DATASHEET
3.3V Radiation Tolerant CAN Transceiver, 1Mbps, Listen
Mode, Loopback
ISL72026SEH
Features
The Intersil ISL72026SEH 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.
• 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
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
listen mode feature and loopback test capability.
• 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)
• Listen mode supply current . . . . . . . . . . . . . . . . . . 2mA (max)
• -7V to +12V common mode input voltage range
• 5V tolerant logic inputs
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 ISL72026SEH 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 ISL72027SEH and
ISL72028SEH. For a list of differences see Table 1 on page 2.
• Thermal shutdown
Related Literature
• UG051, “ISL7202xSEHEVAL1Z Evaluation Board User Guide”
• Acceptance tested to 75krad(Si) (LDR) wafer-by-wafer
• Radiation tolerance
• TR018, “SEE Testing of the ISL72027SEH CAN Transceiver”
2
- SEL/B immune to LET 60MeV•cm /mg
• TR022, “Total Dose Testing of the ISL72026SEH,
ISL72027SEH and ISL72028SEH CAN Transceivers”
- Low dose rate (0.01rad(Si)/s) . . . . . . . . . . . . . . 75krad(Si)
Applications
• Satellites and aerospace communications
• Telemetry data processing
• High-end industrial environments
• Harsh environments
4
D
0
D
RS
Tx DATA IN
VCC
1
2
3
4
8
7
6
5
4
R
CANH
GND
CANH
CANL
0
ISL72026SEH
CANL
LBK
VCC
3
0.1µF
RS = GND, R = 60Ω
D
R
2
1
0
CANH - CANL
µController
Rx DATA OUT
TIME (1µs/DIV)
FIGURE 1. TYPICAL APPLICATION
FIGURE 2. FAST DRIVER AND RECEIVER WAVEFORMS
November 9, 2015
FN8762.1
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.
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