hs-3182

March 1997

HS-3182

ARINC 429 Bus Interface Line Driver Circuit

Features

•TTL and CMOS Compatible Inputs

•Adjustable Rise and Fall Times via Two External Capacitors

•Programmable Output Differential Voltage via V REF Input

•Operates at Data Rates Up to 100 Kilobits/Sec

•Output Short Circuit Proof and Contains Over-Voltage Protection •Outputs are Inhibited (0 Volts) If DATA (A) and DATA (B) Inputs are Both in the “Logic One” State •DATA (A) and DATA (B) Signals are “AND’d” with Clock and Sync Signals •Full Military Temperature Range

Description

The HS-3182 is a monolithic dielectrically isolated bipolar differ-ential line driver designed to meet the specifications of ARINC 429. This Device is intended to be used with a companion chip,HS-3282 CMOS ARINC Bus Interface Circuit, which provides the data formatting and processor interface function.

All logic inputs are TTL and CMOS compatible. In addition to the DATA (A) and DATA (B) inputs, there are also inputs for CLOCK and SYNC signals which are AND’d with the DATA inputs. This feature enhances system performance and allows the HS-3182 to be used with devices other than the HS-3182.Three power supplies are necessary to operate the HS-3182:+V = +15V ± 10%, -V = -15V ± 10%, and V 1 = 5V ± 5%. V REF is used to program the differential output voltage swing such that V OUT (DIFF) = ± 2V REF . Typically, V REF =V 1 = 5V ± 5%, but a separate power supply may be used for V REF which should not exceed 6V.

The driver output impedance is 75Ω ± 20% at 25o C. Driver output rise and fall times are independently programmed through the use of two external capacitors connected to the C A and C B inputs. Typical capacitor values are C A = C B =75pF for high-speed operation (100KBPS), and C A = C B =300pF for low-speed operation (12 to 14.5KBPS). The out-puts are protected against over-voltage and short circuit as shown in the Block Diagram. The HS-3182 is designed to operate with a case temperature range of -55o C to +125o C,or 0o C to +70o C.

Pinouts

HS-3182 (SBDIP)

TOP VIEW

HS-3182 (CLCC)TOP VIEW

Ordering Information

PACKAGE TEMPERATURE

RANGE PART NUMBER PKG. NO SBDIP

-40o C to +85o C HS1-3182-9+D16.3-55o C to +125o C

HS1-3182-8D16.3SMD#-55o C to +125o C 5962-8687901EA D16.3CLCC -55o C to +125o C HS4-3182-8J28.A SMD#

-55o C to +125o C

5962-86879013A

J28.A

TRUTH TABLE

SYNC CLK DATA (A)DATA (B)A OUT B OUT COMMENTS

X L X X 0V 0V Null L X X X 0V 0V Null H H L L 0V

0V

Null H H L H -V REF +V REF Low H H H L +V REF -V REF High H

H

H

H

0V

0V

Null

1415169131211101234

576

8

V REF GND SYNC DATA (A)C A A OUT GND -V V 1CLK DATA (B)C B B OUT NC +V

NC 2324252221201911

321

41415161718

1213282726

10

567

NC DATA (A)

NC NC C A

NC NC CLK NC DATA (B)C B NC NC NC

N C

A O U T

-V

G N D

+V

N C

B O U T

S Y N C

G N D

N C

V R E F

V 1

N C

N C

FN2963.1

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.1-888-INTERSIL or 321-724-7143|Intersil (and design) is a trademark of Intersil Americas Inc.

Absolute Maximum Ratings Thermal Information

Voltage Between +V and -V Terminals . . . . . . . . . . . . . . . . . . . 40V V1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V V REF. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V Logic Input Voltage. . . . . . . . . . . . . . . . . . . .GND -0.3V to V1 +0.3V ESD Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Class 1 Output Short Circuit Duration. . . . . . . . . . . . . . . . . . . . . See Note 1 Output Over-Voltage Protection. . . . . . . . . . . . . . . . . . . See Note 2 Recommended Operating Conditions

Operating Voltage

+V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+15V ± 10% -V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -15V ± 10% V1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5V ± 5% V REF (For ARINC 429). . . . . . . . . . . . . . . . . . . . . . . . . . .5V ± 5% Operating Temperature Range

HS-3182-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0o C to +70o C HS-3182-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-55o C to +125o C Thermal Resistance (Typical)θJAθJC SBDIP Package. . . . . . . . . . . . . . . . . .75o C/W18o C/W CLCC Package . . . . . . . . . . . . . . . . . .60o C/W14o C/W Storage Temperature Range . . . . . . . . . . . . . . . . .-65o C to +150o C Maximum Junction Temperature. . . . . . . . . . . . . . . . . . . . . .+175o C Maximum Lead Temperature (Soldering 10s). . . . . . . . . . . .+300o C Die Characteristics

Transistor Count . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

NOTES:

1.Heat sink may be required for 100K bits/s at +125o C and output short circuit at +125o C.

2.The fuses used for output over-voltage protection may be blown by a fault at each output of greater than ± 6.5V relative to GND. CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.

DC Electrical Performance Specifications

DC PARAMETER SYMBOL

(NOTE 1)

CONDITIONS MIN MAX UNITS

Supply Current +V (Operating)I CCOP (+V)No Load (0-100K bits/s)-16mA Supply Current -V (Operating)I CCOP (-V)No Load (0-100K bits/s)-16-mA Supply Current V1 (Operating)I CCOP (V1)No Load (0-100K bits/s)-975µA Supply Current V REF (Operating)I CCOP (V REF)No Load (0-100K bits/s)-1.0-mA Logic “1” Input Voltage V IH 2.0-V Logic “0” Input Voltage V IL-0.5V

Output Voltage High (Output to GND)V OH No Load (0-100K bits/s)V REF

(-250mV)

V REF (+250mV)

Output Voltage Low (Output to GND)V OL No Load (0-100K bits/s)-V REF

(-250mV)

-V REF (+250mV)

Output Voltage Null V NULL No Load (0-100K bits/s)-250+250mV Input Current (Input Low)I IL-20-µA Input Current (Input High)I IH-10µA Output Short Circuit Current

(Output High)

I OHSC Short to GND--80mA

Output Short Circuit Current

(Output Low)

I OLSC Short to GND80-mA Output Impedance Z O T A = +25o C6090ΩNOTE:

1.+V = +15V ± 10%, -V = -15V ± 10%, V1 = V REF = 5V ± 5%, unless otherwise specified T A = 0o C to +70o C for HS-3182-5 and

T A = -55o C to +125o C for HS-3182-8.AC Electrical Performance Specifications

AC PARAMETER SYMBOL

(NOTE 1)

CONDITIONS MIN MAX UNITS

Rise Time (A OUT, B OUT)t R C A = C B = 75pF, Note 212µS

(at T A = -55o C Only)0.9 2.4µS

C A = C B = 300pF, Note 239µS Fall Time (A OUT, B OUT)t F C A = C B = 75pF, Note 312µS

(at T A = -55o C Only)0.9 2.4µS

C A = C B = 300pF, Note 339µS Propagation Delay Input to Output t PLH C A = C B = 75pF, No Load- 3.3µS Propagation Delay Input to Output t PHL C A = C B = 75pF, No Load- 3.3µS

NOTES:

1.+V = +15V, -V = -15V, V1 = V REF = 5V, unless otherwise specified T A = 0o C to +70o C for HS-3182-5 and T A = -55o C to +125o C for

HS-3182-8.

2.t R measured 50% to 90% times 2, no load.

3.t F measured 50% to 10% times 2, no load.

Electrical Performance Specifications

PARAMETER SYMBOL

(NOTE 1)

CONDITIONS MIN MAX UNITS

Input Capacitance C IN T A = +25o C-15pF

Supply Current +V (Short Circuit)I SC (+V)Short to GND, T A = +25o C-150mA Supply Current -V (Short Circuit)I SC (-V)Short to GND, T A = +25o C-150-mA

NOTE:

1.The parameters listed in Table 3 are controlled via design or process parameters and are not directly tested. These parameters are char-

acterized upon initial design and after major process and/or design changes affecting these parameters.

Power Specifications Nominal Power at +25o C, +V = +15V, -V = -15V, V1 = V REF = 5V, Notes 1, 3

DATA RATE

(K BITS/s)LOAD+V V-V1CHIP POWER POWER DISSIPATION

IN LOAD

0-100No Load11mA-10mA600µA325mW0

12.5-14Full Load, Note 224mW-24mW600µA660mW60mW

100Full Load, Note 246mW-46mW600µA 1 Watt325mW

NOTES:

1.Heat sink may be required for 100K bits/s at +125o C and output short circuit at +125o C.

Thermal characteristics:T(CASE) = T(Junction) - θ(Junction - Case) P(Dissipation).

Where:T(Junction Max) = +175o C

θ(Junction - Case) = 10.9o C/W (6.1o C/W for LCC)

θ(Junction - Ambient) = 73.5o C/W (54.0o C/W for LCC)

2.Full Load for ARINC 429:R L = 400Ω and C L = 30,000pF in parallel between A OUT and B OUT (see block diagram).

3.Output Over-Voltage Protection:The fuses used for output over-voltage protection may be blown by a fault at each output of greater than

±6.5V relative to GND.

Driver Waveforms

NOTES:t R measured 50% to 90% times 2

t F measured 50% to 10% times 2V IH = 5V V OL = -4.75V to -5.25V V IL = 0V

V OH = 4.75V to 5.25V

When the Data (A) input is in the Logic One state and the Data (B)input is in the Logic Zero state, A OUT is equal to V REF and B OUT is equal to -V REF . This constitutes the Output High state. Data (A) and Data (B) both in the Logic Zero state causes both A OUT and B OUT to be equal to 0V which designates the output Null state. Data (A) in the Logic Zero state and Data (B) in the Logic One state causes A OUT to be equal to -V REF and B OUT to be equal to V REF which is the Output Low state.

Burn-In Schematic

NOTES:R = 400Ω ± 5%

C 1 = 0.03µF ± 20%C 2 = C 3 = 500pF, NPO +V = +15.5V ± 0.5V -V = -15.5V ± 0.5V V 1 = +5.5V ± 0.5V

A 0.0µF decoupling capacitor is required on each of the three

supply lines (+V, -V and V 1) at every 3rd Burn-In socket.

Ambient Temp. Max. = +125o C.Package = 16 Lead Side Brazed DIP.

Pulse Conditions = A & B = 6.25kHz ± 10%. B is delayed one-half cycle and in sync with A.V IH = 2.0V Min.V IL = 0.5V Max.

DATA (A) 0V

DATA (B) 0V

V REF

A OUT 0V

B OUT 0V

t PHL

-V REF

A OUT -

B OUT

0V

DIFFERENTIAL

OUTPUT

50%

50%

50%

50%

t PLH

t R

t F

2V REF

-V REF V REF

HIGH

NULL

LOW

-2V REF

ADJ. BY C B

ADJ. BY C A

5V 0V 5V 0V

+4.75V TO +5.25V

-4.75V TO -5.25V

+4.75V TO +5.25V

-4.75V TO -5.25V +9.5V TO +10.5V

NOTE: OUTPUTS UNLOADED

-9.5V TO -10.5V

V 1

DATA (B)

+V

C 1

GND

-V

DATA (A)

161514

131211109

1

2

34567

8

C 3

C 2

R HS-3182V IL

V IH

V IH

V IL

A

B