ISL71831SEHVF_技术文档

DATASHEET

3.3V Radiation Tolerant CAN Transceiver, with Listen

Mode and Split Termination Output

ISL72027SEH

Features

The Intersil ISL72027SEH is a 3.3V radiation tolerant 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.

• DLA 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 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 listen mode feature and a split termination

output.

• 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)

• 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 ISL72027SEH is available in an 8 Ld hermetic ceramic

flatpack and die form that operate across the temperature

range of the -55°C to +125°C. The logic inputs are tolerant

with 5V systems.

Other CAN transceivers available are the ISL72026SEH and

ISL72028SEH. For a list of differences see Table 1 on page 2.

• Thermal shutdown

• Acceptance tested to 75krad(Si) (LDR) wafer-by-wafer

Related Literature

• UG051, “ISL7202xSEHEVAL1Z Evaluation Board User Guide”

• Radiation tolerance

2

- SEL/B immune to LET 60MeV•cm /mg

• TR018, “SEE Testing of the ISL72027SEH CAN Transceiver”

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

• 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

4

Tx DATA IN

VCC

D

RS

D

1

2

3

4

8

7

6

5

0

4

CANH

CANL

GND

R

ISL72027SEH

0

CANL

VREF

VCC

0.1µF

R

3

RS = GND, R

DIFF

= 60Ω

2

1

0

CANH - CANL

Rx DATA OUT

TIME (1µs/DIV)

FIGURE 1. TYPICAL APPLICATION

FIGURE 2. FAST DRIVER AND RECEIVER WAVEFORMS

August 16, 2016

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CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

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.

1

ISL72027SEH

Ordering Information

ORDERING/SMD

NUMBER (Note 1)

PART NUMBER

(Note 2)

TEMP RANGE

(°C)

PACKAGE

(RoHS Compliant)

PKG.

DWG. #

5962L1522802VXC

ISL72027SEHVF

-55 to +125

8 Ld Ceramic Flatpack

K8.A

N/A

ISL72027SEHF/PROTO

ISL72027SEHVX

8 Ld Ceramic Flatpack

5962L1522802V9A

-55 to +125

Die

N/A

ISL72027SEHX/SAMPLE

ISL72027SEHEVAL1Z

-55 to +125

N/A

Evaluation Board

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 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.

TABLE 1. ISL7202xSEH PRODUCT FAMILY FEATURE TABLE

SPEC

Loopback Feature

ISL72026SEH

Yes

ISL72027SEH

No

ISL72028SEH

No

Yes

VREF Output

No

Yes

Listen Mode

Yes

No

Shutdown Mode

VTHRLM

No

Yes

1150mV (Max)

525mV (Min)

50mV (Min)

2mA (Max)

N/A

1150mV (Max)

525mV (Min)

50mV (Min)

2mA (Max)

N/A

VTHFLM

N/A

VHYSLM

N/A

Supply Current, Listen Mode

Supply Current, Shutdown Mode

VREF Leakage Current

N/A: Not Applicable

N/A

50µA (Max)

±25µA (Max)

N/A

±25µA (Max)

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ISL72027SEH

Pin Configuration

ISL72027SEH

(8 LD CERAMIC FLATPACK)

TOP VIEW

D

1

2

3

4

8

7

6

5

RS

GND

VCC

R

CANH

CANL

VREF

Note: The package lid is tied to ground.

Pin Descriptions

NUMBER

NAME

FUNCTION

1

2

3

4

8

7

6

5

D

CAN driver digital input. The bus states are LOW = dominant and HIGH = recessive. Internally tied HIGH.

Ground connection.

GND

VCC

R

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 listen mode.

CAN bus line for low level output.

RS

CANL

CANH

VREF

CAN bus line for high level output.

VCC/2 reference output for split mode termination.

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ISL72027SEH

Equivalent Input and Output Schematic Diagrams

VCC

4k

35k

INPUT

30V

OUTPUT

2k

7k

30V

GND

FIGURE 3. CANH AND CANL INPUTS

FIGURE 4. CANH OUTPUT

FIGURE 5. CANL OUTPUT

VCC

COLD SPARE

VCC

LO/LPSD

330k

5

200k

OUTPUT

INPUT

+

10V

-

10k

10V

GND

FIGURE 6. D INPUT

FIGURE 7. R OUTPUT

FIGURE 8. RS INPUT

VCC

LO / LPSD

36V

1500

OUTPUT

1500

36V

30V

LO / LPSD

GND

FIGURE 9. VREF

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ISL72027SEH

Absolute Maximum Ratings

Thermal Information

VCC to GND with/without Ion Beam. . . . . . . . . . . . . . . . . . . . . -0.3V to 5.5V

CANH, CANL, VREF Under Ion Beam . . . . . . . . . . . . . . . . . . . . . . . . . . . ±18V

CANH, CANL, VREF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20V

I/O Voltages

Thermal Resistance (Typical)

8 Ld FP Package (Notes 3, 4) Direct Attach .

Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . .+175°C

Storage Temperature Range. . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C



(°C/W)

39



(°C/W)

7

JA

JC

D, R, RS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to 7V

Receiver Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . .-10mA to 10mA

Output Short-circuit Duration . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous

ESD Rating:

Recommended Operating Conditions

Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-55°C to +125°C

Human Body Model (Tested per MIL-PRF-883 3015.7)

V

Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3V to 3.6V

CC

Voltage on CAN I/O. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -7V to 12V

CANH, CANL Bus Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4kV

All Other Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4kV

Charged Device Model (Tested per JESD22-C101D) . . . . . . . . . . . . . . 750V

Machine Model (Tested per JESD22-A115-A) . . . . . . . . . . . . . . . . . . . . 200V

V

D Logic Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2V to 5.5V

D Logic Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0V to 0.8V

IH

IL

IOH Driver (CANH - CANL = 1.5V, V = 3.3V) . . . . . . . . . . . . . . . . . . - 40mA

CC

IOH Receiver (V = 2.4V). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -4mA

OH

IOL Driver (CANH - CANL = 1.5V, V = 3.3V) . . . . . . . . . . . . . . . . . . +40mA

CC

IOL Receiver (V = 0.4V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +4mA

OL

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.

3.  is measured with the component mounted on a high effective thermal conductivity test board (two buried 1oz copper planes) with “direct attach”

JA

features package base mounted to PCB thermal land with a 10 mil gap fill material having a k of 1W/m-K. See Tech Brief TB379.

4. For  , the “case temp” location is the center of the package underside.

JC

Electrical Specifications Test Conditions: V = 3V to 3.6V; Typicals are at T = +25°C (Note 7); unless otherwise specified (Note 5).

CC

A

Boldface limits apply across the operating temperature range, -55°C to +125°C or across a total ionizing dose of 75krad(Si) at +25°C with exposure at

a low dose rate of <10mrad(Si)/s.

TEMP

(°C)

MIN

TYP

MAX

(Note 6)

PARAMETER

SYMBOL

TEST CONDITIONS

(Note 6) (Note 7)

UNIT

DRIVER ELECTRICAL CHARACTERISTICS

Dominant Bus Output Voltage

Recessive Bus Output Voltage

V

D = 0V, CANH, RS = 0V,

Figures 10 and 11

3V  V  3.6V

CC

Full

2.25

0.10

1.80

2.85

0.65

2.30

V

O(DOM)

CC

D = 0V, CANL, RS = 0V,

Figures 10 and 11

1.25

2.70

D = 3V, CANH, RS = 0V, 60Ω 3V  V  3.6V

O(REC)

CC

and no load, Figures 10 and

11

D = 3V, CANL, RS = 0V, 60Ω

and no load, Figures 10 and

11

Full

1.80

2.30

2.80

V

Dominant Output Differential

Voltage

V

D = 0V, RS = 0V, 3V V  3.6V, Figures 10 and 11 Full

CC

1.5

1.2

-120

-500

2.0

0

2.2

2.1

0.2

-34

-

3.0

12

V

OD(DOM)

D = 0V, RS = 0V, 3V V  3.6V, Figures 11 and 12 Full

CC

Recessive Output Differential

Voltage

D = 3V, RS = 0V, 3V V  3.6V, Figures 10 and 11 Full

CC

mV

V

OD(REC)

D = 3V, RS = 0V, 3.0V V  3.6V, no load

CC

Full

50

Logic Input High Voltage (D)

Logic Input Low Voltage (D)

High Level Input Current (D)

Low Level Input Current (D)

V

3V V  3.6V, Note 8

CC

5.5

0.8

30

IH

3V V  3.6V, Note 8

CC

-

V

IL

I

D = 2V, 3V  V  3.6V

CC

-30

-3

µA

V

IH

D = 0.8V, 3V  V  3.6V

CC

-7

30

IL

RS Input Voltage for Listen

Mode

V

3V  V  3.6V

CC

Full 0.75xVCC

1.90

5.5

IN(RS)

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ISL72027SEH

Electrical Specifications Test Conditions: V = 3V to 3.6V; Typicals are at T = +25°C (Note 7); unless otherwise specified (Note 5).

CC

A

Boldface limits apply across the operating temperature range, -55°C to +125°C or across a total ionizing dose of 75krad(Si) at +25°C with exposure at

a low dose rate of <10mrad(Si)/s. (Continued)

TEMP

(°C)

MIN

TYP

MAX

(Note 6)

PARAMETER

SYMBOL

TEST CONDITIONS

= -7V, CANL = OPEN, 3V  V  3.6V,

(Note 6) (Note 7)

UNIT

mA

Output Short-Circuit Current

I

V

Full

-

-250

-100

0.4

-

OSC

CANH

Figure 18

CC

V

= +12V, CANL = OPEN, 3V  V  3.6V,

CC

Figure 18

-

1.0

mA

°C

CANH

V

= -7V, CANH = OPEN, 3V  V  3.6V,

CC

Figure 18

-1.0

-0.4

100

163

12

-

CANL

V

= +12V, CANH = OPEN, 3V  V  3.6V,

CC

Figure 18

-

250

CANL

Thermal Shutdown

Temperature

T

3V < V < 3.6V

IN

-

SHDN

HYS

Thermal Shutdown Hysteresis

3V < V < 3.6V

IN

-

°C

RECEIVER ELECTRICAL CHARACTERISTICS

Input Threshold Voltage (Rising) V

RS = 0V, 10k, 50k, (recessive to dominant),

Figures 14 and 15

Full

-

750

650

900

mV

THR

Input Threshold Voltage (Falling) V

RS = 0V, 10k, 50k, (dominant to recessive),

Figures 14 and 15

500

-

THF

Input Hysteresis

V

(V

- V

THR THF

), RS = 0V, 10k, 50k, Figures 14 and 15 Full

40

90

-

mV

HYS

Listen Mode Input Threshold

Voltage (Rising)

RS = V , (recessive to dominant), Figure 14

CC

Full

-

920

1150

THRLM

Listen Mode Input Threshold

Voltage (Falling)

V

RS = V , (dominant to recessive), Figure 14

CC

Full

525

820

-

mV

THFLM

Listen Mode Input Hysteresis

Receiver Output High Voltage

Receiver Output Low Voltage

Input Current for CAN Bus

V

(V

- V

), RS = V , Figure 14

CC

Full

50

100

VCC - 0.2

0.2

-

mV

V

HYSLM

THR THF

I

= -4mA

2.4

-

OH

O

= +4mA

-

0.4

500

V

OL

I

CANH or CANL at 12V, D = 3V, other bus pin at 0V,

RS = 0V

420

µA

CAN

CANH or CANL at 12V, D = 3V, V = 0V, other bus

CC

pin at 0V, RS = 0V

Full

-

150

-300

-85

250

µA

pF

CANH or CANL at -7V, D = 3V, other bus pin at 0V,

RS = 0V

-400

-150

-

CANH or CANL at -7V, D = 3V, V = 0V, other bus pin Full

CC

at 0V, RS = 0V

Input Capacitance

(CANH or CANL)

C

Input to GND, D = 3V, RS = 0V

25

35

IN

Differential Input Capacitance

Input to Input, D = 3V, RS = 0V

Input to GND, D = 3V, RS = 0V

25

-

15

40

-

pF

IND

Input Resistance

(CANH or CANL)

R

Full

20

50

kΩ

IN

Differential Input Resistance

SUPPLY CURRENT

R

Input to Input, D = 3V, RS = 0V

Full

40

80

100

kΩ

IND

Supply Current, Listen Mode

Supply Current, Dominant

Supply Current, Recessive

COLD SPARING BUS CURRENT

CANH Leakage Current

I

RS = D = V , 3V V  3.6V

CC CC

Full

-

1

5

2

7

mA

CC(L)

D = RS = 0V, no load, 3V  V  3.6V

CC

CC(DOM)

CC(REC)

D = V , RS = 0V, no load, 3V  V  3.6V

CC CC

2.6

5.0

I

V

= 0.2V, CANH = -7V or 12V, CANL = float,

Full

-25

-4

25

µA

L(CANH)

L(CANL)

L(VREF)

CC

D = V , RS = 0V

CC

= 0.2V, CANL = -7V or 12V, CANH = float,

CANL Leakage Current

VREF Leakage Current

V

CC

D = V , RS = 0V

CC

= 0.2V, V

V

= -7V or 12V, D = V

REF CC

-25.00

0.01

25.00

CC

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ISL72027SEH

Electrical Specifications Test Conditions: V = 3V to 3.6V; Typicals are at T = +25°C (Note 7); unless otherwise specified (Note 5).

CC

A

Boldface limits apply across the operating temperature range, -55°C to +125°C or across a total ionizing dose of 75krad(Si) at +25°C with exposure at

a low dose rate of <10mrad(Si)/s. (Continued)

TEMP

(°C)

MIN

TYP

MAX

(Note 6)

PARAMETER

SYMBOL

TEST CONDITIONS

(Note 6) (Note 7)

UNIT

DRIVER SWITCHING CHARACTERISTICS

Propagation Delay LOW to HIGH t

Propagation Delay HIGH to LOW t

RS = 0V, Figure 13

Full

-

75

520

850

80

150

850

1400

155

800

1300

50

ns

us

PDLH1

PDLH2

PDLH3

PDHL1

PDHL2

PDHL3

SKEW1

SKEW2

SKEW3

r1

RS = 10kΩ, Figure 13

RS = 50kΩ, Figure 13

RS = 0V, Figure 13

-

RS = 10kΩ, Figure 13

RS = 50kΩ, Figure 13

-

460

725

5

-

Output Skew

t

RS = 0V, (|t

- t

|), Figure 13

-

PHL PLH

Output Skew

RS = 10kΩ, (|t

- t

|), Figure 13

-

60

510

800

100

75

PHL PLH

Output Skew

RS = 50kΩ, (|t - t

PHL PLH

-

110

55

Output Rise Time

Output Fall Time

Output Rise Time

Output Fall Time

Output Rise Time

Output Fall Time

RS = 0V, (fast speed)

Figure 13

20

10

25

f1

RS = 10kΩ, (medium speed - 250Kbps)

Figure 13

200

400

300

700

650

115

550

850

130

500

750

5

780

500

1400

1000

210

875

1400

270

825

1300

15

r2

175

f2

RS = 50kΩ, (slow speed - 125Kbps)

Figure 13

400

r3

300

f3

Total Loop Delay, Driver Input to

Receiver Output, Recessive to

Dominant

RS = 0V, Figure 16

RS = 10kΩ, Figure 16

RS = 50kΩ, Figure 16

RS = 0V, Figure 16

RS = 10kΩ, Figure 16

RS = 50kΩ, Figure 16

Figure 17

-

(LOOP1)

Total Loop Delay, Driver Input to

Receiver Output, Dominant to

Recessive

t

(LOOP2)

Listen to Valid Dominant Time

t

L-DOM)

RECEIVER SWITCHING CHARACTERISTICS

Propagation Delay LOW to HIGH t

Propagation Delay HIGH to LOW t

Figure 14

Full

-

50

2

110

ns

PLH

110

PHL

Rx Skew

t

|(t

- t

)|, Figure 14

35

SKEW1

PHL PLH

Rx Rise Time

Figure 14

2

-

r

f

Rx Fall Time

2

VREF/RS PIN CHARACTERISTICS

VREF

-5µA<IREF<5µA

Full 0.45xV

CC

1.60

1.6

0.55xV

CC

V

VREF Pin Voltage

-50µA<IREF<50µA

Full

0.4xV

CC

0.6xV

CC

I

RS = 0.75 x V

CC

-10.0

-450

-0.2

-125

-

µA

RS(H)

RS(L)

RS Pin Input Current

NOTES:

V

= 0V

0

RS

5. All currents into device pins are positive; all currents out of device pins are negative. All voltages are referenced to device ground unless otherwise

specified.

6. Parameters with MIN and/or MAX limits are 100% tested at -55°C, +25°C and +125°C, unless otherwise specified.

7. Typical values are at 3.3V. Parameters with a single entry in the “TYP” column apply to 3.3V. Typical values shown are not guaranteed.

8. Parameter included in functional testing.

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ISL72027SEH

Test Circuits and Waveforms

DOMINANT

V

O(CAN_H)

3V

D

CAN_H

60Ω

RECESSIVE

V

CAN_L

GND

OD

2.3V

1V

V

O(CAN_H)

V

O(CAN_L)

V

O(CAN_L)

FIGURE 11. DRIVER BUS VOLTAGE DEFINITIONS

FIGURE 10. DRIVER TEST CIRCUIT

330Ω

CAN_H

D

60Ω

CAN_L

GND

V

-7V < VCM < 12V

FIGURE 12. DRIVER COMMON-MODE CIRCUIT

t

f

r

CAN_H

D

C

50pF

±20%

L

60Ω

±1%

V

O

IN

DOM

0.9V

90%

10%

CAN_L

GND

0.5V

V

O

V

REC

CC

t

PHL

PLH

SCOPE

V

IN

0.5 x V

0V

CC

V

= 125kHz, 0V to V , Duty Cycle 50%, t = t ≤ 6ns, Z = 50Ω

CC

IN

r

f

O

C

includes fixture and instrumentation capacitance.

L

FIGURE 13B. DRIVER TIMING MEASUREMENT POINTS

FIGURE 13. DRIVER TIMING

FIGURE 13A. DRIVER TIMING TEST CIRCUIT

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ISL72027SEH

Test Circuits and Waveforms(Continued)

CAN_H

CAN_L

R

15pF

V

O

V

GND

IN

1.5V

CAN_H

CAN_L

R

VDIFF

V

C

= 125kHz, Duty Cycle 50%, t = t = 6ns, Z = 50Ω

includes test setup capacitance

V

IN

r

f

O

VCANH

L

GND

FIGURE 14B. RECEIVER TEST CIRCUIT

VCANL

t

f

r

V

OH

90%

10%

50%

t

50%

V

O

V

OL

t

PLH

PHL

2.9V

2.2V

1.5V

IN

FIGURE 14A. RECEIVER VOLTAGE DEFINITIONS

FIGURE 14C. RECEIVER TEST MEASUREMENT POINTS

FIGURE 14. RECEIVER TEST

INPUT

OUTPUT

MEASURED

VDIFF

900mV

6V

VCANH

–6.1V

12V

VCANL

R

L

–7V

11.1V

–7V

L

–1V

L

12V

6V

L

6V

–6.5V

12V

–7V

H

500mV

6V

11.5V

–1V

–7V

FIGURE 15. DIFFERENTIAL INPUT VOLTAGE THRESHOLD TEST

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ISL72027SEH

Test Circuits and Waveforms(Continued)

0Ω,10kΩ,50kΩ

RS

VREF

D

V

CAN H

CAN L

CC

60Ω

±1%

50%

FLOAT

V

IN

0V

V

t

(LOOP2)

(LOOP1)

50%

R

OH

GND

V

IN

50%

V

15pF ±20%

O

V

O

V

OL

V

= 125kHz, Duty Cycle 50%, t = t ≤ 6ns

r f

IN

FIGURE 16B. TOTAL LOOP DELAY MEASUREMENT POINTS

FIGURE 16. TOTAL LOOP DELAY

FIGURE 16A. TOTAL LOOP DELAY TEST CIRCUIT

V

CC

RS

CAN_H

50%

FLOAT

VREF

V

60Ω

±1%

OD

IN

0V

V

IN

CAN_L

GND

D

R

V

OH

OL

50%

VO

V

O

15pF ±20%

t L - DOM

V

= 125kHz, 0V to V , Duty Cycle 50%, t = t ≤ 6ns

CC

IN

r

f

FIGURE 17A. LISTEN TO VALID DOMINANT TIME CIRCUIT

FIGURE 17B. LISTEN TO VALID DOMINANT TIME MEASUREMENT

POINTS

FIGURE 17. LISTEN TO VALID DOMINANT TIME

|I

|

O(SRT)

I

)

O(SRT

GND

CANH

0A

D

12V

-7V

CANL

GND

V

IN

I

+

O(SRT)

V

= -7V

10ms

-

IN

OR 12V

0V

V

FIGURE 18B. OUTPUT SHORT-CIRCUIT CURRENT WAVEFORMS

FIGURE 18. OUTPUT SHORT-CIRCUIT

FIGURE 18A. OUTPUT SHORT-CIRCUIT CURRENT CIRCUIT

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ISL72027SEH

Listen Mode

Functional Description

When a high level is applied to the RS pin, the device enters a low

power listen mode. The driver of the transceiver is switched off to

conserve power while the receiver remains active. In listen mode

the transceiver draws 2mA (max) of current.

Overview

The Intersil ISL72027SEH is a 3.3V radiation tolerant CAN

transceiver that is compatible with the ISO11898-2 standard for

use in CAN (Controller Area Network) serial communication

systems.

A low level on the RS pin brings the device back to normal

operation.

The device performs transmit and receive functions between the

CAN controller and the CAN differential bus. It can transmit and

receive at bus speeds of up to 5Mbps. It is designed to operate

over a common-mode range of -7V to +12V with a maximum of

120 nodes. The device is capable of withstanding ±20V on the

CANH and CANL bus pins outside of ion beam and ±16V under

ion beam.

Using 3.3V Devices in 5V Systems

Looking at the differential voltage of both the 3.3V and 5V

devices, the differential voltage is the same, the recessive

common-mode output is the same. The dominant

common-mode output voltage is slightly lower than the 5V

counterparts. The receiver specs are also the same. Though the

electrical parameters appear compatible, it is advised that

necessary system testing be performed to verify interchangeable

operation.

Slope Adjustment

The output driver rise and fall time has three distinct selections

that may be chosen by using a resistor from the RS pin to GND.

Connecting the RS pin directly to GND results in output switching

times that are the fastest, limited only by the drive capability of

the output stage. RS = 10kΩ provides for a typical slew rate of

8V/µs and RS = 50kΩ provides for a typical slew rate of 4V/µs.

Split Mode Termination

The VREF pin provides a V /2 output voltage for split mode

CC

termination. The VREF pin has the same ESD protection,

short-circuit protection, and common-mode operating range as

the bus pins.

Putting a high logic level to the RS pin places the device in a low

current listen mode. The protocol controller uses this mode to

switch between low power listen mode and a normal transmit

mode.

The split mode termination technique is shown in Figure 19.

VREF

NODE

#1

NODE

#2

NODE

#n

Cable Length

The device can work per ISO11898 specification with a 40m

cable and stub length of 0.3m and 60 nodes at 1Mbps. This is

greater than the ISO requirement of 30 nodes. The cable type

specified is a twisted pair (shielded or unshielded) with a

characteristic impedance of 120Ω. Resistors equal to this are to

be terminated at both ends of the cable. Stubs should be kept as

short as possible to prevent reflections.

CANH

60Ω

C

L

60Ω

CANL

FIGURE 19. SPLIT TERMINATION

Cold Spare

High reliability system designers implementing data

It is used to stabilize the bus voltage at V /2 and prevent it from

CC

drifting to a high common-mode voltage during periods of

inactivity. The technique improves the electromagnetic

compatibility of a network. The split mode termination is put at

each end of the bus.

communications have to be sensitive to the potential for single

point failures. To mitigate the risk of a failure they will use

redundant bus transceivers in parallel. Space systems call for

high reliability in data communications that are resistant to

single point failures. This is achieved by using a redundant bus

transceiver in parallel. In this arrangement, both active and

quiescent devices can be present simultaneously on the bus. The

quiescent devices are powered down for cold spare and do not

affect the communication of the other active nodes.

The C capacitor between the two 60Ω resistors filters unwanted

L

high frequency noise to ground. The resistors should have a

tolerance of 1% or better and the two resistors should be

carefully matched to provide the most effective EMI immunity. A

typical value of C for a high speed CAN network is 4.7nF, which

L

generates a 3dB point at 1.1Mbps. The capacitance value used is

dependent on the signaling rate of the network.

To achieve this, a powered down transceiver (V < 200mV) has

CC

a resistance between the VREF pin or the CANH pin or CANL pin

and the V supply rail of >480kΩ (max) with a typical resistance

CC

>2MΩ. The resistance between CANH and CANL of a powered

down transceiver has a typical resistance of 80kΩ.

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ISL72027SEH

Typical Performance Curves

V

= 3.3V, C = 15pF, T = +25°C; unless otherwise specified.

CC L A

25

20

15

10

5

20

-55 °C

+25 °C

+125 °C

15

10

5

+125 °C

+25 °C

-55 °C

RS = GND, R

DIFF

= 60Ω

RS = 10kΩ, R

= 60Ω

DIFF

0

100

200

300

400

500

600

700

800

900 1000

200

300

400

500

600

700

800 900 100

DATA RATE (kbps)

FIGURE 20. SUPPLY CURRENT vs FAST DATA RATE vs

TEMPERATURE

FIGURE 21. SUPPLY CURRENT vs MEDIUM DATA RATE vs

TEMPERATURE

200

25

V

= RS = GND, D = 3V, OTHER BUS PIN = GND

CC

150

100

50

20

15

10

5

+25 °C

+125 °C

0

-55 °C

-50

-100

RS = 50kΩ, R

= 60Ω

DIFF

-55 °C

0

100

200

300

400

500

600

700

800 900 1000

-8

-4

0

4

8

12

DATA RATE (kbps)

BUS VOLTAGE (V)

FIGURE 23. BUS PIN LEAKAGE vs VCM AT V = 0V

CC

FIGURE 22. SUPPLY CURRENT vs SLOW DATA RATE vs

TEMPERATURE

15

10

5

600

V

= 3V OR 3.6V, RS = GND, D = V , OTHER BUS PIN = GND

CC

V

= 3V OR 3.6V, RS = GND, D = V , OTHER BUS PIN = GND

CC

400

200

0

-55 °C

+125 °C

0

+125 °C

-55 °C

-200

-400

-600

-5

+25 °C

-10

-15

+25 °C

-12

-9

-6

-3

0

3

6

9

12

-40

-30

-20

-10

0

10

20

30

40

BUS VOLTAGE (V)

FIGURE 24. BUS PIN LEAKAGE vs ±12V VCM

FIGURE 25. BUS PIN LEAKAGE vs ±35V VCM

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ISL72027SEH

Typical Performance Curves

V

= 3.3V, C = 15pF, T = +25°C; unless otherwise specified. (Continued)

CC

L

A

120

100

80

60

40

20

0

3

RS = GND, R

= 60Ω

100kΩ ON R TO V , RS = D = GND, R

CC

= OPEN

DIFF

H TO L, V

CC

= 3V

2.5

2

L TO H, V

CC

= 3V

L TO H, V

= 3.6V

= 3V

CC

1.5

1

DOWN

H TO L, V

= 3.6V

CC

SKEW, V

UP

3.0

CC

SKEW, V

CC

= 3.6V

0.5

0

-55

-35

-15

5.0

25

45

65

85

105 125

0

0.5

1.0

1.5

2.0

2.5

3.5

4.0

4.5

5.0

V

SWEEP (V)

TEMPERATURE (°C)

CC

FIGURE 27. TRANSMITTER PROPAGATION DELAY AND SKEW vs

TEMPERATURE AT FAST SPEED

FIGURE 26. V UNDERVOLTAGE LOCKOUT

CC

800

700

600

500

400

300

200

100

0

1200

RS = 10kΩ, R

DIFF

= 60Ω

RS = 10kΩ, R

= 60Ω

DIFF

L TO H, V

= 3V

CC

L TO H, V = 3V

CC

1000

800

600

400

200

0

H TO L, V

= 3.6V

CC

H TO L, V

= 3.6V

CC

L TO H, V

CC

= 3.6V

H TO L, V

CC

= 3V

L TO H, V

= 3.6V

CC

H TO L, V

= 3V

CC

SKEW, V

= 3V

SKEW, V

= 3V

CC

SKEW, V

CC

= 3.6V

SKEW, V

= 3.6V

-15

CC

-55

-35

5.0

25

45

65

85

105

125

-55

-35

-15

5.0

25

45

65

85

105

125

TEMPERATURE (°C)

FIGURE 28. TRANSMITTER PROPAGATION DELAY AND SKEW vs

TEMPERATURE AT MEDIUM SPEED

FIGURE 29. TRANSMITTER PROPAGATION DELAY AND SKEW vs

TEMPERATURE AT SLOW SPEED

60

600

RS = 10kΩ, R

DIFF

= 60Ω

RS = GND, R

DIFF

= 60Ω

= 3V

55

50

45

40

35

30

25

20

RISE, V

CC

= 3V

500

400

300

200

100

0

RISE, V

CC

= 3.6V

RISE, V

CC

FALL, V

= 3V

CC

RISE, V

CC

= 3.6V

FALL, V

= 3V

CC

FALL, V

= 3.6V

CC

FALL, V

= 3.6V

105

CC

-55

-35

-15

5.0

25

45

65

85

105

125

-55

-35

-15

5.0

25

45

65

85

125

TEMPERATURE (°C)

FIGURE 31. TRANSMITTER RISE AND FALL TIMES vs TEMPERATURE

AT MEDIUM SPEED

FIGURE 30. TRANSMITTER RISE AND FALL TIMES vs TEMPERATURE

AT FAST SPEED

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ISL72027SEH

Typical Performance Curves

V

= 3.3V, C = 15pF, T = +25°C; unless otherwise specified. (Continued)

CC L A

100

90

80

70

60

50

40

30

20

10

0

1200

+25 °C

R = 30Ω

D

R

= 20Ω

RS = 50kΩ, R

= 60Ω

D

DIFF

1000

800

600

400

200

0

RISE, V

= 3V

CC

+85 °C

RISE, V

= 3.6V

CC

R

= 60Ω

D

+125 °C

FALL, V

CC

= 3V

FALL, V

= 3.6V

CC

R

= 120Ω

D

0

0.5

1.0

1.5

2.0

2.5

3.0 3.3

-55

-35

-15

5.0

25

45

65

85

105

125

TEMPERATURE (°C)

DIFFERENTIAL OUTPUT VOLTAGE (V)

FIGURE 32. TRANSMITTER RISE AND FALL TIMES vs TEMPERATURE

AT SLOW SPEED

FIGURE 33. DRIVER OUTPUT CURRENT vs DIFFERENTIAL OUTPUT

VOLTAGE

150

V

= 3.6V, D = GND

CC

V

= 3V, D = GND

-55 °C

CC

100

50

100

50

+25 °C

-55 °C

CANL

+25 °C

+125 °C

CANL

+125 °C

0

-50

-100

-150

-200

-50

-100

-150

CANH

-5.0

+125 °C

+25 °C

CANH

-5.0

+25 °C

-55 °C

-20

-15

-10

0

5.0

10

15

20

-20

-15

-10

0

5.0

10

15

20

BUS VOLTAGE (V)

FIGURE 34. DRIVER OUTPUT CURRENT vs SHORT-CIRCUIT VOLTAGE

vs TEMPERATURE

FIGURE 35. DRIVER OUTPUT CURRENT vs SHORT-CIRCUIT VOLTAGE

vs TEMPERATURE

50

80

-55 °C

V

= 3V

CC

V

= 3.6V

CC

-55 °C

40

30

60

40

20

+25 °C

V

+125 °C

OL

+25 °C

20

V

+125 °C

10

OL

0

+125 °C

+25 °C

-10

-20

-30

-40

-55 °C

V

OH

-20

-40

-60

0

0.5

1.0

1.5

2.0

2.5

3.0

0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

RECEIVER OUTPUT VOLTAGE (V)

FIGURE 36. RECEIVER OUTPUT CURRENT vs RECEIVER OUTPUT

VOLTAGE AT VCC = 3V

FIGURE 37. RECEIVER OUTPUT CURRENT vs RECEIVER OUTPUT

VOLTAGE AT VCC = 3.6V

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ISL72027SEH

Typical Performance Curves

V

= 3.3V, C = 15pF, T = +25°C; unless otherwise specified. (Continued)

CC L A

80

3.5

3.0

2.5

2.0

1.5

1.0

L TO H, V

= 3V

CC

70

60

50

40

30

20

10

0

FALL, V

= 3V

CC

H TO L, V

= 3V

CC

FALL, V

CC

= 3.6V

H TO L, V

CC

= 3.6V

RISE, V

CC

= 3.6V

L TO H, V

CC

= 3.6V

RISE, V

CC

= 3V

SKEW, V

= 3.6V

CC

SKEW, V

CC

= 3V

-55

-35

-15

5.0

25

45

65

85

105

125

-55

-35

-15

5.0

25

45

65

85

105

125

TEMPERATURE (°C)

FIGURE 38. RECEIVER PROPAGATION DELAY AND SKEW vs

TEMPERATURE

FIGURE 39. RECEIVER RISE AND FALL TIMES vs TEMPERATURE

70

60

4

D

0

50

4

-55 °C

R

40

30

20

0

3

RS = GND, R

= 60Ω

DIFF

+25 °C

2

1

0

+125 °C

CANH - CANL

10

0

1

2

3

4

5

6

V

(V)

TIME (1µs/DIV)

CC

FIGURE 40. SUPPLY CURRENT vs SUPPLY VOLTAGE vs

TEMPERATURE

FIGURE 41. FAST DRIVER AND RECEIVER WAVEFORMS

4

0

4

0

D

4

0

4

0

R

3

2

1

0

RS = 10kΩ, R

DIFF

= 60Ω

RS = 50kΩ, R

DIFF

= 60Ω

2

1

0

CANH - CANL

TIME (1µs/DIV)

FIGURE 42. MEDIUM DRIVER AND RECEIVER WAVEFORMS

FIGURE 43. SLOW DRIVER AND RECEIVER WAVEFORMS

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ISL72027SEH

Assembly Related Information

Die Characteristics

SUBSTRATE POTENTIAL

Die Dimensions

Floating

2413µm x 3322µm (95 mils x 130.79 mils)

Thickness: 305µm ±25µm (12 mils ±1 mil)

Additional Information

Interface Materials

WORST CASE CURRENT DENSITY

5

2

GLASSIVATION

1.6 x 10 A/cm

Type: 12kÅ Silicon Nitride on 3kÅ Oxide

TRANSISTOR COUNT

TOP METALLIZATION

4055

Type: 300Å TiN on 2.8µm AlCu

In Bondpads, TiN has been removed.

Weight of Packaged Device

0.31 grams

BACKSIDE FINISH

Lid Characteristics

Silicon

Finish: Gold

Potential: Grounded, tied to package pin 2

PROCESS

P6SOI

Metalization Mask Layout

8

7

6

5

4

3

2

1

RS

26

D

9

10

11

12

NC

GND

25

24

CANH

CANL

GND_ESD

VCC

13

14

VCC_VREF

23

VREF

NC

22

15

R

16

17

18 19

20

21

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ISL72027SEH

TABLE 2. ISL72027SEH DIE LAYOUT X-Y COORDINATES

X

Y

PAD NUMBER

PAD NAME

NC

(µm)

X

Y

1

90.0

901.4

767.4

1365.6

901.85

563.25

342.25

119.42

-115.05

-371.08

-1350.0

-1394.95

-1307.3

-1072.3

2.15

2

NC

3

NC

90.0

-183.23

-333.25

-483.25

-633.25

-783.25

-933.25

-931.1

-711.1

-561.1

-411.1

-261.1

-111.1

38.9

4

NC

90.0

5

NC

90.0

6

NC

90.0

7

NC

90.0

8

NC

90.0

9

D

110.0

90.0

110.0

180.0

110.05

180.0

180.05

180.0

90.0

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

NC

GND

GND_ESD

VCC

VCC_VREF

R

NC

90.0

NC

90.0

NC

90.0

NC

90.0

NC

90.0

NC

110.0

180.0

180.05

180.0

756.9

775.3

772.1

VREF

CANL

CANH

RS

772.1

848.1

343.33

1140.6

NOTE: Origin of coordinates is the center of the die. NC - No Connect

For additional products, see www.intersil.com/en/products.html

Intersil products are manufactured, assembled and tested utilizing ISO9001 quality systems as noted

in the quality certifications found at www.intersil.com/en/support/qualandreliability.html

Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time

without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be

accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third

parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.

For information regarding Intersil Corporation and its products, see www.intersil.com

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ISL72027SEH

Revision History The revision history provided is for informational purposes only and is believed to be accurate, but not warranted.

Please go to the web to make sure that you have the latest revision.

DATE

REVISION

CHANGE

August 16, 2016

FN8763.3 “Absolute Maximum Ratings” on page 5 changed voltage value in VCC to GND With/Without Ion Beam

From: -0.3V to 4.5V To: -0.3V to 5.5V.

April 29, 2016

FN8763.2 - Updated title.

- Updated the test condition for Output Rise Time on page 7.

- Changed maximum data rate from 1Mbps to 5Mbps in the following locations:

- Second paragraph and “Features” section on page 1.

- In “Overview” on page 11.

November 9, 2015

October 26, 2015

FN8763.1 Absolute Maximum Ratings table on page 5: changed the value for “CANH, CANL, VREF Under Ion Beam” from

±16V to ±18V.

FN8763.0 Initial Release

About Intersil

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address some of the largest markets within the industrial and infrastructure, mobile computing and high-end consumer markets.

For the most updated datasheet, application notes, related documentation and related parts, please see the respective product

information page found at www.intersil.com.

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Reliability reports are also available from our website at www.intersil.com/support.