ST L9613 User Manual

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

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

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