intersil ISL3159E DATA SHEET

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ISL3159E

Data Sheet July 26, 2007

±15kV ESD Protected, +125°C, 40Mbps,
5V, PROFIBUS®, Full Fail-safe,
RS-485/RS-422 Transceivers

Intersil’s ISL3159E is a ±15kV IEC61000 ESD Protected, 5V
powered, single transceiver that meets both the RS-485 and
RS-422 standards for balanced communication. It also
features the larger output voltage and higher data rate - up to
40Mbps - required by high speed PROFIBUS applications,
and is offered in Industrial and Extended Industrial (-40°C to
+125°C) temperature ranges. The low bus currents
(+220μA/-150μA) present a “1/5 unit load” to the RS-485 bus,
thus allowing up to 160 transceivers on the network without
violating the RS-485 specification’s load limit, and without
using repeaters.

This transceiver requires a 5V ±10% tolerance supply, and
delivers at least a 2.1V differential output voltage over this
supply range. This translates into b etter noise i mmunity
(data integrity), longer reach, or the ability to drive up to six
120Ω terminations in “star” or other non-standard bus
topologies, at the exceptional 40Mbps data rate.

SCSI applications benefit from the ISL3159’s low receiver
and transmitter part-to-part skews, which make it perfect for
high speed parallel applications where large numbers of bits
must be simultaneously captured. The low bit-to-bit skew
eases the timing constraints on the data latching signal.

Receiver (Rx) inputs feature a “Full Fail-Safe” design, which
ensures a logic high Rx output if Rx inputs are floating,
shorted, or terminated but undriven. Rx outputs feature high
drive levels (typically >30mA @ V
of optically isolated interfaces.

Hot Plug circuitry ensures that the Tx and Rx outputs remain
in a high impedance state while the power supply stabilizes.

Driver (Tx) outputs are short circuit protected, even for
voltages exceeding the power supply voltage. Additionally,
on-chip thermal shutdown circuitry disables the Tx outputs to
prevent damage if power dissipation becomes excessive.

= 1V) to ease the design

OL

FN6364.0

Features

• IEC61000 ESD Protection on RS-485 I/O Pins . . . ±15kV

- Class 3 HBM ESD Level on all Other Pins. . . . . . >9kV

• Large Differential V
Better Noise Immunity, or drive up to 6 Terminations

• High Data Rates. . . . . . . . . . . . . . . . . . . . . up to 40Mbps

• Specified for +125°C Operation

• 11/13ns (Max) Tx/Rx Propagation Delays; 1.5ns (Max)
Skew

• 1/5 Unit Load Allows up to 160 Devices on the Bus

• Full Fail-Safe (Open, Shorted, Terminated/Undriven)
Receiver

• High Rx I
Applications

• Hot Plug - Tx and Rx Outputs Remain Three-State During
Power-Up

• Low Quiescent Supply Current . . . . . . . . . . . . . . . . . 4mA

• Low Current Shutdown Mode. . . . . . . . . . . . . . . . . . . 1μA

• -7V to +12V Common Mode Input Voltage Range

• Three-State Rx and Tx Outputs

• Operates from a Single +5V Supply (10% Tolerance)

• Current Limiting and Thermal Shutdown for driver
Overload Protection

• Pb-Free Plus Anneal Available (RoHS Compliant)

to Drive Opto-Couplers for Isolated

OL

. . . . . . . . . . . . . . . 2.8V into 54Ω

OUT

Applications

•PROFIBUS® DP and FMS Networks

• SCSI “Fast 40” Drivers and Receivers

• Motor Controller/Position Encoder Systems

• Factory Automation

• Field Bus Networks

• Security Networks

• Building Environmental Control Systems

• Industrial/Process Control Networks

1

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

1-888-INTERSIL or 1-888-468-3774

| Intersil (and design) is a registered trademark of Intersil Americas Inc.

All other trademarks mentioned are the property of their respective owners.

Copyright Intersil Americas Inc. 2007. All Rights Reserved

ISL3159E

Ordering Information

PART NUMBER

(Notes 1, 2) PART MARKING

ISL3159EIBZ 3159 EIBZ -40 to +85 8 Ld SOIC M8.15
ISL3159EIUZ 3159Z -40 to +85 8 Ld MSOP M8.118
ISL3159EIRZ 159Z -40 to +85 10 Ld DFN L10.3x3C
ISL3159EFBZ 3159 EFBZ -40 to +125 8 Ld SOIC M8.15
ISL3159EFUZ 159FZ -40 to +125 8 Ld MSOP M8.118
ISL3159EFRZ 59FZ -40 to +125 10 Ld DFN L10.3x3C

NOTES:

1. Add “-T” suffix for tape and reel. Please refer to TB347 for details on reel specifications.

2. Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate
termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are
MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.

TEMP. RANGE

(°C)

PACKAGE

(Pb-Free) PKG. DWG. #

Pinouts

(10 LD DFN)

TOP VIEW

1
2
3
4
5

ISL3159E

V

10

CC

NC

9

B/Z

8

A/Y

7

GND

6

ISL3159E

(8 LD SOIC, MSOP)

TOP VIEW

RO

1

R

2

RE
DE

3

D

4

DI

8

V

CC

7

B/Z

6

A/Y

5

GND

RO

RE
DE

DI

NC

Truth T able

TRANSMITTING

INPUTS OUTPUTS

RE

X1101
X1010
0 0 X High-Z High-Z
1 0 X High-Z * High-Z *

NOTE: *Shutdown Mode

DE DI B/Z A/Y

Truth Table

RECEIVING

INPUTS OUTPUT

RE

00 ≥-0.05V 1
00 ≤-0.2V 0
0 0 Inputs Open/Shorted 1
1 1 X High-Z
10 X High-Z *

NOTE: *Shutdown Mode

DE A-B RO

2

FN6364.0

July 26, 2007

ISL3159E

Pin Descriptions

PIN FUNCTION

RO Receiver output: If A-B ≥ -50mV, RO is high; If A-B ≤ -200mV, RO is low; RO = High if A and B ar e unconnected (floating) o r shorted, or

connected to a terminated bus that is undriven.

RE

Receiver output enable. RO is enabled when RE is low; RO is high impedance when RE is high. If the Rx enable function isn’t
required, connect RE

directly to GND.

DE Driver output enable. The driver outputs, Y and Z, are enabled by bringing DE high. They are high impedance when DE is low . If the

Tx enable function isn’t required, connect DE to V

through a 1kΩ or greater resistor.

CC

DI Driver input. A low on DI forces output Y low and output Z high. Similarly, a high on DI forces output Y high and output Z low.

GND Ground connection. This is also the potential of the DFN thermal pad.

A/Y ±15kV

IEC61000 ESD Protected RS-485/422 level, noninverting receiver input and noninverting driver output. Pin is an input (A) if

DE = 0; pin is an output (Y) if DE = 1.

B/Z ±15kV

IEC61000 ESD Protected RS-485/422 level, inverting receiver input and inverting driver output. Pin is an input (B) if DE = 0;

pin is an output (Z) if DE = 1.

V

System power supply input (4.5V to 5.5V).

CC

NC No Connection.

Typical Operating Circuit

ISL3159E

+5V

+

8

V

RO

1
2

RE

3

DE

CC

R

7

B/Z
A/Y

6

SOIC AND MSOP PIN NUMBERS SHOWN

0.1μF

R

T

0.1μF

R

T

+

7
6

B/Z
A/Y

V

+5V

CC

8

4

DI

D

3

DE

2

RE

DI

4

D

GND

5

R

GND

5

RO

1

3

FN6364.0

July 26, 2007

ISL3159E

Absolute Maximum Ratings Thermal Information

VCC to GND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V

Input Voltages

DI, DE, RE

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 7V

Input/Output Voltages

A/Y, B/Z . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -9V to +13V

RO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to (V

CC

+0.3V)

Short Circuit Duration

Y, Z. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous

ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . See Specification Table

Operating Conditions

Temperature Range

ISL3159EF . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +125°C

ISL3159EI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +85°C

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.

NOTE:

is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.

3. θ

JA

is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See

4. θ

JA

Tech Brief TB379.

Thermal Resistance (Typical)

θ

JA

(°C/W)

8 Ld SOIC Package (Note 3) . . . . . . . . . . . . . . . . . . 105

8 Ld MSOP Package (Note 3) . . . . . . . . . . . . . . . . . 140

10 Ld DFN Package (Note 4). . . . . . . . . . . . . . . . . . 75

Maximum Junction Temperature (Plastic Package) . . . . . . +150°C

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

Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below

http://www.intersil.com/pbfree/Pb-FreeReflow.asp

Electrical Specifications Test Conditions: V

(Note 5)

PARAMETER SYMBOL TEST CONDITIONS

DC CHARACTERISTICS

Driver Differential V

OUT

Change in Magnitude of Driver
Differential V
Complementary Output States

Driver Common-Mode V

OUT

for

OUT

Change in Magnitude of Driver
Common-Mode V
Complementary Output States

OUT

for

Logic Input High Voltage V
Logic Input Low Voltage V
Logic Input Current I
Input Current (A/Y, B/Z) I

Driver Short-Circuit Current,

= High or Low

V

O

Differential Capacitance C
Receiver Differential Threshold

Voltage
Receiver Input Hysteresis ΔV
Receiver Output High Voltage V

V

OD

ΔV

ODRL

V

OC

ΔV

OCRL

IH

IL
IN1
IN2

I

OSD1

D

V

TH

TH

OHIO

No Load Full - - V
RL = 100Ω (RS-422) (Figure 1A) Full 2.6 3.4 - V
R

= 54Ω (RS-485)

L

(Figure 1A)

R

= 60Ω, -7V ≤ VCM ≤ 12V (Figure 1B),

L

(Note 14)

= 54Ω or 100Ω (Figure 1A) Full - 0.01 0.2 V

RL = 54Ω or 100Ω (Figure 1A), (Note 14) Full - 2 3 V

= 54Ω or 100Ω (Figure 1A) Full - 0.01 0.2 V

DI, DE, RE Full 2 - - V
DI, DE, RE Full - - 0.8 V
DI = DE = RE = 0V or V
DE = 0V, VCC = 0V or

5.5V

DE = VCC, -7V ≤ VY or VZ ≤ 12V (Note 7) Full - - ±250 mA

A/Y to B/Z 25 - 9 - pF

-7V ≤ VCM ≤ 12V Full -200 - -50 mV

VCM = 0V 25 - 28 - mV

= -8mA, VID = -50mV Full VCC - 0.5 - - V

= 4.5V to 5.5V; Unless Otherwise Specified. Typicals are at VCC = 5V, TA = +25°C,

CC

TEMP

(°C)

I Suffix Fu ll 2.1 2.8 V
F Suffix, (Note 14) Full 2.1 2.8 V

MIN

(NOTE 15) TYP

MAX

(NOTE 15) UNITS

CC

CC
CC

Full 1.9 2.7 - V

CC

Full -2 - 2 μA

VIN = 12V Full - - 220 μA

= -7V Full -160 - - μA

V

IN

V
V

4

FN6364.0

July 26, 2007

ISL3159E

Electrical Specifications Test Conditions: V

(Note 5) (Continued)

PARAMETER SYMBOL TEST CONDITIONS

Receiver Output Low Voltage V
Receiver Output Low Current I
Three-State (high impedance)

Receiver Output Current
Receiver Input Resistance R
Receiver Short-Circuit Current I

OLIO

OL

I

OZR

IN

OSR

VOL = 1V, VID = -200mV Fu ll 25 40 - mA

0.4V ≤ VO ≤ 2.4V Full -1 0.015 1 μA

-7V ≤ VCM ≤ 12V Full 54 80 - kΩ
0V ≤ VO ≤ V

= 4.5V to 5.5V; Unless Otherwise Specified. Typicals are at VCC = 5V, TA = +25°C,

CC

TEMP

(°C)

MIN

(NOTE 15) TYP

MAX

(NOTE 15) UNITS

= +10mA, VID = -200mV Full - - 0.4 V

CC

Full ±20 - ±110 mA

SUPPLY CURRENT

No-Load Supply Current (Note 6) I
Shutdown Supply Current I

CC

SHDN

DI = DE = 0V or V

CC

DE = 0V, RE = VCC, DI = 0V or V

CC

Full - 2.6 4 mA
Full - 0.05 1 μA

ESD PERFORMANCE

RS-485 Pins (A/Y, B/Z) IEC61000-4-2, Air-Gap Discharge Method 25 - ±15 - kV

IEC61000-4-2, Contact Discharge Method 25 - ±8-kV
Human Body Model, From Bus Pins to GND 25 - ±16.5 - kV

All Pins HBM, per MIL-STD-883 Method 3015 25 - > ±9-kV

Machine Model 25 - > ±400 - V

DRIVER SWITCHING CHARACTERISTICS

Maximum Data Rate f
Driver Differential Output Delay t
Driver Differential Output Skew t
Prop Delay Part-to-Part Skew t
Driver Differential Rise or Fall

MAX

SKEWRD
SKP-PRD

t

R

VOD ≥ ±1.5V, RD = 54Ω, CL = 100pF (Figure 4) Full 40 - - Mbps
RD = 54Ω, CD = 50pF (Figure 2) Full - 8 12 ns

DD

= 54Ω, CD = 50pF (Figure 2) Full - 0.5 1.5 ns
= 54Ω, CD = 50pF (Figure 2), (Note 13) Full - - 4 ns

, tFRD = 54Ω, CD = 50pF (Figure 2) Full 2 5 8 ns

Time
Driver Enable to Output High t

RL = 110Ω, CL = 50pF, SW = GND (Figure 3),

ZH

Full - 13 20 ns

(Note 8)

Driver Enable to Output Low t

RL = 110Ω, CL = 50pF, SW = VCC (Figure 3),

ZL

Full - 11 20 ns

(Note 8)

Driver Enable Time Skew t

ENSKEW|tZH

Driver Disable from Output High t
Driver Disable from Output Low t
Driver Disable Time Skew t

DISSKEW|tHZ

Time to Shutdown t
Driver Enable from Shutdown to

Output High
Driver Enable from Shutdown to

t

ZH(SHDN)RL

t

ZL(SHDN)RL

Output Low

HZ
LZ

SHDN

(Y or Z) - tZL (Z or Y)| Full - 2.5 - ns
RL = 110Ω, CL = 50pF, SW = GND (Figure 3), Full - 14 20 ns
RL = 110Ω, CL = 50pF, SW = VCC (Figure 3), Full - 12 20 ns

(Y or Z) - tLZ (Z or Y)| Full - 3 - ns
(Note 10) Full 60 - 600 ns

= 110Ω, CL = 50pF, SW = GND (Figure 3),

Full - - 1000 ns

(Notes 10, 11)

= 110Ω, CL = 50pF, SW = VCC (Figure 3),

Full - - 1000 ns

(Notes 10, 11)

RECEIVER SWITCHING CHARACTERISTICS

Maximum Data Rate f
Receiver Input to Output Delay t
Receiver Skew | t

PLH

- t

PHL

PLH

|t
Prop Delay Part-to-Part Skew t
Receiver Enable to Output High t

MAX

SKD

SKP-P

VID = ±1.5V Full 40 - - Mbps

, t

(Figure 5) Full - 9 13 ns

PHL

(Figure 5) Full - 0 1.5 ns
(Figure 5), (Note 13) Full - - 4 ns
RL = 1kΩ, CL = 15pF, SW = GND (Figure 6),

ZH

(Note 9)

Full - - 12 ns

5

FN6364.0

July 26, 2007