DATASHEET
3.3V Radiation Tolerant CAN Transceiver, 1Mbps, Low
Power Shutdown, Split Termination Output
ISL72028SEH
The Intersil
ISL72028SEH
is a radiation tolerant 3.3V CAN
transceiver that is compatible with the ISO11898-2 standard for
applications calling for Controller Area Network (CAN) serial
communication in satellites and aerospace communications, and
telemetry data processing in harsh industrial environments.
The transceiver can transmit and receive at bus speeds of up to
1Mbps. The device is designed to operate over a common-mode
range of -7V to +12V with a maximum of 120 nodes. The device
has three discrete selectable driver rise/fall time options, a low
power shutdown mode and a split termination output.
Receiver (Rx) inputs feature a “full fail-safe” design, which
ensures a logic high Rx output if the Rx inputs are floating,
shorted, or terminated but undriven.
The ISL72028SEH is available in an 8 Ld hermetic ceramic
flatpack and die form that operate across the temperature range
of -55°C to +125°C. The logic inputs are tolerant with 5V
systems.
Other CAN transceivers available are the
ISL72026SEH
and
ISL72027SEH.
For a list of differences see
Table 1 on page 2.
Features
• Electrically screened to SMD
5962-15228
• ESD protection on all pins. . . . . . . . . . . . . . . . . . . . . . 4kV HBM
• Compatible with ISO11898-2
• Operating supply range . . . . . . . . . . . . . . . . . . . . . 3.0V to 3.6V
• Bus pin fault protection to ±20V
• Undervoltage lockout
• Cold spare: powered down devices/nodes will not affect
active devices operating in parallel
• Three selectable driver rise and fall times
• Glitch free bus I/O during power-up and power-down
• Full fail-safe (open, short, terminated/undriven) receiver
• Hi Z input allows for 120 nodes on the bus
• High data rates. . . . . . . . . . . . . . . . . . . . . . . . . . . . up to 1Mbps
• Quiescent supply current . . . . . . . . . . . . . . . . . . . . 7mA (max)
• Low power shutdown mode . . . . . . . . . . . . . . . . . .50µA (max)
• -7V to +12V common-mode input voltage range
• 5V tolerant logic inputs
• Thermal shutdown
• Acceptance tested to 75krad(Si) (LDR) wafer-by-wafer
• Radiation tolerance
- SEL/B immune to LET 60MeV•cm
2
/mg
- Low dose rate (0.01rad(Si)/s) . . . . . . . . . . . . . . .75krad(Si)
Related Literature
•
UG051,
“ISL7202xSEHEVAL1Z Evaluation Board User Guide”
•
TR018,
“Single Event Effects (SEE) Testing of the ISL72027SEH
CAN Transceiver”
•
TR022,
“Total Dose Testing of the ISL72026SEH, ISL72027SEH
and ISL72028SEH CAN Transceivers”
Applications
• Satellites and aerospace communications
• Telemetry data processing
• High-end industrial environments
• Harsh environments
DRIVER OUTPUT (V) RECEIVER OUTPUT
Tx DATA IN
1 D
2 GND
RS 8
CANH 7
CANL 6
VREF 5
CANH
CANL
4
D
4
0
3
2
1
0
TIME (1µs/DIV)
R
0
ISL72028SEH
VCC
0.1µF
3 VCC
4 R
RS = GND, R
DIFF
= 60Ω
CANH - CANL
Rx DATA OUT
FIGURE 1. TYPICAL APPLICATION
FIGURE 2. FAST DRIVER AND RECEIVER WAVEFORMS
November 9, 2015
FN8764.1
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
|
Copyright Intersil Americas LLC 2015. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
DRIVER INPUT
ISL72028SEH
Ordering Information
ORDERING/SMD
NUMBER (Note
1)
5962L1522803VXC
ISL72028SEHF/PROTO
5962L1522803V9A
ISL72028SEHX/SAMPLE
ISL72028SEHEVAL1Z
NOTES:
1. Specifications for radiation tolerant QML devices are controlled by the Defense Logistics Agency Land and Maritime (DLA). The SMD numbers listed
in the Ordering Information table must be used when ordering.
2. These Intersil Pb-free Hermetic packaged products employ 100% Au plate - e4 termination finish, which is RoHS compliant and compatible with both
SnPb and Pb-free soldering operations.
PART NUMBER
(Note
2)
ISL72028SEHVF
ISL72028SEHF/PROTO
ISL72028SEHVX
ISL72028SEHX/SAMPLE
Evaluation Board
TEMPERATURE RANGE
(°C)
-55 to +125
-55 to +125
-55 to +125
-55 to +125
PACKAGE
(RoHS Compliant)
8 Ld Ceramic Flat Pack
8 Ld Ceramic Flat Pack
Die
Die
PKG DWG #
K8.A
K8.A
TABLE 1. ISL7202xSEH PRODUCT FAMILY FEATURES TABLE
SPEC
Loopback Feature
VREF Output
Listen Mode
Shutdown Mode
VTHRLM
VTHFLM
VHYSLM
Supply Current, Listen Mode
Supply Current, Shutdown Mode
VREF Leakage Current
N/A: Not Applicable
ISL72026SEH
Yes
No
Yes
No
1150mV (Max)
525mV (Min)
50mV (Min)
2mA (Max)
N/A
N/A
ISL72027SEH
No
Yes
Yes
No
1150mV (Max)
525mV (Min)
50mV (Min)
2mA (Max)
N/A
±25µA (Max)
ISL72028SEH
No
Yes
No
Yes
N/A
N/A
N/A
N/A
50µA (Max)
±25µA (Max)
Pin Configuration
D
ISL72028SEH
(8 LD CERAMIC FLATPACK)
TOP VIEW
1
2
3
4
8
7
6
5
RS
CANH
CANL
VREF
Note: The package lid is
tied to ground.
GND
VCC
R
Pin Descriptions
PIN # PIN NAME
1
2
3
4
8
7
6
5
D
GND
VCC
R
RS
CANH
CANL
VREF
Ground connection.
System power supply input (3.0V to 3.6V). The typical voltage for the device is 3.3V.
CAN Data Receiver Output. The bus states are LOW = Dominant and HIGH = Recessive.
A resistor to GND from this pin controls the rise and fall time of the CAN output waveform. Drive RS HIGH to put into low power
shutdown.
CAN bus line for low level output
CAN bus line for high level output
VCC/2 reference output for split mode termination.
FUNCTION
CAN Driver Digital Input. The bus states are LOW = Dominant and HIGH = Recessive. Internally tied HIGH.
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ISL72028SEH
Equivalent Input and Output Schematic Diagrams
VCC
VCC
4k
INPUT
35k
OUTPUT
OUTPUT
2k
30V
7k
GND
GND
GND
30V
30V
FIGURE 3. CANH AND CANL INPUTS
FIGURE 4. CANH OUTPUT
FIGURE 5. CANL OUTPUT
VCC
COLD SPARE
VCC
LO/LPSD
VCC
VCC
INPUT
200k
5
330k
OUTPUT
5
10V
10V
GND
GND
INPUT
10k
10V
GND
+
-
FIGURE 6. D INPUT
FIGURE 7. R OUTPUT
FIGURE 8. RS INPUT
VCC
LO/LPSD
36V
1500
OUTPUT
1500
36V
LO/LPSD
30V
GND
FIGURE 9. VREF
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ISL72028SEH
Absolute Maximum Ratings
VCC to GND With/Without Ion Beam . . . . . . . . . . . . . . . . . . . . -0.3V to 4.5V
CANH, CANL, VREF Under Ion Beam . . . . . . . . . . . . . . . . . . . . . . . . . . . ±18V
CANH, CANL, VREF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20V
I/O Voltages
D, R, RS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to 7V
Receiver Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . -10mA to 10mA
Output Short-Circuit Duration . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous
ESD Rating:
Human Body Model
CANH, CANL Bus Pins (Tested per MIL-PRF-883 3015.7) . . . . . . . 4kV
All Other Pins (Tested per MIL-PRF-883 3015.7) . . . . . . . . . . . . . . 4kV
Charged Device Model (Tested per JESD22-C101D) . . . . . . . . . . . . 750V
Machine Model (Tested per JESD22-A115-A) . . . . . . . . . . . . . . . . . . 200V
Thermal Information
Thermal Resistance (Typical)
JA
(°C/W)
JC
(°C/W)
39
7
8 Ld FP Package (Notes
3, 4)
Direct Attach. .
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . .+175°C
Storage Temperature Range. . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Recommended Operating Conditions
Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-55°C to +125°C
V
CC
Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.0V to 3.6V
Voltage on CAN I/O. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-7V to 12V
V
IH
D Logic Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2V to 5.5V
V
IL
D Logic Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0V to 0.8V
I
OH
Driver (CANH - CANL = 1.5V, V
CC
= 3.3V) . . . . . . . . . . . . . . . . . . - 40mA
I
OH
Receiver (V
OH
= 2.4V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -4mA
I
OL
Driver (CANH - CANL = 1.5V, V
CC
= 3.3V) . . . . . . . . . . . . . . . . . . +40mA
I
OL
Receiver (V
OL
= 0.4V). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +4mA
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product
reliability and result in failures not covered by warranty.
NOTES:
3.
JA
is measured with the component mounted on a high effective thermal conductivity test board (two buried 1oz copper planes) with “direct attach”
features package base mounted to PCB thermal land with a 10mil gap fill material having a k of 1W/m-K. See Tech Brief
TB379.
4. For
JC
, the “case temp” location is the center of the package underside.
Electrical Specifications
Test Conditions: V
CC
= 3.0V to 3.6V; Typicals are at T
A
= +25°C (Note
7);
unless otherwise specified (Note
5).
Boldface limits apply across the operating temperature range, -55°C to +125°C or over a total ionizing dose of 75krad(Si) at +25°C with exposure at a
low dose rate of <10mrad(Si)/s.
PARAMETER
SYMBOL
TEST CONDITIONS
TEMP
MIN
(°C) (Note
6)
TYP
(Note
7)
MAX
(Note
6)
UNIT
DRIVER ELECTRICAL CHARACTERISTICS
Dominant Bus Output Voltage
V
O(DOM)
D = 0V, CANH, RS = 0V,
Figures 10
and
11
D = 0V, CANL, RS = 0V,
Figures 10
and
11
Recessive Bus Output Voltage
V
O(REC)
D = 3V, CANH, RS = 0V, 60Ωand 3.0V
≤
V
CC
≤
3.6V
no load,
Figures 10
and
11
D = 3V, CANL, RS = 0V, 60Ωand
no load,
Figures 10
and
11
Dominant Output Differential
Voltage
Recessive Output Differential
Voltage
Logic Input High Voltage (D)
Logic Input Low Voltage (D)
High Level Input Current (D)
Low Level Input Current (D)
RS Input Voltage for Low Power
Shutdown Mode
V
OD(DOM)
V
OD(REC)
V
IH
V
IL
I
IH
I
IL
V
IN(RS)
D = 0V, RS = 0V, 3.0V
≤
V
CC
≤
3.6V,
Figures 10
and
11
D = 0V, RS = 0V, 3.0V
≤
V
CC
≤
3.6V,
Figures 11
and
12
D = 3V, RS = 0V, 3.0V
≤
V
CC
≤
3.6V,
Figures 10
and
11
D = 3V, RS = 0V, 3.0V
≤
V
CC
≤
3.6V, no load
3.0V
≤
V
CC
≤
3.6V,
Note 8
3.0V
≤
V
CC
≤
3.6V,
Note 8
D = 2.0V, 3.0V
≤
V
CC
≤
3.6V
D = 0.8V, 3.0V
≤
V
CC
≤
3.6V
3.0V
≤
V
CC
≤
3.6V
3.0V
≤
V
CC
≤
3.6V
Full
Full
Full
Full
Full
Full
Full
Full
Full
Full
Full
Full
2.25
0.10
1.80
1.80
1.5
1.2
-120
-500
2.0
0
-30
-30
2.85
0.65
2.30
2.30
2.2
2.1
0.2
-34
-
-
-3
-7
1.9
V
CC
1.25
2.70
2.80
3.0
3.0
12
50
5.5
0.8
30
30
5.5
V
V
V
V
V
V
mV
mV
V
V
µA
µA
V
Full
0.75xV
CC
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FN8764.1
November 9, 2015
ISL72028SEH
Test Conditions: V
CC
= 3.0V to 3.6V; Typicals are at T
A
= +25°C (Note
7);
unless otherwise specified (Note
5).
Boldface limits apply across the operating temperature range, -55°C to +125°C or over a total ionizing dose of 75krad(Si) at +25°C with exposure at a
low dose rate of <10mrad(Si)/s. (Continued)
PARAMETER
Output Short Circuit Current
SYMBOL
I
OSC
TEST CONDITIONS
V
CANH
= -7V, CANL = OPEN, 3.0V
≤
V
CC
≤
3.6V,
Figure 18
V
CANH
= +12V, CANL = OPEN, 3.0V
≤
V
CC
≤
3.6V,
Figure 18
V
CANL
= -7V, CANH = OPEN, 3.0V
≤
V
CC
≤
3.6V,
Figure 18
V
CANL
= +12V, CANH = OPEN, 3.0V
≤
V
CC
≤
3.6V,
Figure 18
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
T
SHDN
T
HYS
V
THR
V
THF
V
HYS
V
OH
V
OL
I
CAN
3.0V < V
IN
< 3.6V
3.0V < V
IN
< 3.6V
RS = 0V, 10k, 50k, (recessive to dominant),
Figures 14
and
15
RS = 0V, 10k, 50k, (dominant to recessive),
Figures 14
and
15
(V
THR
- V
THF
), RS = 0V, 10k, 50k,
Figures 14
and
15
I
O
= -4mA
I
O
= +4mA
CANH or CANL at 12V, D = 3V, other bus pin at 0V,
RS = 0V
CANH or CANL at 12V, D = 3V, V
CC
= 0V, other bus pin at
0V, RS = 0V
CANH or CANL at -7V, D = 3V, other bus pin at 0V,
RS = 0V
CANH or CANL at -7V, D = 3V, V
CC
= 0V, other bus pin at
0V, RS = 0V
Input Capacitance (CANH or CANL) C
IN
Differential Input Capacitance
Input Resistance (CANH or CANL)
Differential Input Resistance
SUPPLY CURRENT
Supply Current, Low Power
Shutdown Mode
Supply Current, Dominant
Supply Current, Recessive
COLD SPARING BUS CURRENT
CANH Leakage Current
CANL Leakage Current
VREF Leakage Current
I
L(CANH)
I
L(CANL)
I
L(VREF)
t
PDLH1
t
PDLH2
V
CC
= 0.2V, CANH = -7V or 12V, D = V
CC
, CANL = float,
RS = 0V
V
CC
= 0.2V, CANL = -7V or 12V, D = V
CC
, CANH = float,
RS = 0V
V
CC
= 0.2V, V
REF
= -7V or 12V, D = V
CC
RS = 0V,
Figure 13
RS = 10kΩ,
Figure 13
Full
Full
Full
-25
-25
-25.00
-4
-4
0.01
25
25
25.00
µA
µA
µA
I
CC(LPS)
I
CC(DOM)
I
CC(REC)
RS = D = V
CC
, 3.0V
≤
V
CC
≤
3.6V,
Note 9
D = RS = 0V, no load, 3.0V
≤
V
CC
≤
3.6V
D = V
CC
, RS = 0V, no load, 3.0V
≤
V
CC
≤
3.6V
Full
Full
Full
-
-
-
20
5
2.6
50
7
5.0
µA
mA
mA
C
IND
R
IN
R
IND
Input to GND, D = 3V, RS = 0V
Input to input, D = 3V, RS = 0V
Input to GND, D = 3V, RS = 0V
Input to input, D = 3V, RS = 0V
TEMP
MIN
(°C) (Note
6)
Full
Full
Full
Full
-
-
-250
-
-1.0
-
-
-
TYP
(Note
7)
-100
0.4
-0.4
100
163
12
MAX
(Note
6)
UNIT
-
1.0
-
250
-
-
mA
mA
mA
mA
°C
°C
Electrical Specifications
RECEIVER ELECTRICAL CHARACTERISTICS
Input Threshold Voltage (Rising)
Input Threshold Voltage (Falling)
Input Hysteresis
Receiver Output High Voltage
Receiver Output Low Voltage
Input Current for CAN Bus
Full
Full
Full
Full
Full
Full
Full
Full
Full
25
25
Full
Full
-
500
40
2.4
-
-
-
-400
-150
-
-
20
40
750
650
90
VCC - 0.2
0.2
420
150
-300
-85
35
15
40
80
900
-
-
-
0.4
500
250
-
-
-
-
50
100
mV
mV
mV
V
V
µA
µA
µA
µA
pF
pF
kΩ
kΩ
DRIVER SWITCHING CHARACTERISTICS
Propagation Delay Low to High
Propagation Delay Low to High
Full
Full
-
-
75
520
150
850
ns
ns
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