HI-8586PSI Datasheet HI-8586PSI | P1-P3

( 8585 Rev. O) 02/17DS

SLP 1.5

TX0IN

TX1IN

GND

V-

TXAOUT

TXBOUT

V+

SYMBOL

LOGIC INPUT

POWER

OUTPUT

POWER

FUNCTION

CMOS OR TTL, V+ IS OK

CMOS OR TTL

GROUND

-12 TO -15 VOLTS

LINE DRIVER TERMINAL A

LINE DRIVER TERMINAL B

+12 TO +15 VOLTS

DESCRIPTION

TX1IN

TX0IN SLP1.5 TXAOUT TXBOUT SLOPE

-5V

N/A

10 sm

1.5 sm

10 sm

1.5 sm

N/A

February 2017

ARINC 429

Line Driver

HI-8585, HI-8586

DESCRIPTION

! Direct ARINC 429 line driver interface

in a small package

On-chip band-gap reference to set

output levels

On-chip line driver slope control and

selection by logic input

Low current 12 to 15 volt supplies

CMOS / TTL logic pins

Plastic and ceramic package options -

surface mount and DIP

Thermally enhanced SOIC packages

Industrial & extended temperature

ranges

FEATURES

PIN CONFIGURATION

SUPPLY VOLTAGES

FUNCTION TABLE

The HI-8585 and HI-8586 are CMOS integrated circuits

designed to directly drive the ARINC 429 bus in an 8-pin

package. Two logic inputs control a differential voltage

between the output pins producing a +10 volt One, a

-10 volt Zero, and a 0 volt Null.

The CMOS/TTL control inputs are translated to ARINC

specified amplitudes using on board band-gap reference.

A logic input is provided to control the slope of the differen-

tial output signal. Timing is set by on-chip resistor and

capacitor and tested to be withinARINC requirements.

The HI-8585 has 37.5 ohms in series with each line driver

output. The HI-8586 provides the option to bypass part of

the output resistance so that series resistance can be

used in external protection circuitry.

The HI-8585 or the HI-8586 along with the HI-8588 or the

Hi-8591 line receivers offer the smallest options available

to get on and off the ARINC bus.

PIN DESCRIPTION TABLE

V+ = 12V to 15V

V- = -12V to -15V

SLP1.5

TX0IN

TX1IN

GND

V-

TXAOUT

TXBOUT

V+

HOLT INTEGRATED CIRCUITS

www.holtic.com

APPLICATION INFORMATION

Figure 1 is a block diagram of the line driver. The +5V and

-5V levels are generated internally using a on-chip band-

gap reference. Currents for slope control are set by zener

voltages across on-chip resistors.

The TX0IN and TX1IN inputs receive logic signals from a

control transmitter chip such as the HI-6010, HI-3282 or

HI-8282. TXAOUT and TXBOUT hold each side of the

ARINC bus at Ground until one of the inputs becomes a

One. If for example TX1IN goes high, a charging path is

enabled to 5V on an “A” side internal capacitor while the

“B” side is enabled to -5V. The charging current is se-

lected by the SLP1.5 pin. If the SLP1.5 pin is high, the

capacitor is nominally charged from 10% to 90% in 1.5µs.

If SLP1.5 is low, the rise and fall times are 10µs.

A unity gain buffer receives the internally generated slopes

and differentially drives the ARINC line. Current is limited

by the series output resistors at each pin. There are no

fuses at the outputs of the HI-8585 as exists on the

Hi-8382.

The HI-8585 has 37.5 ohms in series with each output and

the HI-8586 has 2 ohms in series with each output. The

HI-8586 is for applications where external series resis-

tance is required, typically for lightning protection devices.

Both the HI-8585 and HI-8586 are built using high-speed

CMOS technology. Care should be taken to ensure the

V+ and V- supplies are locally decoupled and that the

input waveforms are free from negative voltage spikes

which may upset the chip’s internal slope control circuitry.

Figure 2 shows a possible application

of the HI-8585/86 interfacing an ARINC

transmit channel from the HI-6010.

HI-8585, HI-8586

FUNCTIONAL DESCRIPTION

TXAOUT

CURRENT

CONTROL

-5V

ONE

NULL

ZERO

CONTROL

LOGIC

TXBOUT

CURRENT

CONTROL

-5V

SLP1.5

ESD

PROTECTION

AND

VOLTAGE

TRANSLATION

TX0IN

TX1IN

FIGURE 1 - LINE DRIVER BLOCK DIAGRAM

HI-8585 = 37.5 OHMS

HI-8586 = 2 OHMS

HI-8585 = 37.5 OHMS

HI-8586 = 2 OHMS

ONE

NULL

ZERO

CONTROL

LOGIC

“A” SIDE

“B” SIDE

GND

TXBOUT

TXAOUT

TX1IN

TX0IN

ARINC

Channel

RINB

RINA

TESTA

TESTB

{

HARDWIRED

DRIVEN FROM LOGIC

ROUTB

ROUTA

VCC

V-

-15V

SLP1.5

TXD0

TXD1

RXD0

RXD1

HI-6010

8 BIT BUS

ARINC

Channel

HI-8588

FIGURE 2 - APPLICATION DIAGRAM

15V

V+

HI-8585

HOLT INTEGRATED CIRCUITS

V+ = +12V to +15V, V- = -12V to -15V, T = Operating Temperature Range (unless otherwise stated)

HI-8585, HI-8586

NOTE: Stresses above absolute maximum

ratings or outside recommended operating

conditions may cause permanent damage to

the device. These are stress ratings only.

Operation at the limits is not recommended.

Voltages referenced to Ground

Supply voltages

V+ .................................................. 20V

V- .................................................. -20V

DC current per input pin ............... +10mA

Power dissipation at 25°C

plastic DIP .......... 1.0W, derate 10mW/°C

ceramic DIP ........ 0.5W, derate 7mW/°C

Solder Temperature (Reflow) .......... 260°C

Storage Temperature ...... -65°C to +150°C

ABSOLUTE MAXIMUM RATINGS

RECOMMENDED OPERATING CONDITIONS

Supply Voltages

V+.................................+11.4V to +16.5V

V-.................................. -11.4V to -16.5V

Temperature Range

Industrial .............-40°C to +85°C

Extended ...........-55°C to +125°C

DC ELECTRICAL CHARACTERISTICS

PARAMETERS SYMBOL TEST CONDITIONS MIN TYP MAX UNITS

Input voltage (TX1IN, TX0IN, SLP1.5)

high V 2.1 - V+ volts

low V - - 0.5 volts

Input current (TX1IN, TX0IN, SLP1.5)

source I V = 0V - - 0.1 A

sink I = 5V - - 0.1 A

ARINC output voltage (Differential)

zero V no load -11.00 -10.00 -9.00 volts

null V no load -0.50 0 0.50 volts

V+ I - 6.0 14.0 mA

V- I -14.0 -6.0 - mA

ARINC output impedence Z

HI-8585 - 37.5 - ohms

HI-8586 - - 2 ohms

IH IN

DIFF0

DIFFN

OUT

one V no load; TXAOUT - TXBOUT 9.00 10.00 11.00 volts

; TXAOUT - TXBOUT

ARINC output voltage (Ref. to GND)

one or zero V no load & magnitude at pin 4.50 5.00 5.50 volts

null V no load -0.25 0 0.25 volts

Operating supply current

DIFF1

DOUT

NOUT

SLP1.5 = V+

TX1IN & TX0IN = 0V: no load

IN & TX1IN = 0V: no loadTX0

HOLT INTEGRATED CIRCUITS

P1-P3 P4-P6 P7-P9

HI-8586PSI

Mfr. #:

Buy HI-8586PSI

Manufacturer:

Description:

ARINC 429 Driver 2TX 100Kbps 8-Pin SOIC N EP

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HI-8586PSI