DEI COMPONENTS/ASIC/LIGHTNING PROTECTION

BD429
Line driver, 1 channel, 37.5 Ohm, Industrie Standard, Drives Full ARINC 429 Load
DEI1070A
Line driver, 1 channel, 37.5 Ohm, Drives Full ARINC 429 Load
DEI1071A
Line driver, 1 channel, 10 Ohm, Drives Full ARINC 429 Load
DEI1072A
Line driver, 1 channel, 0 Ohm, Drives Full ARINC 429 Load
DEI3182A
Line driver, 1 channel, RM 3182A replacement
DEI1170A
Line driver, 1 channel, Tristate,  MLPQ package
DEI1270A
Line driver, 2 channels,  MLPQ package
DEI5070/1/2
Line driver, 1 channel, 7,5 – 27,5 ou 37,5 Ohms,  operates from+/- 5V power supply
DEI 5270
Line driver, 2 channels, MLPQ package, operates from+/- 5V power supply
DEI5090
Line driver, 1 channel, 5 Ohms or 37,5 Ohms, operates from single + 3.3V power supply
DEI5290
Line driver, 2 channels, 5 Ohms or 37,5 Ohms, operates from single + 3.3V power supply

Line driver selection list

DEI3283
ARINC 429 receiver, 2 channels, RM 3283 replacement
DEI1041
ARINC 429 receiver, 1 channel
DEI 1044A/1045A
ARINC 429 receiver, 4 channels, DEI 1044A has TTL/CMOS test inputs
DEI 1046A
ARINC 429 receiver, 8 channels, TTL/CMOS test inputs

Receivers selection list

DEI 1016A
Industry standard, 2Rx – 1Tx, +5V supply operation
DEI 1116
2Rx – 1Tx, +3.3V or +5V  supply operation
DEI 1084
Enhanced transceiver, 2Rx – 1Tx, label recognition, +3.3V or +5V supply operation, HI3584 &HI8584 Pin compatible
DEI 3093
New transceiver, 2Rx – 1Tx, Line diver included, label recognition,  SPI interface to host, single +3.3V, HI3593 pin compatible
Transceivers selection list

Discret to Digital with parallel outputs

DEI1026A
Discrete to Digital, 6 Open/GND inputs, parallel outputs
DEI1054
Discrete to Digital, 6 28V/Open inputs, parallel outputs
DEI1166
Discrete to Digital, 8 Open/GND inputs, parallel outputs
DEI1198
Discrete to Digital, 8 Open/GND inputs, parallel outputs, Lightning protection > 1600V with external 3K Ohm  resistor, DEI 1166 pin to pin compatible

Discret to Digital with serial outputs

DEI1066
Discrete to Digital, 8 Open/GND inputs, serial output
DEI1160
Discrete to Digital, 8 programmable inputs Open/GND, 28V/Open (or 28V/GND), serial output
DEI1282
Discrete to Digital, 8 individually configurable Open/GND or 28V/Open inputs (or 28V/GND), serial output, Lightning protection up to 600V, BIT Built-in-test, analog supply voltage : 12 to 16.5V (VDD).

DEI1284
Discrete to Digital, 8 individually configurable Open/GND or 28V/Open inputs (or 28V/GND), serial output, Lightning protection up to 600V with external 3K Ohm resistor, BIT Built-in-test, analog supply voltage : 12 to 16.5V (VDD).

DEI1184
Discrete to Digital, 8 individually configurable Open/GND or 28V/Open inputs (or 28V/GND), serial output, Lightning protection up to 600V with external 3K Ohm resistor, analog supply voltage : 15V (VDD).

DEI1188
Discrete to Digital, 8 Open/GND inputs, serial output, Lightning protection up to 500V with external 3K Ohm resistor

Discrete to Digital selection list

Voltage Clamping Circuit

DEI1028 Dtasheet

DEI1090  LED Driver

The DEI1090 device is a 16 pin bipolar integrated circuit designed to drive nine LEDs and provide Pulse Width Modulated (PWM) dimming control according to the luminance curve of incandescent lamps. The device squares the analog control input and produces a PWM waveform used to enable or disable the current outputs. The LED brightness is controlled by the PWM duty cycle. All nine LEDs are driven at the same adjustable drive current. Drivers can be cascaded to synchronously drive additional LED groups. The dimming control input may be a DC or AC voltage.

DEI components are lightning protected up to Level 3 (300V and 600V) without external resistor.

The new composite Aircraft as Airbus A350, require higher levels of protection  (Level 5 / Waveform 5A).

If it is easy to add an external resistor for high impedance I/O components, it is more problematic for ARINC 429 line driver or Discret to Digital.
The use of high power TVS poses problems of size, weight, capacitance and reliability.
DEI has just developed a new component; the DEI 1604 act as a current limiter when a lightning strike occurs. You just need to add a small TVS to ensure the voltage protection.
The DEI 1604 is a bidirectional component, consisting of 2 JFETs in series using SiC (Silicon Carbide) technology that will limit the current.

Voltage protection up to 1600V
Waveform 5A : 1500V/15A, 500V/500A, 300V/300A, 200V/200A, 100V/100A
Waveform 3 : 1500V/60A, 600V/24A, 250V/10A, 100V/4A
Waveform 2 : 1600V/107A, 750V/50A, 250V/10A, 100V/4A
Sic JFET Transistors  : 1,7 Ohm at +85°C
Nominal current = 450mA
12L DFN package(6 x 7.7mm)                                                                                              SBM – New lightning protection : View article
Operating temperature : -40°C to +85°C
Internal 115VAC fuse for wiring errors protection

mixed-signal ASIC development

DEI is a fabless semiconductor manufacturer that supplies a select offering  of mixed-signel ASICs and analog arrays.

DEI is specialized in hard-to-find technologies like high voltage, trailing edge/ obsolete replacement, RF.

Custom Circuit Process Technology :
Bipolar (20V, 37V, 60V)
High Speed Bipolar ( ft= 18-28GHz)
BiCMOS/CMOS (0.18µm, 0.35µm, 0.6µm, 0.8µm, 1.5µm)
SiGe BiCMOS ( 0.35µm)(ft=35-62 GHz)
DIMOS (320V, 650V)
SiC  (Best 1600V)

DEI components have a 10 years minimum availibility.

700 series Bipolar Semi-Custom ASIC

3 – 4 weeks to ceramic prototypes from layout completion.
The ideal solution in case of component obsolescence.
20V Bipolar Analog Array
Single level Metal Customized
NRE between $30K to $70K.
Standard or Custom packages.
NPN Transistors : Typical Beta = 200 ; fT = 800MHz
Large NPN Transistors (200 mA)
PNP Transistors : Beta = 40 to 90 ; fT = 15MHz