circuit Current VS≥ 6.5V 40 60 150 mA
Output Saturation Voltage RKO= 1.5K
Input Voltage

low

LOW State -24 1 V
Input Voltage

high

HIGH State 3.5 VCC V
Output ON Impedance VK ≤ VK

ON
ON

Saturation Output Voltage No external load 1 V

sat
sat

Output short circuit current VS≥ 6.5V

SC
SC

Input voltage LOW state LO output status LOW -24 0.40VS V
Input voltage HIGH state LO output status HIGH 0.60VS VS V

temperatureshutdownswitch-on-threshold.

JSDon

5.5V

≤

CC

VLI, VTX = 0V
VK≥VK

VLI≥VLI
VTX = V

high

high

CC

-5 40 150

@VCC≤ 5.5V

= 0.5V

V

CC

@V

12V 3)

≤

S

VCC= 0.5V, see fig. 5
@V

≤16V

S

-VK

high

V

S

V

≥ 6.0V

S

VS,V
V

CC

VTX ≤ VTX

low

8.0V

≥

high

CC

0V or V

≥

,

S

= open or GND = open

6.5V

≥

S

IK ≥ 7mA 1)

low

0.2

0.08

-5 4 40 µA

Ω

; VLI ≤ VLI

low

6.5V; I

V

≥

S

RX,LO

≥

low

1mA

92050mA
51018k

T

85°C

≤

A

-0.15V ≤ VLO ≤ VCC + 0.15V

-0.15V≤VRX≤VCC + 0.15V
10 20 40 k

T

125°C

≤

amb

-5 4 40 µA
VS, VCC = open or
GND = open

1.4 2.5 mA

µ

<1 50

100

µ

µ

0.05VS 1.0 V

10 30

1V

40 90 Ω

A

A

A

V

Ω

Ω

Ω

3/10

L9613B

ELECTRICALCHARACTERISTICS(continued)

Symbol Parameter Test Condition Min. Typ. Max. Unit

C

KI,LO,RX

f

LI-LO

f

K-RX

f

TX-K

f

LI-LO

f

K-RX

f

TX-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

Note 2) Speed limitationrelated to external capacitance C

Note 3) In case of spikes on VCC≥0.5V KOUT will be switched On for typical 10µs whichrepresents the standby td

Internal output capacities 20 pF
Transmission frequency 9V < VS< 16V,

130 kHz
(external loads)
T

min

Rise Time for the definitionof tr, tf see

≥20⋅

R

C

⋅

KO

K-Kline

0.4 2 µs

FIG. 1, 2)

Fall Time 9V < V

< 16V,

S

0.4 2
(external loads)
T

min

Switch OFF time for the definitionof tr, tf see

≥20⋅

R

C

⋅

KO

K-Kline

1.3 3
FIG. 1

Switch ON time 9V < VS< 16V,

1.3 3 µs
(external loads)
Tmin≥20⋅R

Standby reaction time VTX = 0V, IK≥7mA

KO

C

⋅

K-Kline

10

20

VLI = 0V, 9V < VS < 16V

t

r=RLO,RX

see FIG. 2

andinternal impedance C

extRX, LO

⋅(C

LO,RX+CextRX,LO

)⋅ 1.38.

, RLO,RRX for rise time.

LO,RX

20

SB

40

reaction time.

s

µ

s

µ

s

µ

s

µ

FUNCTIONAL DESCRIPTION

The L9613B is a monolithic bus driver designedto provide bidirectional serial communication in automo­tive applications.

The device provides a bidirectional link, called K, to the V
separate comparator L which is also able to be linked to the V

related diagnosis bus. It also includes a

Bat

bus. The input TX and output RX of K

Bat

are related to VCC with her integrated pull up resistances. Also the L comparator output LO has a pull
up resistanceconnectedto VCC.

All VBat bus defined inputs LI and K have supply voltage dependent thresholds together with sufficent
hysteresis to suppress line spikes. These pins are protected against overvoltages, 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 behaviour of the internal pull up resistances. The thermal shut down function
switches OFF the K output if the chip temperatureincreases above the thermalshut down threshold. To
reactivate K again the chip temperaturemust decrease below the K switch ON temp. To achieve no fault
for VS undervoltage 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. Supressing 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

≤ 1µA during system depowering VCC

SB typ

≤0.5V makethis devicehigh efficient for automotivebus system.
After wake up of the system from SB condition the first output signal will have an additional delay time

td

≤ 5µs.

typ

The typical output voltage behaviour for the K, LO, RX outputs as a function of the output current is
shown in Fig.5. Fig.6 shows a waveform of the output signal when the low level changes from R
to I

⋅ 2 ⋅ RON+UBEstate. This variation occurs due to too low output current or after a negative tran-

OUT

ON

⋅ I

OUT

sient forced to the output or to the supplyvoltage line.

4/10

Figure 1. Input to output timings and output pulse shape

V

IN

V

OUT

80% 80%

L9613B

t

20%

t

OFF

Figure 2. Standby reaction time.

5V

VCC

0V

80%

VK

20%

td

SB

ON

VLO

VCC
80%

20%

t

r

td

SB

OFF

t

f

t

ON

t

td

SB

ON

5/10

L9613B

Figure 3. Output characteristicsat K, LO, RX.

I

OUT

I

OUT

MIN

N
O
S

D

R

V

OUT

I

=

R

OUT DSON

*

protection diode

V

Figure 4. Output signal shape relatedto outputcurrent.

V

IN

V

OUT

I

OUT

R+U

2

* * DSON

OUT

*

RI

DSON

BE

I

OUT

I

>

OUT

MIN

OUT

′<I

I

OUT

I

=

OUT DSON

OUT

1

MIN

2

**

I

OUT

+U

R

BE

V

OUT

t

>

I

OUT

MIN

t

6/10

Figure 5. Standby current consumption.

IS

SB

100µA

50µA

L9613B

Ω

k

0

≈ 5

R

Figure 6. ApplicationCircuit.

VS

510

0.4Ω

Ω

Diagnostic
Tester

K

L

KLine

40V

R

KO

12V 16V

VS

IK

K

C

K

IK

SC

T

jMON

OFF

RTX RLO RRX

­+

1,75V

-

LI

ILI

+

-

+

VS

VCC

TX

RX

LO

GND

I/O

I/O

I/O

5V

VCC

uP

VDD

ECU1

LLine

K

C

K

LI

ECU2

7/10

L9613B

EMS Performance(ISO 9141 BUS system)
Figure 7.

VS= 12V

=

510

Ω

∆

Signalcomparison

Figure 8.

50

10kHz

∆≤ ± 10%

P

i(mW)

10000

Ω

5000

VS

TX K

U713

VS

RX

U713

K

not incidentpower resistant

1.5nF

136

Ω

68Ω

Probe

NAP - 73

P

i

NAP

40dB

P

=5W

imax

Rhode& Schwartz

SMG

0.1 - 1000MHz

1000

100

1 10 100 1000

incident power resistant

ESD applicationhints

To improve the ESD robustness of this device
above specified ±2KV/HBM external blocking ca­pacitors must be used. Neverthelessthe max. en­ergy which can be clamped by this device should
not exceeds0.2mJ for each pin. An equivalent in­put diagramfor calculation can be seen in fig. 9.

ESD duschargemodel

E

8/10

ESD

1

=

2

C

HBMUESD

2

= 0.2mJ +

1

C

EXT

2

⋅ (45V)

2

Figure 9.

C

HBM

100pF

R

1.5k

HBM

f

(MHz)

Ω

C

ext

45V
45V

≤ 0.2mJ

E

L9613B

DIM.

D (1) 4.8 5.0 0.189 0.197

F (1) 3.8 4.0 0.15 0.157

(1) D and F do not include mold flash or protrusions.Mold flash or

MIN. TYP. MAX. MIN. TYP. MAX.

A 1.75 0.069
a1 0.1 0.25 0.004 0.010
a2 1.65
a3 0.65 0.85 0.026 0.033

b 0.35 0.48 0.014 0.019

b1 0.19 0.25 0.007 0.010

C 0.25 0.5 0.010 0.020

c1 45° (typ.)

E 5.8 6.2 0.228 0.244

e 1.27 0.050

e3 3.81 0.150

L 0.4 1.27 0.016 0.050

M 0.6 0.024

S8°(max.)

potrusions shall not exceed 0.15mm (.006inch).

mm inch

0.065

OUTLINE AND

MECHANICAL DATA

SO8

9/10

L9613B

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of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is
granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are
subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products
are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.

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