An Overview of Intersil’s CAN Bus
Transceiver Family
…when failure is not an option!!
Allan Robinson
Intersil Applications Engineer, Rad Hard Space Product Line
2017
TM
Presentation Agenda
• Review of the ISL7202xSEH (legacy) Rad Hard 3.3V CAN Bus Transceiver
Family
• Introduce the ISL7202xASEH (version “A”) Rad Hard 3.3V CAN Bus
Transceiver Family (Release Q3 2017)
– Medium Speed Optimized for 500kbps Data Rates
– Slow Speed Optimized for 250kbps Data Rates
– Improved Driver Skew Performance
• Introduce the Intersil Radiation Tolerant Plastic Products Initiative for Low
Cost, Low Orbit, Short Duration Satellite/Space Applications
• Cover a few of our newly released / in-development Rad Hard Signal Chain
Products
2
June 2017
Intersil Confidential Information
ISL7202xSEH (legacy): Radiation Hardened 3.3V
CAN Bus Transceiver Family
ISL7202xSEH (legacy): RH 3.3V CAN Bus Transceiver Family
• Released the First Class V Rad Hard CAN Bus 3.3V Transceiver Family in
March 2016
• Standards:
– ISO11898-2
– ECSS–E-ST-50-15C (May 1, 2015)
• Intersil worked with ESA and Airbus during development
• Three Parts in the Family (SMD 5962-15228)
– All parts have the same driver and receiver circuitry
ISL72026SEH
Listen Mode & Loopback
4
ISL72027SEH
8
1
D
GND
CANH
7
2
3
VCC
CANL
6
4
R
LBK
5
D
2
June 2017
ISL72028SEH
Listen Mode & Split Termination
RS
1
Package = 8 ld. CDFP
Low Power Mode & Split Termination
RS
8
1
D
GND
CANH
7
2
3
VCC
CANL
6
4
R
VREF
5
RS
8
GND
CANH
7
3
VCC
CANL
6
4
R
VREF
5
Intersil Confidential Information
ISL7202xSEH (legacy): RH 3.3V CANbus Transceiver Family
• Three Discrete Programmable Driver Speed
Selections
• Resistor to Ground on the RS pin determines Speed Grade
– RS = 0V (High Speed Mode – 5Mbps)
Typical Driver Rise / Fall Times: 55ns / 25ns
– RS = 10kΩ (Medium Speed – 250kbps)
Typical Driver Rise / Fall Times: 400ns / 300ns
– RS = 50kΩ (Slow Speed - 125kbps)
Typical Driver Rise / Fall Times: 700ns / 650ns
• Drive RS pin HIGH
– ISL72026SEH
Listen Mode: TX Powered Down
Supply Current: 2mA max
– ISL72027SEH
Listen Mode: TX Powered Down
Supply Current: 2mA max
– ISL72028SEH
Shutdown Mode: TX and RX Powered Down
Supply Current: 50µA max
5
June 2017
Intersil Confidential Information
ISL7202xSEH (legacy): RH 3.3V CAN Bus Transceiver Family
26
• LBK Logic Input (Pin 5): ISL72026SEH
– When a “HIGH” level is applied at the LBK pin, the device enters the loopback state.
– The transceiver CANH and CANL pins are disconnected from the bus.
– The driver and receiver circuitry of the transceiver remains active for diagnostic testing of the node (ECU).
• VREF Output (Pin 5) for Split Termination: ISL72027SEH & ISL72028SEH
– Provides a VCC / 2 output voltage for split mode termination.
1
D
2
RS
8
GND
CANH
7
3
VCC
CANL
6
4
R
LBK
5
27 & 28
1
D
2
RS
8
GND
CANH
7
3
VCC
CANL
6
4
R
VREF
5
– Split mode termination technique is shown below. It is used to stabilize the bus voltage at VCC / 2 and prevent if from drifting to high commonmode voltage during periods of inactivity. The technique improves the electromagnetic compatibility of a network.
– Split mode termination is put at each end of the bus.
– CL capacitor filters unwanted high frequency noise to ground. The capacitance value used is dependent on the signaling rate of the network. A
typical value used for a 1Mbps CAN network is 4.7nF, which generates a 3dB point at 1.1Mbps.
6
June 2017
Intersil Confidential Information
ISL7202xSEH (legacy): RH 3.3V CANbus Transceiver Family
Key Performance Parameters
• Data Rates up to 5Mbps
ISO 11898-2
– Specifically designed to meet the 1Mbps signal requirements of ISO11898-2
Compatible
– Good signal quality up to 5Mbps
– CAN-FD (Flexible Data): Anecdotal lab results shows good performance with the data portion of the
digital packet transmitted at 2Mbps
• Driver designed to drive 120 nodes over a Common Mode Voltage Range of -7V to
+12V
• Bus pins can handle fault voltages of +/- 20V (with/without Ion Beam)
• Cold Spare Capable
• Absolute Max VDD Supply Voltage of 5.5V (with/without Ion Beam)
• Radiation Hardened:
– Acceptance tested to LDR of 75krad(Si)
– SEL/B LETTH = 86.4MeV∙cm2/mg
7
June 2017
Intersil Confidential Information
4kV HBM
ISL7202xSEH (legacy): RH 3.3V CANbus Transceiver Family
Driver Output Current vs Differential Output (VOD) Voltage
8
June 2017
Intersil Confidential Information
ISL7202xASEH (version “A”): Rad Hard CAN Bus 3.3V
Transceiver Family
ISL7202xASEH (version “A”): RH 3.3V CANbus Transceiver Family
• Will Release in Q3 2017
– Samples, evaluation boards, and Pspice models are available
• Same in fit, form and function to the ISL7202xSEH (legacy) parts except for:
• Medium Speed supports data rates up to 500kbps vs 250kbps for legacy parts.
• Slow Speed supports data rates up to 250kbps vs 125kbps for legacy parts.
• Medium speed optimized for 500kbps
– Driver skew and rise / fall times for good EMI performance
– Total Loop Delay allows for bus cable length up to 50 meters
• Slow speed optimized for 250kbps
– Driver skew and rise / fall times for good EMI performance
– Total Loop Delay allows for bus cable length up to 150 meters
• Improved driver skew performance in medium and slow speed modes
• Three Parts in the Family (SMD 5962-15228)
–
–
–
–
10
All parts have the same driver and receiver circuitry
ISL72026ASEH = Listen Mode & Loopback
ISL72027ASEH = Listen Mode & Split Termination
ISL72028ASEH = Low Power Mode & Split Termination
June 2017
Intersil Confidential Information
ISL7202xASEH (version A) vs ISL7202xSEH (legacy)
Parameters
11
ISL7202xASEH (version A)
ISL7202xSEH (legacy)
Medium Speed
Slow Speed
Medium Speed
Slow Speed
Data Rate
500kbps
250kbps
250kbps
125kbps
Prop Delay L->H (ns)
350
475
520
850
Prop Delay H->L (ns)
410
550
460
725
Skew (ns)
60
75
60
110
Rise Time (ns)
250
360
400
700
Fall Time (ns)
250
390
300
650
Total Loop Delay (ns)
Dom to Rec
450
575
500
750
Total Loop Delay (ns)
Rec to Dom
380
500
550
850
Max Cable Length (m)
85% sample point
5ns/m cable
50
150
165
400
June 2017
Intersil Confidential Information
Intersil Radiation Tolerant Plastic Products Initiative
Powering the Next Generation of Satellite Constellations
Introduction
• Current Industry Trends and Needs
– Innovation in space is being driven more by private industry giving rise to “the business of space”
– Emergence of mega-constellations by the use of “small–sats” in low earth orbits
• SpaceX, OneWeb, and Google the most notable examples
– Reduce cost to drive reasonable profitability
• Industry Solution
– Migrating from traditional radiation hardened microcircuits to commercial off the shelf (COTS)
• Reduce cost, increase capability by access of modern technology, decrease size (SWaP)
• Industry Misconception
– Limited issues will be encountered when qualifying and operating COTS devices in what is
commonly thought of to be a benign low earth orbit (LEO) space environment.
13
June 2017
Intersil Confidential Information
Program Profile for Next Generation Satellite Constellations
• Program Profile
– Expected Life Cycle ≤ 5 years
• Satellites will be replaced with system upgrades
– Total radiation exposure = 10 - 30krad(Si)
• Margin may be needed, devices may need to meet as high as 60krad(Si)
– SEE expectations = LET of 30 – 43MeV∙cm2/mg
• Non-destructive SEE can be typically handled with redundancy, EDAC, filtering, etc.
– Adds system level design complexity and cost
– May not even be fully effective
• Destructive SEE causes early termination of satellite life cycle
14
June 2017
Intersil Confidential Information
The Need for Radiation Tolerant ICs in Next Generation Constellation
• Cost
– Using COTS devices require up-screening before they are found suitable for space applications
• The most notable tests include total ionizing dose (TID), possibly both high dose rate and low dose rate,
and Single Events Effects testing.
• This testing is very expensive and what seemed a less expensive alternative can end up costing more.
• Risk
– Radiation testing and characterization of a device today does not indicate the next lot will work
• Variations in fabrication or even a change in location can affect performance with regards to radiation
tolerance. These changes are often not communicated to the customer as it does not affect the electrical
performance of the device.
• Reliability
– NASA has published reports indicating that a large percentage of “small-sats” are dead on arrival
or cease operation much before the expected life. Using more reliable devices suited for the harsh
environments of space will help with assuring mission success.
15
June 2017
Intersil Confidential Information
Radiation Tolerant Plastic Product Line Qualification Criteria
• One time characterization to 30krad(Si) at a dose rate of ≤10mrad/sec.
• SEE characterization for destructive and transient events
• 2 lot temperature characterization to -55C and +125C
– To set datasheet limits
• Automotive “like” qualification
–
–
–
–
–
–
–
–
16
2000 hours of life test
Moisture resistance test (MRT)
500 Temperature Cycles (-55C to +125C)
Unbiased HAST
Biased HAST
1000 hour Storage life
+125C latch-up and ESD
Surface mount leaded packages with NiPdAu finish
June 2017
Intersil Confidential Information
Intersil Radiation Tolerant (RL) Plastic Products Initiative
• RL Plastic Parts Current Released:
– ISL71026MVZ 3.3V CAN Bus Transceiver – 14Ld TSSOP Package
– ISL71001MNZ 6A Buck Regulator with Intergrated MOSFETs – 64Ld TQFP Package
– ISL71444MVZ Quad Op-Amp – 14Ld TSSOP Package
• RL Plastic Parts to Release in Q3 of 2017: (Samples and Preliminary
Datasheets Available)
– ISL71010BMB25Z 2.5V Precision Voltage Reference – Package: 8Ld SOIC
– ISL71010BMB50Z 5.0V Precision Voltage Reference – Package: 8Ld SOIC
– ISL71218MBZ Dual Op-Amp – Package: 8Ld SOIC
• Future RL Plastic Parts:
–
–
–
–
17
ISL71003M High Efficient 3A Buck Regulator – Package: 12Ld DFN
ISL71915M Nano Power RRIO Comparator – Package: 6Ld SOT23
ISL7170xM and ISL71610M Digital Isolators – Package: TBD
ISL71123M Single Supply SPDT Switch – Package: TBD
June 2017
Intersil Confidential Information
New Released or In Development Signal
Chain Products
RH Space Precision Analog Products Roadmap
Operational
Amplifiers
ISL70218SEH
290µV VOS Dual Op Amp
ISL70227SEH
100µV VOS Dual Op Amp
ISL70417SEH
ISL70x44SEH
5V–36V Precision
Quad Op Amp
110µV Offset
Dual and Quad
Rail-to-Rail I/O
Op Amps
ISL70419SEH
ISL70219SEH
SET Enhanced
Precision Op Amp
ISL70480SEH
Quad Rail-to-Rail
Precision
Comparator
ISL71590SEH
ISL71090SEH
ISL70591SEH
Precision
Temp Sensor
Upgrade of AD590
Precision VREFs
100µA Current Source
ISL71091SEH
ISL70592SEH
Precision VREFs
1mA Current Source
ISL71840SEH
ISL71841SEH
Multiplexer/
Interface
June 2017
1.8V – 5.5V, RRIO
Low Offset, 40µV,
Op Amp
In–Amp w/ ADC
Driver
Sensors/
References
19
ISL70130SEH
3V – 36V Ultra
Low ICC, 200µA,
Quad Op Amp
ISL70517SEH
ISL70617SEH
Specialty
Amplifiers
Key
ISL70481SEH
30V 16/32 Ch Mux
P-t-P HS-1840A
2011
2012
Released
Development
2013
Planned
2014
2015
ISL7202xSEH
3.3V CAN Bus
Transceiver Family
2016
Concept
Intersil Confidential Information
ISL70110SEH
ISL70210SEH
Single/Dual JFET
Input Amplifiers
ISL71830SEH
ISL71831SEH
ISL71842SEH
ISL71843SEH
5V 16/32 Ch Mux
Low 100Ω RON
30V 16/32 Ch Mux
Single Supply
2017
2018
2019
2020
ISL70x17SEH | Instrumentation Amplifiers w/ Integrated ADC Driver
• Key Specifications & Features
–
–
–
–
–
Wide supply range ±4V to ±18V
Excellent CMRR and PSRR (120dB)
Ultra low offset voltage (30µV)
Very low input bias current 200pA
5.5MHz closed loop BW (AV = 0.1)
• Radiation Tolerance
Typical Application Diagram
+15V
5V
IN+
VCC
VIN
+RIN
VCC
VCO
RIN
-RIN
ISL70617SEH
+RFB
VCMO
RFB
+IN
-IN
RH ADC
VEE
VEO
-RFB
+VOUT
-VOUT
VEE
5V
IN-
-15V
Gain range from 0.1 to 10,000
– 75krad(Si) LDR
– SEB LETTH = 60MeV∙cm2/mg
ISL70517SEH = Single Ended Output
ISL70617SEH = Differential Output
• Benefits
–
–
–
–
20
Integrated Rail to Rail ADC driver maximizes dynamic range
Ability to attenuate and gain for added flexibility
RSENSE Kelvin connection to improve gain accuracy
Split input and output supplies eliminates protection diodes
June 2017
Intersil Confidential Information
Package = 24 ld. CDFP
Typical Data Acquisition Diagram
• System Block Diagram:
– Signal with high VCM is gained and level shifted to maximize ADC range
– Signal attenuated and level shifted to eliminate ADC overdrive
Signal with
High VCM
+15V
IN+
VCC
+RIN
VCO
RIN
Gain = 10
+VFB
-RIN
ISL70517SEH
+RFB
VOUT
VCMO
RFB
VEE
IN-
High Vin
Signal
-15V
+15V
5V
IN+
VCC
+RIN
VCO
RIN
Gain = 0.1
ISL71830SEH
VEO
-RFB
5V
VCC
ISL70517SEH
+RFB
VREF
GND
VOUT
V CMO
RFB
GND
VEO
-RFB
VEE
IN-
-15V
ISL71090SEH25
June 2017
RH ADC
IN
+VFB
-RIN
21
VCC
Intersil Confidential Information
ISL71090SEH25
ISL7183xSEH | 16 & 32 CHANNEL 5V Analog MULTIPLEXERS
• Key Specifications
–
–
–
–
–
Operating Single Supply Range: 3V to 5.5V
Low input switch leakage 30nA (max)
40ns (typ) propagation delay
Very low on resistance 40Ω (typ)
High ESD 5kV on all pins
rON vs. Common Mode Voltage
• Radiation Tolerance
– 75krad(Si) LDR
– SEB LETTH = 60MeV∙cm2/mg
• Benefits
–
–
–
–
22
Ideal for N+1 applications with cold spare capability
True transmission gate for rail to rail operation
SOI process to eliminate single event latch-up
Fault tolerant with I/O over-voltage protection
June 2017
Intersil Confidential Information
ISL71830SEH = 16 Channel in 28 ld. CDFP
ISL71831SEH = 32 Channel in 48 ld. CQFP
5V Analog Multiplexer Competitive Analysis
Parameter
Channels
Abs. Max Range
Operating Range
Supply Current (Enabled)
Digital Input Currents
Rail-To-Rail
Switch Input Leakage Current
Switch Input Leakage Current (OV)
Switch Output Leakage Current
Address to Output Delay
Enable to Output Delay
RDSON
Enable Active Low?
Output Buffer
LDR
ESD (HBM)
Package
23
June 2017
Aeroflex
RHD5921
16
6.0V
3.3V to 5.0V
5mA
50 nA
Yes
50 nA
50nA
3.0µs
2.5µs
Yes
Yes
ELDRS Immune
4 kV
24 Ld SOIC
Aeroflex
RHD8544
16
7.0V
3.3V to 5.0V
1.6 mA
50 nA
Yes
50 nA
50nA
200 ns
200 ns
1000 Ω
Yes
No
ELDRS Immune
28 Ld CQFP
Northrop
NGCL3590
16
7.5V
5.0V
0.5mA
1000 nA
Yes
500 nA
1µA
5µA
600 ns
600 ns
1000 Ω
Yes
No
1 kV
28 Ld CFP
Intersil Confidential Information
Honeywell
HMXMUX01
8
6.5V
4.75V to 5.25V
0.7mA
10,000 nA
No
15nA
120 ns
120 ns
60 Ω
No
No
0.25 kV
16 Ld CFP
Intersil
ISL71830SEH
16
7.0V
3.0V to 5.5V
0.0003mA
100 nA
Yes
30 nA
30 nA
150 nA
70 ns
40 ns
120 Ω
Yes
No
75krad RHA
5 kV
28 Ld CFP
Intersil
ISL71831SEH
32
7.0V
3.0V to 5.5V
0.0003mA
100 nA
Yes
30 nA
30 nA
150 nA
70 ns
40 ns
120 Ω
Yes
No
75krad RHA
5 kV
48 Ld CQFP
ISL7059xSEH | RH Precision Current Sources
• Key Specifications
–
–
–
–
–
• Applications:
Wide operating supply range: 3V to 40V
High initial accuracy: ±0.5%
ISL70591SEH = 100µA
ISL70592SEH = 1mA
Low temperature coefficient: 2.5nA/°C
–
–
–
–
Sensor Excitation
Biasing Circuitry
Low Voltage References
Ramp Generators
• Radiation Tolerance
– 100krad(Si) HDR & 75krad(Si) LDR
– SEB LETTH = 86MeV∙cm2/mg
• Benefits
–
–
–
–
24
High output impedance to reject variations in supply
Ultra low noise to improve system accuracy
SOI process to eliminate single event latch-up
Completely floating, no supply or ground connections
June 2017
Intersil Confidential Information
1
V+
2
DNC
V-
4
DNC
3
Package = 4 ld. CDFP
/PROTO = Q3 2017
Release = Q2 2018
www.intersil.com
March 2017
Intersil Confidential Information
Back Up Slides
Phase 1 & 2 Product Roadmap
ISL71001M | 6A Synchronous Buck Regulator
ISL71026M | 3.3V CAN Bus Transceiver
ISL71444M | Quad RRIO Op Amp
ISL71010M25 | 2.5V Precision Voltage Reference
ISL71010M50 | 5.0V Precision Voltage Reference
ISL71218M | Dual Precision Op Amp
ISL71001M Samples
8/1/2016
ISL71444M Samples
11/10/2016
2016
27
Q2
Q3
March 2017
Q4
Q1
2017
Q2
8/25/2016
4/7/2017
ISL71026M Samples
ISL71010M25/ISL71010M50 Samples
ISL71218M Samples
Intersil Confidential Information
Q3
2017
ISL71026M | Radiation Tolerant CAN Bus Transceiver
• Key Specifications
–
–
–
–
–
Operating Supply Range: 3V to 3.6V
Low Operating current: 7mA
Compatible to ISO 11898-2
Bus fault protection up to ±20V
Loopback and listen mode
• Package
– 5mm x 4.4mm , 14-lead TSSOP
• Benefits
–
–
–
–
28
Radiation tolerant to 30krad(Si) & SEE characterized
Ideal for N+1 applications with cold spare capability
Selectable rise/fall times for optimal bus performance
Wide common mode range to allow for ground shifts
March 2017
Intersil Confidential Information
ISL71001M | Radiation Tolerant 6A Synchronous Buck Regulator
• Key Specifications
–
–
–
–
–
Efficiency with 5V Input
Vin Range: 3V to 5.5V
Vout Range: 0.6V to 85% of Vin
Up to 94% Efficiency
1% output voltage accuracy
Input UVLO, Output UVLO, & OCP Protection
• Package
– 10mm x 10mm, 64-lead QFP with e-pad
• Benefits
–
–
–
–
29
Radiation tolerant to 30krad(Si) & SEE characterized
Redundant control loop for class leading SET performance
Ease of use: Integrated MOSFETs and compensation
1MHz switching frequency for reduced filter size
March 2017
Intersil Confidential Information
ISL71444M | Radiation Tolerant Quad Operational Amplifier
Supply Voltage = ±15V
• Key Specifications
Operating supply range: 2.7V to 40V
Low supply current: 1.1mA
19MHz Gain Bandwidth Product
Very low VOS: 300µV
High slew rate: 60V/µs
146
131
Numer of Events
–
–
–
–
–
97
104
87
49
29
28
14
100ns
200ns
300ns
400ns
500ns
600ns
700ns
800ns
900ns
1µs
2µs
3µs
4µs
5µs
6µs
7µs
8µs
9µs
• Package
– 5mm x 4.4mm, 14-lead TSSOP
Transient Duration
• Benefits
–
–
–
–
30
Radiation tolerant to 30krad(Si) & SEE characterized
Rail-to-rail input and output to maximize dynamic range
SET recovery <5µs eliminates external filtering
SOI process to eliminate single event latch-up
March 2017
Intersil Confidential Information
ISL70090M25 | Radiation Tolerant 2.5V Precision Voltage Reference
• Key Specifications
–
–
–
–
–
Operating supply range: 4V to 30V
Low supply current: 930µA
Very low noise: 2.2µVP-P (0.1Hz to 10Hz)
High initial accuracy: ±0.05%
Output current capability: 20mA
• Package
– 5mm x 4mm, 8-lead SOIC
• Benefits
–
–
–
–
31
Radiation tolerant to 30krad(Si) & SEE characterized
Low noise to improve system accuracy
Ideal for application requiring high DC precision
SOI process to eliminate single event latch-up
March 2017
Intersil Confidential Information
ISL70090M50 | Radiation Tolerant 5.0V Precision Voltage Reference
• Key Specifications
–
–
–
–
–
Operating supply range: 7V to 30V
Low supply current: 930µA
Ultra low noise: 1.1µVP-P (0.1Hz to 10Hz)
High initial accuracy: ±0.05%
Output current capability: 20mA
• Package
– 5mm x 4mm, 8-lead SOIC
• Benefits
–
–
–
–
32
Radiation tolerant to 30krad(Si) & SEE characterized
Low noise to improve system accuracy
Ideal for application requiring high DC precision
SOI process to eliminate single event latch-up
March 2017
Intersil Confidential Information
ISL71218M | Radiation Tolerant Dual Operational Amplifier
• Key Specifications
–
–
–
–
–
Operating supply range: 3V to 36V
Very Low supply current: 850µA
3.2MHz Gain Bandwidth Product
Ultra low VOS: 40µV
Below-ground (V- ) input capability to -0.5V
• Package
– 5mm x 4mm, 8-lead SOIC
• Benefits
–
–
–
–
33
Radiation tolerant to 30krad(Si) & SEE characterized
Rail-to-rail output to maximize dynamic range
Rail-to-rail differential VIN range for comparator applications
SOI process to eliminate single event latch-up
March 2017
Intersil Confidential Information
Phase 3 & 4 Product Roadmap
ISL71003M | 3A Synchronous Buck Regulator
ISL71915M | 5V RRIO Comparator
ISL71710/1/2M | 5V Digital Isolator
ISL71610M | Digital Isolator with Passive Input
ISL71123M | Single Supply SPDT Switch
ISL71003AM Samples
8/1/2017
ISL711230M
1/30/2018
2017
34
Q3
Q4
March 2017
Q1
2018
Q2
8/25/2017
12/6/2017
ISL71915M Samples
ISL71710/1/2M25 Samples
ISL71610M Samples
Intersil Confidential Information
Q3
Q4
2019
ISL71003M | Highly Efficient 3A Synchronous Buck Regulator
• Key Specifications
–
–
–
–
5V operating voltage
Very low quiescent supply current: 4.5mA
500kHz switching frequency
800mV ± 1% voltage reference
• Package
– 3mm x 4mm, 12-lead DFN
• Benefits
–
–
–
–
35
Radiation tolerant to 30krad(Si) & SEE characterized
Small package reduces solution footprint
External compensation option to optimize design performance
DCM operation for increased light load efficiency
March 2017
Intersil Confidential Information
ISL71915M | Nano Power, RRIO Comparator
• Key Specifications
–
–
–
–
Operating voltage: 1.8V to 5.5V
Very low active supply current: 600nA
Rail-to-rail input and output
Propagation delay: 150µs
• Package
– 2.9mm x 1.6mm, 6-lead SOT23
• Benefits
–
–
–
–
36
Radiation tolerant to 30krad(Si) & SEE characterized
Small package reduces solution footprint
Rail-to-rail input and output maximizes dynamic range
Excellent SET response reduces externally filtering
March 2017
Intersil Confidential Information
Cold Spare Capability
• Reliability is an essential requirement in space applications and single
point failures must be avoided
• To achieve a high reliable communication system a node will use two CAN
transceivers in parallel
• One transceiver will be active while the other transceiver will be a cold
spare (in a powered down condition)
• The cold spare transceiver gets used if the active transceiver malfunctions
• Intersil CAN transceivers when in the powered off state does not affect the
communication on the bus and present a high impedance between the bus
and the system supply rail > 2MΩ (typical)
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Total Ionizing Dose Performance
• Intersil CAN transceivers are wafer by wafer tested to 75krad(Si)
– All test are performed per MIL-STD-883, TM1019 and used a dose rate of 10mrad(Si)/s
– 24 devices of each type were irradiated up to 75krad(Si) followed by an anneal (168 hrs, 100°C)
– All devices were bin 1 compliant after testing was complete
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Single Event Effects (SEE) Performance
• Destructive SEE test summary
– No SEL (single event latch-up) or SEB (single event burnout) for ions with 86MeV•cm2/mg while
operating at or below the voltages of VCC = 5.5V and bus common-mode voltages of ±18V.
• Single Event Transients (SET) summary
– No SET detected for LET = 2.7MeV•cm2/mg (no bit errors at 1Mbps).
– No missing bits but glitches on transition bits at 1Mbps and fast slew with LET = 20MeV•cm2/mg
to a cross section of 4x10-7 cm2
– Only single bit errors at 1Mbps and fast slew with LET = 43MeV•cm2/mg to a cross section of
4x10-6 cm2
• SET was defined as any transition in the receiver output for static biasing conditions and any received bit
outside of 40% to 60% duty-cycle for a 50% transmitted bit stream (250kHz and 500kHz)
• SET testing results shows for a geosynchronous mission a part would
experience a transmit error to heavy ion exposure no more than once every
11 years.
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