FN8764 Rev 3.00

Page 1 of 18

August 16, 2016

FN8764

Rev 3.00

August 16, 2016

ISL72028SEH

3.3V Radiation Tolerant CAN Transceiver, with Low Power Shutdown, Split

Termination Output

DATASHEET

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 up to

5Mbps. It can drive a 40m cable at 1Mbps per the ISO11898-2

specification. 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.

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”

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 5Mbps

• 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•cm2/mg

- Low dose rate (0.01rad(Si)/s) . . . . . . . . . . . . . . .75krad(Si)

Applications

• Satellites and aerospace communications

• Telemetry data processing

• High-end industrial environments

• Harsh environments

FIGURE 1. TYPICAL APPLICATION

FIGURE 2. FAST DRIVER AND RECEIVER WAVEFORMS

1

2

3

4

8

7

6

5

RS

CANH

CANL

VREF

D

GND

VCC

R

Tx DATA IN

Rx DATA OUT

CANH

CANL

ISL72028SEH

0.1µF

VCC

0

4

0

TIME (1µs/DIV)

4

0

1

2

3

RS = GND, RDIFF = 60Ω

CANH - CANL

R

D