HI-3182PSx-N, HI-3185PSx-N ARINC 429 DIFFERENTIAL LINE DRIVER August 2006 GENERAL DESCRIPTION PIN CONFIGURATION 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 functional upgrades of Holt's HI-8382 product, they are also alternate sources for a variety of similar line driver products from other manufacturers. 14 V1 VREF 1 13 CLOCK N/C (See Note * ) 2 12 DATA (B) SYNC 3 11 CB DATA (A) 4 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) 10 BOUT CA 5 9 +V AOUT 6 8 GND -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 + _ FEATURES ARINC 429 DIFFERENTIAL LINE DRIVER ! Low power CMOS TRUTH TABLE ! TTL and CMOS compatible inputs ! Programmable output voltage swing ! Adjustable ARINC rise and fall times SYNC CLOCK DATA(A) DATA(B) AOUT BOUT COMMENTS ! Operates at data rates up to 100 Kbits X L X X 0V 0V NULL ! Overvoltage protection L X X X 0V 0V NULL ! Industrial and Military temperature ranges H H L L 0V 0V NULL H H L H -VREF +VREF LOW H H H L +VREF -VREF HIGH H H H H 0V 0V 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. 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. 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 2VREF. If a value of VREF other than +5V is needed, a separate +5V power supply is required for pin V1. 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 V1, always ensuring that +V is the most positive supply. The -V supply is not critical and can be asserted at any time. With the DATA (A) input at a logic high and DATA (B) input at a logic low, AOUT will switch to the +VREF rail and BOUT will switch to the -VREF 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, ROUT, 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 CA and CB input pins. Typical values for high-speed operation (100KBPS) are CA = CB = 75pF and for low-speed operation (12.5 to 14KBPS) CA = CB = 500pF. +5V VREF DATA (A) +15V V1 SYNC CLOCK INPUTS AOUT +V TO ARINC BUS -V The CA and CB pins swing between +5V and ground allowing the switching of capacitor values with an external singlesupply 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 (125ms). VREF +V DATA (B) CA CB GND BOUT -15V Figure 1. ARINC 429 BUS APPLICATION A OUT CA DATA (A) LEVEL SHIFTER AND SLOPE CONTROL (A) CLOCK 24.5W 13W FA OUTPUT DRIVER (A) CL SYNC LEVEL SHIFTER AND SLOPE CONTROL (B) DATA (B) V1 24.5W 13W FB OUTPUT DRIVER (B) CURRENT REGULATOR Shorted on HI-3185PSx-N GND -V B OUT CB Figure 2. FUNCTIONAL BLOCK DIAGRAM HOLT INTEGRATED CIRCUITS 2 RL HI-3182PSx-N, HI-3185PSx-N PIN DESCRIPTIONS SYMBOL FUNCTION DESCRIPTION VREF ANALOG SYNC INPUT Synchronizes data inputs DATA (A) INPUT Data input terminal A Connection for DATA (A) slew-rate capacitor Ref. voltage used to determine output voltage swing. Pin sources current to allow use of a zener reference. CA INPUT AOUT OUTPUT ARINC output terminal A -V POWER -12V to -15V GND POWER 0.0V +V POWER +12V to +15V BOUT OUTPUT ARINC output terminal B CB INPUT Connection for DATA (B) slew-rate capacitor DATA (B) INPUT Data input terminal B CLOCK INPUT V1 POWER 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 Voltage Reference Input Voltage Range SYMBOL VDIF CONDITIONS For ARINC 429 For Applications other than ARINC See Note: 1 Output Overvoltage Protection See Note: 2 Storage Temperature Range TA TSTG Lead Temperature Junction Temperature UNIT 40 V +10.8 to +16.5 -10.8 to -16.5 +5 ±5% +7 V V V +5 ±5% 1.5 to 6 6 6 V V > GND -0.3 < V1 +0.3 V V VIN Output Short-Circuit Duration Operating Temperature Range MAXIMUM Voltage between +V and -V terminals +V -V V1 VREF OPERATING RANGE High-temp & Military Industrial -55 to +125 -40 to +85 °C °C Ceramic & Plastic -65 to +150 °C Soldering, 10 seconds TJ +275 °C +175 °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, V1 = VREF = +5.0V, TA = Operating Temperature Range (unless otherwise specified). PARAMETER SYMBOL Output Voltage High (Output to Ground) ICCOP (+V) ICCOP (-V) ICCOP (V1) ICCOP (VREF) ISC (+V) ISC (-V) IOHSC IOLSC IIH IIL VIH VIL VOH Output Voltage Low (Output to Ground) Supply Current +V (Operating) Supply Current -V (Operating) Supply Current V1 (Operating) Reference Pin Current VREF (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 Null Input Capacitance CONDITION No Load MIN TYP (0 - 100KBPS) No Load (0 - 100KBPS) No Load (0 - 100KBPS) No Load, VREF = 5V (0 - 100KBPS) Short to Ground (See Note: 1) Short to Ground (See Note: 1) Short to Ground VMIN=0 (See Note: 2) VMIN=0 (See Note: 2) Short to Ground MAX UNITS +16 -16 -1.0 mA mA -0.4 500 µA -0.15 mA 150 mA -150 mA -80 +80 mA mA 1.0 -1.0 µA µA 2.0 V 0.5 V No Load (0 -100KBPS) +VREF -.25 +VREF +.25 V VOL No Load (0 -100KBPS) -VREF -.25 -VREF +.25 V VNULL CIN No Load (0-100KBPS) -250 +250 mV 15 See Note 1 pF 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, V1 = VREF = +5.0V, TA = Operating Temperature Range (unless otherwise specified). PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS Rise Time ( A OUT , B OUT ) tR C A = C B = 75pF See Figure 3. 1.0 2.0 µs Fall Time ( A OUT , B OUT ) tF C A = C B = 75pF See Figure 3. 1.0 2.0 µs Propagtion Delay Input to Output t PLH C A = C B = 75pF See Figure 3. 3.0 µs Propagtion Delay Input to Output t PHL C A = C B = 75pF See Figure 3. 3.0 µs DATA (B) 0V VREF AOUT 0V 2.0V 0.5V 50% DATA (A) 0V 50% 2.0V 0.5V ADJUST BY CA +4.75V to +5.25V ADJUST BY CA -VREF t PHL +VREF BOUT 0V -VREF 50% 50% t PLH -4.75V to -5.25V ADJUST BY CB -4.75V to -5.25V 2VREF tR +4.75V to +5.25V ADJUST BY CB HIGH DIFFERENTIAL OUTPUT 0V +9.5V to +10.5V NULL (AOUT - BOUT) NOTE: OUTPUTS UNLOADED tF -2VREF LOW Figure 3. SWITCHING WAVEFORMS HOLT INTEGRATED CIRCUITS 4 -9.5V to -10.5V HI-3182PSx-N, HI-3185PSx-N ADDITIONAL PIN CONFIGURATIONS (See page 1 for 14-Pin Small Outline SOIC) HI-3182PSx-N VREF - 1 16 - V1 GND (See Note * ) - 2 15 - N/C SYNC - 3 14 - CLOCK DATA(A) - 4 13 - DATA(B) CA - 5 12 - CB AOUT - 6 11 - BOUT -V - 7 10 - N/C GND - 8 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 Tin / Lead (Sn / Pb) Solder Blank 100% Matte Tin (Pb-free, RoHS compliant) F PART NUMBER TEMPERATURE RANGE FLOW BURN IN I -40°C TO +85°C I NO T -55°C TO +125°C T NO PART NUMBER PACKAGE DESCRIPTION OUTPUT SERIES RESISTANCE FUSE 3182PS 16 PIN PLASTIC SMALL OUTLINE - WB (SOIC) 37.5 Ohms Yes 3185PS 14 PIN PLASTIC SMALL OUTLINE - NB (SOIC) 37.5 Ohms No Legend: NB WB - Narrow Body - Wide Body HOLT INTEGRATED CIRCUITS 5 HI-318xPSx-N PACKAGE DIMENSIONS inches (millimeters) HI-3182PSx-N 16-PIN PLASTIC SMALL OUTLINE (SOIC) - WB (Wide Body) .0105 ± .0015 (.2667 ± .0381) .405 ± .008 (10.287 ± .203) .4065 ± .0125 (10.325 ± .318) Package Type: 16HW .295 ± .004 (7.493 ± .102) Top View Detail A .090 ± .010 (2.286 ± .254) 0° to 8° .050 ± .010 (1.270 ± .254) .0165 ± .0035 (.4191 ± .0889) .033 ± .017 (.838 ± .432) .0025 ± .0015 (.0635 ± .0381) Detail A HI-3185PSx-N 14-PIN PLASTIC SMALL OUTLINE (SOIC) - NB (Narrow Body) .00865 ± .00115 (.220 ± .029) .3406 ± .0039 (8.651 ± .099) .236 ± .008 (6.00 ± .20) Top View .0165 ± .0035 (.419 ± ..089) Package Type: 14H 14HN .1535 ± .0035 (3.899 ± .089) Detail A .061 ± .007 (1.549 ± .178) 0°° to 8°° .050 ± .010 (1.270 ± .254) .033 ± .017 (.838 ± .432) HOLT INTEGRATED CIRCUITS 6 Detail A .0069 ± .0029 (.175 ± .074)