HI-3182PSx-N, HI-3185PSx-N
August 2006
ARINC 429 DIFFERENTIAL LINE DRIVER
PIN CONFIGURATION
V
REF
1
N/C (See Note * ) 2
SYNC 3
DATA (A) 4
14 V
1
13 CLOCK
12 DATA (B)
11 C
B
10 B
OUT
9 +V
8 GND
GENERAL DESCRIPTION
The HI-3182, and HI-3185 bus interface products are silicon
gate CMOS devices designed as a line driver in accordance with
the ARINC 429 bus specifications. In addition to being func-
tional upgrades of Holt's HI-8382 product, they are also alternate
sources for a variety of similar line driver products from other
manufacturers.
Inputs are provided for clocking and synchronization. These
signals are AND'd with the DATA inputs to enhance system
performance and allow the HI-318X series of products to be
used in a variety of applications. Both logic and synchronization
inputs feature built-in 2,000V minimum ESD input protection as
well as TTL and CMOS compatibility.
The differential outputs of the HI-318X series of products are
programmable to either the high speed or low speed ARINC 429
output rise and fall time specifications through the use of two
external capacitors. The output voltage swing is also adjustable
by the application of an external voltage to the VREF input. A
37.5 ohm resistor is in series with each ARINC output. In
addition the HI-3182 product also has a fuse in series with each
output.
The HI-318X series of line drivers are intended for use where
logic signals must be converted to ARINC 429 levels such as
when using an ASIC, the HI-8584/HI-3282/HI-8282A
ARINC 429 Serial Transmitter/Dual Receiver, the HI-6010
ARINC 429 Transmitter/Receiver or the HI-8783 ARINC
Interface Device. Holt products are readily available for both
industrial and military applications. Please contact the Holt
Sales Department for additional information.
(Top View)
C
A
5
A
OUT
6
-V 7
HI-3185PSx-N
14 - PIN PLASTIC SMALL OUTLINE (SOIC) NB
Note: * Pin 2 is internally not connected
(See Page 5 for HI-3182PSx-N package pin configurations)
FUNCTION
+
_
ARINC 429 DIFFERENTIAL LINE DRIVER
FEATURES
!
Low power CMOS
!
TTL and CMOS compatible inputs
!
Programmable output voltage swing
!
Adjustable ARINC rise and fall times
!
Operates at data rates up to 100 Kbits
!
Overvoltage protection
!
Industrial and Military temperature ranges
TRUTH TABLE
SYNC CLOCK DATA(A) DATA(B) AOUT
X
L
H
H
H
H
L
X
H
H
H
H
X
X
L
L
H
H
X
X
L
H
L
H
0V
0V
0V
-V
REF
+V
REF
0V
BOUT COMMENTS
0V
0V
0V
+V
REF
-V
REF
0V
NULL
NULL
NULL
LOW
HIGH
NULL
(DS3182N Rev. A )
HOLT INTEGRATED CIRCUITS
www.holtic.com
08/06
HI-3182PSx-N, HI-3185PSx-N
FUNCTIONAL DESCRIPTION
The SYNC and CLOCK inputs establish data synchronization
utilizing two AND gates, one for each data input (figure 2).
Each logic input is TTL/CMOS compatible.
Figure 1 illustrates a typical ARINC 429 bus application.
Three power supplies are necessary to operate the HI-318X;
typically +15V, -15V and +5V. The chip also works with ±12V
supplies. The +5V supply can also provide a reference
voltage that determines the output voltage swing. The
differential output voltage swing will equal 2V
REF
. If a value of
V
REF
other than +5V is needed, a separate +5V power supply
is required for pin V
1
.
With the DATA (A) input at a logic high and DATA (B) input at a
logic low, A
OUT
will switch to the +V
REF
rail and B
OUT
will
switch to the -V
REF
rail (ARINC HIGH state). With both data
input signals at a logic low state, the outputs will both switch to
0V (ARINC NULL state).
The driver output impedance, R
OUT
, is nominally 75 ohms.
The rise and fall times of the outputs can be calibrated through
the selection of two external capacitor values that are
connected to the C
A
and C
B
input pins. Typical values for
high-speed operation (100KBPS) are C
A
= C
B
= 75pF and for
low-speed operation (12.5 to 14KBPS) C
A
= C
B
= 500pF.
The C
A
and C
B
pins swing between +5V and ground allowing
the switching of capacitor values with an external single-
supply analog switch.
The ARINC outputs of the HI-3182, are protected by internal
fuses capable of sinking between 800 - 900 mA for short
periods of time (125
m
s).
The Vref pin has an internal pull-up resistor to V+, allowing the
use of a simple external zener diode to set the reference
voltage.
POWER SUPPLY SEQUENCING
The power supplies should be controlled to prevent large
currents during supply turn-on and turn-off. The
recommended sequence is +V followed by V
1
, always
ensuring that +V is the most positive supply. The -V supply is
not critical and can be asserted at any time.
+5V
+15V
V
REF
DATA (A)
V1
SYNC
CLOCK
A
OUT
+V
-V
INPUTS
DATA (B)
CA
CB
GND
TO ARINC BUS
B
OUT
-15V
Figure 1.
ARINC 429 BUS APPLICATION
V
REF
+V
C
A
A
OUT
DATA (A)
LEVEL SHIFTER
AND SLOPE
CONTROL (A)
CLOCK
24.5W
OUTPUT
DRIVER (A)
C
L
SYNC
LEVEL SHIFTER
AND SLOPE
CONTROL (B)
24.5W
OUTPUT
DRIVER (B)
13W
R
L
13W
F
A
F
B
DATA (B)
V
1
CURRENT
REGULATOR
Shorted on
HI-3185PSx-N
GND
-V
C
B
B
OUT
Figure 2.
FUNCTIONAL BLOCK DIAGRAM
HOLT INTEGRATED CIRCUITS
2
HI-3182PSx-N, HI-3185PSx-N
PIN DESCRIPTIONS
SYMBOL
V
REF
SYNC
DATA (A)
C
A
A
OUT
-V
GND
+V
B
OUT
C
B
DATA (B)
CLOCK
V
1
FUNCTION
ANALOG
INPUT
INPUT
INPUT
OUTPUT
POWER
POWER
POWER
OUTPUT
INPUT
INPUT
INPUT
POWER
Synchronizes data inputs
Data input terminal A
DESCRIPTION
Ref. voltage used to determine output voltage swing. Pin sources current to allow use of a zener reference.
Connection for DATA (A) slew-rate capacitor
ARINC output terminal A
-12V to -15V
0.0V
+12V to +15V
ARINC output terminal B
Connection for DATA (B) slew-rate capacitor
Data input terminal B
Synchronizes data inputs
+5V ±5%
ABSOLUTE MAXIMUM RATINGS
All Voltages referenced to GND, TA = Operating Temperature Range (unless otherwise specified)
PARAMETER
Differential Voltage
Supply Voltage
SYMBOL
V
DIF
+V
-V
V
1
V
REF
V
IN
CONDITIONS
Voltage between +V and -V terminals
OPERATING RANGE
MAXIMUM
40
UNIT
V
V
V
V
V
V
V
V
+10.8 to +16.5
-10.8 to -16.5
+5 ±5%
For ARINC 429
For Applications other than ARINC
+5 ±5%
1.5 to 6
+7
6
6
> GND -0.3
< V1 +0.3
Voltage Reference
Input Voltage Range
Output Short-Circuit Duration
Output Overvoltage Protection
Operating Temperature Range
Storage Temperature Range
Lead Temperature
Junction Temperature
See Note: 1
See Note: 2
T
A
T
STG
High-temp & Military
Industrial
Ceramic & Plastic
Soldering, 10 seconds
T
J
-55 to +125
-40 to +85
-65 to +150
+275
+175
°C
°C
°C
°C
°C
Note 1. Heatsinking may be required for continuous Output Short Circuit at +125°C and for 100KBPS at +125°C.
Note 2. The fuses used for Output Overvoltage Protection may be blown by the presence of a voltage at either output that is greater
than ±12.0V with respect to GND. (HI-3182 only)
NOTE: Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings
only. Functional operation of the device at these or any other conditions above those indicated in the operational sections of the specifications
is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
HOLT INTEGRATED CIRCUITS
3
HI-3182PSx-N, HI-3185PSx-N
DC ELECTRICAL CHARACTERISTICS
+V = +15V, -V = -15V, V
1
= V
REF
= +5.0V, T
A
= Operating Temperature Range (unless otherwise specified).
PARAMETER
Supply Current +V (Operating)
Supply Current -V (Operating)
Supply Current
V
1
(Operating)
Reference Pin Current
V
REF
(Operating)
Supply Current +V (During Short Circuit Test)
Supply Current -V (During Short Circuit Test)
Output Short Circuit Current (Output High)
Output Short Circuit Current (Output Low)
Input Current (Input High)
Input Current (Input Low)
Input Voltage High
Input Voltage Low
Output Voltage High (Output to Ground)
Output Voltage Low (Output to Ground)
Output Voltage Null
Input Capacitance
SYMBOL
I
CCOP
(+V)
I
CCOP
(-V)
I
CCOP
(
V
1
)
I
CCOP
(
V
REF
)
I
SC
(+V)
I
SC
(-V)
I
OHSC
I
OLSC
I
IH
I
IL
V
IH
V
IL
V
OH
V
OL
V
NULL
C
IN
No Load
No Load
No Load
CONDITION
(0 - 100KBPS)
(0 - 100KBPS)
(0 - 100KBPS)
MIN
-16
TYP
MAX UNITS
+16
500
mA
mA
µA
mA
mA
mA
-80
mA
mA
1.0
µA
µA
V
0.5
V
V
V
mV
pF
+V
REF
+.
25
-V
REF
+.
25
+250
No Load,
V
REF = 5V (0 - 100KBPS)
Short to Ground
Short to Ground
Short to Ground
Short to Ground
(See Note: 1)
(See Note: 1)
-1.0
-150
+80
-1.0
2.0
-0.4
-0.15
150
V
MIN
=0 (See Note: 2)
V
MIN
=0 (See Note: 2)
No Load
No Load
No Load
See Note 1
(0 -100KBPS)
(0 -100KBPS)
(0-100KBPS)
+V
REF
-.
25
-V
REF
-.
25
-250
15
Note 1. Not tested, but characterized at initial device design and after major process and/or design change which affects this parameter.
Note 2. Interchangeability of force and sense is acceptable.
AC ELECTRICAL CHARACTERISTICS
+V = +15V, -V = -15V, V
1
= V
REF
= +5.0V, T
A
= Operating Temperature Range (unless otherwise specified).
PARAMETER
Rise Time (
A
OUT
,
B
OUT
)
Fall Time (
A
OUT
,
B
OUT
)
Propagtion Delay Input to Output
Propagtion Delay Input to Output
SYMBOL
t
R
t
F
t
PLH
t
PHL
CONDITION
C
A
=
C
B
= 75pF
C
A
=
C
B
= 75pF
C
A
=
C
B
= 75pF
C
A
=
C
B
= 75pF
See Figure 3.
See Figure 3.
See Figure 3.
See Figure 3.
MIN
1.0
1.0
TYP
MAX UNITS
2.0
2.0
3.0
3.0
µs
µs
µs
µs
DATA (A) 0V
DATA (B) 0V
V
REF
50%
50%
ADJUST
BY
C
A
2.0V
0.5V
2.0V
0.5V
+4.75V to +5.25V
A
OUT
0V
ADJUST
BY
C
A
-V
REF
50%
50%
-4.75V to -5.25V
ADJUST
BY
C
B
ADJUST
BY
C
B
t
PHL
+V
REF
+4.75V to +5.25V
-4.75V to -5.25V
HIGH
NULL
B
OUT
0V
-V
REF
t
PLH
t
R
DIFFERENTIAL
OUTPUT 0V
2V
REF
+9.5V to +10.5V
(
A
OUT -
B
OUT
)
NOTE: OUTPUTS UNLOADED
t
F
-2V
REF
LOW
-9.5V to -10.5V
Figure 3.
SWITCHING WAVEFORMS
HOLT INTEGRATED CIRCUITS
4
HI-3182PSx-N, HI-3185PSx-N
ADDITIONAL PIN CONFIGURATIONS
(See page 1 for 14-Pin Small Outline SOIC)
HI-3182PSx-N
V
REF
- 1
GND (See Note * ) - 2
SYNC - 3
DATA(A) - 4
C
A
- 5
A
OUT
- 6
-V - 7
GND - 8
16 - V
1
15 - N/C
14 - CLOCK
13 - DATA(B)
12 - C
B
11 - B
OUT
10 - N/C
9 - +V
Notes: * Pin 2 may be left floating
16 - PIN PLASTIC SMALL OUTLINE (SOIC)
ORDERING INFORMATION
HI - 318xPS x x - N
PART
NUMBER
LEAD
FINISH
Blank
F
PART
NUMBER
Tin / Lead (Sn / Pb) Solder
100% Matte Tin (Pb-free, RoHS compliant)
TEMPERATURE
RANGE
FLOW
BURN
IN
I
T
PART
NUMBER
3182PS
3185PS
Legend:
NB
WB
-40°C TO +85°C
-55°C TO +125°C
PACKAGE
DESCRIPTION
I
T
NO
NO
OUTPUT SERIES
RESISTANCE
FUSE
16 PIN PLASTIC SMALL OUTLINE - WB (SOIC)
14 PIN PLASTIC SMALL OUTLINE - NB (SOIC)
- Narrow Body
- Wide Body
37.5 Ohms
37.5 Ohms
Yes
No
HOLT INTEGRATED CIRCUITS
5
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