intersil ISL3155E, ISL3156E, ISL3158E DATA SHEET
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ISL3150E, ISL3152E, ISL3153E,
ISL3155E, ISL3156E, ISL3158E
Data Sheet
±16.5kV ESD (IEC61000-4-2) Protected,
Large Output Swing, 5V, Full Fail-Safe, 1/8
Unit Load, RS-485/RS-422 Transceivers
The ISL315XE are BiCMOS, IEC61000 ESD protected, 5V
powered, single transceivers that meet both the RS-485 and
RS-422 standards for balanced communication. Each driver
output and receiver input is protected against
strikes without latch-up.
The ISL315XE transmitters all deliver exceptional differential
output voltages (2.4V min), into the RS-485 required 54Ω
load, for better noise immunity or to allow up to eight 120Ω
terminations in “star” or other non-standard bus topologies.
These devices have very low bus currents (+125μA/-75μA),
so they present a true “1/8 unit load” to the RS-485 bus. This
allows up to 256 transceivers on the network without violating
the RS-485 specification’s 32 unit load maximum, and without
using repeaters.
Receiver (Rx) inputs feature a “Full Fail-Safe” design, which
ensures a logic high Rx output if Rx inputs are floating,
shorted, or on a terminated but undriven bus. Rx output s
feature high drive levels - typically 28mA @ V
the design of optocoupled isolated interfaces).
The ISL3150E, ISL3152E, ISL3153E, ISL3155E utilize slew
rate limited drivers which reduce EMI, and minimize reflections
from improperly terminated transmission lines, or unterminated
stubs in multidrop and multipoint applications.
±16.5kV ESD
= 1V (to ease
OL
December 14, 2006
FN6363.0
Features
• High Driver VOD. . . . . . . . . . . . . .2.4V (Min) @ RD = 54Ω
Better Noise Immunity, or Drive Up to 8 Terminations
• IEC61000 ESD Protection on RS-485 I/O Pins
- Class 3 ESD Level on all Other Pins . . . . . . >7kV HBM
• Tiny MSOP Packages Save 50% Board Space
• Full Fail-safe (Open, Short, Terminated and Undriven)
Receivers
• High Rx I
to Drive Opto-Couplers for Isolated
OL
Applications
• Hot Plug Circuitry - Tx and Rx Outputs Remain
Three-State During Power-up/Power-Down
• True 1/8 Unit Load Allows up to 256 Devices on the Bus
• Specified for Single 5V, 10% Tolerance, Supplies
• High Data Rates. . . . . . . . . . . . . . . . . . . . . up to 20Mbps
• Low Quiescent Supply Current . . . . . . . . . . . . . . . 600
Ultra Low Shutdown Supply Current . . . . . . . . . . . . 70nA
• -7V to +12V Common Mode Input Voltage Range
• Half and Full Duplex Pinouts
• Pb-Free Packaging (RoHS Compliant)
• Three-State Rx and Tx Outputs
• Current Limiting and Thermal Shutdown for Driver
Overload Protection
. . . ±16.5kV
μA
Hot Plug circuitry ensures that the Tx and Rx outputs remain
in a high impedance state until the power supply has
stabilized, and the Tx outputs are fully sho rt circuit protected.
The ISL3150E, ISL3153E, ISL3156E are configured for full
duplex applications. The half duplex versions multiplex the
Rx inputs and Tx outputs to allow transceivers with output
disable functions in 8 Ld packages.
Applications
• Utility Meters and Automated Meter Reading Systems
• High Node Count Systems
• PROFIBUS® and Field Bus Networks, and Factory
Automation
• Security Camera Networks
• Building Lighting and Environmental Control Systems
• Industrial/Process Control Networks
TABLE 1. SUMMARY OF FEATURES
PART
NUMBER
ISL3150E Full 0.115 Yes Yes 256 Yes 600 Yes 10, 14
ISL3152E Half 0.115 Yes Yes 256 Yes 600 Yes 8
ISL3153E Full 1 Yes Yes 256 Yes 600 Yes 10, 14
ISL3155E Half 1 Yes Yes 256 Yes 600 Yes 8
ISL3156E Full 20 No Yes 256 Yes 600 Yes 10, 14
ISL3158E Half 20 No Yes 256 Yes 600 Yes 8
HALF/FULL
DUPLEX
DAT A RA TE
(Mbps)
1
SLEW-RATE
LIMITED? HOT PLUG
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
# DEVICES
ON BUS
Rx/Tx
ENABLE?
| Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2004-2006. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
QUIESCENT
I
(μA)
CC
LOW POWER
SHUTDOWN?
PIN
COUNT
ISL3150E, ISL3152E, ISL3153E, ISL3155E, ISL3156E, ISL3158E
Pinouts
ISL3152E, ISL3155E, ISL3158E
(8 LD MSOP, 8 LD SOIC)
TOP VIEW
RO
RE
DE
1
R
2
3
D
4
DI
8
V
CC
7
B/Z
6
A/Y
5
GND
ISL3150E, ISL3153E, ISL3156E
(10 LD MSOP)
TOP VIEW
RO
RE
DE
GND
1
R
2
3
DI
D
4
5
V
10
CC
9
A
8
B
7
Z
6
Y
ISL3150E, ISL3153E, ISL3156E
(14 LD SOIC)
TOP VIEW
NC
RO
RE
DE
GND
GND
1
2
R
3
4
DI
D
5
6
7
14
V
CC
NC
13
A
12
B
11
Z
10
9
Y
NC
8
Ordering Information
PART NUMBER (Notes 1, 2) PART MARKING TEMP. RANGE (°C) PACKAGE PKG. DWG. #
ISL3150EIBZ 3150EIBZ -40 to +85 14 Ld SOIC (Pb-free) M14.15
ISL3150EIUZ 3150Z -40 to +85 10 Ld MSOP (Pb-free) M10.118
ISL3152EIBZ 3152EIBZ -40 to +85 8 Ld SOIC (Pb-free) M8.15
ISL3152EIUZ 3152Z -40 to +85 8 Ld MSOP (Pb-free) M8.118
ISL3153EIBZ 3153EIBZ -40 to +85 14 Ld SOIC (Pb-free) M14.15
ISL3153EIUZ 3153Z -40 to +85 10 Ld MSOP (Pb-free) M10.118
ISL3155EIBZ 3155EIBZ -40 to +85 8 Ld SOIC (Pb-free) M8.15
ISL3155EIUZ 3155Z -40 to +85 8 Ld MSOP (Pb-free) M8.118
ISL3156EIBZ 3156EIBZ -40 to +85 14 Ld SOIC (Pb-free) M14.15
ISL3156EIUZ 3156Z -40 to +85 10 Ld MSOP (Pb-free) M10.118
ISL3158EIBZ 3158EIBZ -40 to +85 8 Ld SOIC (Pb-free) M8.15
ISL3158EIUZ 3158Z -40 to +85 8 Ld MSOP (Pb-free) M8.118
NOTES:
1. Units also available in Tape and Reel; Add “-T” to suffix.
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.
2
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ISL3150E, ISL3152E, ISL3153E, ISL3155E, ISL3156E, ISL3158E
Truth Ta bles
TRANSMITTING
INPUTS OUTPUTS
RE
X1101
X1010
0 0 X High-Z High-Z
1 0 X High-Z * High-Z *
NOTE: *Shutdown Mode (See Note 9).
DE DI Z Y
RE
00 X≥ -0.05V 1
00 X≤ -0.2V 0
0 0 X Inputs
1 0 0 X High-Z *
1 1 1 X High-Z
NOTE: *Shutdown Mode (See Note 9).
DE
Half DuplexDEFull Duplex
RECEIVING
INPUTS OUTPUT
A-B RO
Open/Shorted
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 are unconnected (floating ) or sho rted.
RE
DE Driver output enable. The driver outputs, Y and Z, are enabled by bringing DE high. They are high impedance when DE is low.
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.
Receiver output enable. RO is enabled when RE is low; RO is high impedance when RE is high.
1
GND Ground connection.
A/Y ±16.5kV IEC61000 ESD Protected RS-485/422 level, noninverting receiver input and noninverting driver output. Pin is an input if
B/Z ±16.5kV IEC61000 ESD Protected RS-485/422 level, Inverting receiver input and inverting driver output. Pin is an input if DE = 0; pin
V
NC No Connection.
DE =0; pin is an output if DE = 1.
is an output if DE = 1.
A ±16.5kV IEC61000 ESD Protected RS-485/422 level, noninverting receiver input.
B ±16.5kV IEC61000 ESD Protected RS-485/422 level, inverting receiver input.
Y ±16.5kV IEC61000 ESD Protected RS-485/422 level, noninverting driver output.
Z ±16.5kV IEC61000 ESD Protected RS-485/422 level, inverting driver output.
System power supply input (4.5V to 5.5V).
CC
3
FN6363.0
December 14, 2006
ISL3150E, ISL3152E, ISL3153E, ISL3155E, ISL3156E, ISL3158E
Typical Operating Circuit
+5V
8
V
RO
1
2
RE
3
DE
DI
4
2
RO
3
RE
4
DE
5
DI
CC
R
B/Z
A/Y
D
GND
5
+5V
14
V
CC
A
R
B
Z
D
Y
GND
6, 7
ISL3152E, ISL3155E, ISL3158E
+
0.1μF
R
T
7
6
0.1μF
R
T
+
7
6
ISL3150E, ISL3153E, ISL3156E (SOIC PIN NUMBERS SHOWN)
+
0.1μF
R
12
11
10
9
T
0.1μF
R
T
+
+5V
8
V
CC
B/Z
A/Y
R
GND
5
+5V
14
V
CC
Y
9
Z
10
B
11
R
A
12
GND
6, 7
4
DI
D
3
DE
2
RE
1
RO
DI
5
D
4
DE
3
RE
RO
2
4
FN6363.0
December 14, 2006
ISL3150E, ISL3152E, ISL3153E, ISL3155E, ISL3156E, ISL3158E
Absolute Maximum Ratings Thermal Information
VCC to Ground. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V
Input Voltages
DI, DE, RE
. . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to (VCC + 0.3V)
Input/Output Voltages
A/Y, B/Z, A, B, Y, Z . . . . . . . . . . . . . . . . . . . . . . . . . . . -9V to +13V
A/Y, B/Z, A, B, Y, Z (Transient Pulse Through 100Ω). . . . . . ±25V
RO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to (V
Short Circuit Duration
CC
+0.3V)
Y, Z. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous
ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . See Specification Table
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
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
Thermal Resistance (Typical, Note 3)
θ
(°C/W)
JA
8 Ld SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . . 105
8 Ld MSOP Package . . . . . . . . . . . . . . . . . . . . . . . . 140
10 Ld MSOP Package . . . . . . . . . . . . . . . . . . . . . . . 130
14 Ld SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . 130
Maximum Junction Temperature (Plastic Package) . . . . . . +150°C
Maximum Storage Temperature Range. . . . . . . . . .-65°C to +150°C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . +300°C
(Lead Tips Only)
Operating Conditions
Temperature Range. . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +85°C
Electrical Specifications Test Conditions: V
(Note 4)
PARAMETER SYMBOL TEST CONDITIONS
DC CHARACTERISTICS
Driver Differential V
Driver Differential V
Change in Magnitude of Driver
Differential V
Complementary Output States
OUT
Driver Common-Mode V
Change in Magnitude of Driver
Common-Mode V
Complementary Output States
Logic Input High Voltage V
Logic Input Low Voltage V
DI Input Hysteresis Voltage V
Logic Input Current I
Input Current (A, B, A/Y, B/Z) I
Output Leakage Current (Y , Z) (Full
Duplex Versions Only)
Output Leakage Current (Y, Z)
in Shutdown Mode (Full Duplex)
Driver Short-Circuit Current,
V
= High or Low
O
Receiver Differential Threshold
Voltage
(No load) V
OUT
(Loaded) V
OUT
for
OUT
for
OUT
OD1
OD2
ΔV
V
OC
ΔV
HYS
IN1
IN2
I
IN3
I
IN4
I
OSD1
V
TH
RL = 100Ω (RS-422) (Figure 1A) Full 2.8 3.6 - V
R
RL = 15Ω (Eight 120Ω terminations) (Note 13) 25 - 1.65 - V
R
RL = 54Ω or 100Ω (Figure 1A) Full - 0.01 0.2 V
OD
RL = 54Ω or 100Ω (Figure 1A) Full - - 3.15 V
RL = 54Ω or 100Ω (Figure 1A) Full - 0.01 0.2 V
OC
DE, DI, RE Full 2 - - V
IH
DE, DI, RE Full - - 0.8 V
IL
DE, DI, RE Full -2 - 2 μA
DE = 0V, VCC = 0V or 5.5V VIN = 12V Full - 70 125 μA
RE = 0V , DE = 0V, VCC = 0V
or 5.5V
RE = VCC, DE = 0V, VCC =
0V or 5.5V
DE = VCC, -7V ≤ VY or VZ ≤ 12V (Note 6) Full - - ±250 mA
-7V ≤ VCM ≤ 12V Full -200 -90 -50 mV
= 4.5V to 5.5V; Unless Otherwise Specified. Typicals are at VCC = 5V, TA = +25°C
CC
TEMP
(°C) MIN TYP MAX UNITS
Full - - V
= 54Ω (RS-485) (Figure 1A) Full 2.4 3.1 V
L
= 60Ω, -7V ≤ VCM ≤ 12V (Figure 1B) Full 2.4 3 - V
L
CC
CC
25 - 100 - mV
V
= -7V Full -75 55 - μA
IN
VIN = 12V Full - 1 40 μA
V
= -7V Full -40 -9 - μA
IN
VIN = 12V Full - 1 20 μA
= -7V Full -20 -9 - μA
V
IN
V
V
5
FN6363.0
December 14, 2006
ISL3150E, ISL3152E, ISL3153E, ISL3155E, ISL3156E, ISL3158E
Electrical Specifications Test Conditions: V
(Note 4) (Continued)
= 4.5V to 5.5V; Unless Otherwise Specified. Typicals are at VCC = 5V, TA = +25°C
CC
TEMP
PARAMETER SYMBOL TEST CONDITIONS
Receiver Input Hysteresis ΔV
Receiver Output High Voltage V
Receiver Output Low Voltage V
Receiver Output Low Current I
Three-State (high impedance)
OH
OL
OL
I
OZR
VCM = 0V 25 - 20 - mV
TH
IO = -8mA, VID = -50mV Full VCC - 1.2 4.3 - V
IO = -8mA, VID = -200mV Full - 0.25 0.4 V
VO = 1V, VID = -200mV Full 20 28 - mA
0.4V ≤ VO ≤ 2.4V Full -1 0.03 1 μA
(°C) MIN TYP MAX UNITS
Receiver Output Current
Receiver Input Resistance R
Receiver Short-Circuit Current I
OSR
-7V ≤ VCM ≤ 12V Full 96 160 - kΩ
IN
0V ≤ VO ≤ V
CC
Full ±765±85 mA
SUPPLY CURRENT
No-Load Supply Current (Note 5) I
Shutdown Supply Current I
CC
SHDN
Half Duplex Versions, DE = VCC, RE = X,
DI = 0V or V
All Versions, DE = 0V, RE
Versions, DE = V
DE = 0V, RE = VCC, DI = 0V or V
CC
, RE = X. DI = 0V or V
CC
= 0V, or Full Duplex
CC
Full - 650 800 μA
Full - 550 700 μA
CC
Full - 0.07 3 μA
ESD PERFORMANCE
RS-485 Pins (A, Y, B, Z, A/Y, B/Z) IEC61000-4-2, Air-Gap
Discharge Method
1/2 Duplex 25 - ±16.5 - kV
Full Duplex 25 - ±10 - kV
IEC61000-4-2, Contact Discharge Method 25 - ±9-kV
Human Body Model, From Bus Pins to GND 25 - ±16.5 - kV
All Pins HBM, per MIL-STD-883 Method 3015 25 - ±7-kV
MM 25 - 400 - V
DRIVER SWITCHING CHARACTERISTICS (115kbps Versions; ISL3150E, ISL3152E)
Driver Differential Output Delay t
PLH, tPHLRDIFF
Driver Differential Output Skew t
Driver Differential Rise or Fall Time t
Maximum Data Rate f
Driver Enable to Output High t
SKEW
, t
R
MAX
ZH
F
= 54Ω, CL = 100pF (Figure 2) Full 500 970 1300 ns
R
= 54Ω, CL = 100pF (Figure 2) Full - 12 50 ns
DIFF
R
= 54Ω, CL = 100pF (Figure 2) Full 700 1100 1600 ns
DIFF
CD = 820pF (Figure 4, Note 12) Full 115 2000 - kbps
RL = 500Ω, CL = 100pF, SW = GND (Figure 3),
Full - 300 600 ns
(Note 7)
Driver Enable to Output Low t
Driver Disable from Output Low t
Driver Disable from Output High t
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
ZL
LZ
HZ
SHDN
RL = 500Ω, CL = 100pF, SW = VCC (Figure 3),
Full - 130 500 ns
(Note 7)
RL = 500Ω, CL = 15pF, SW = VCC (Figure 3) Full - 50 65 ns
RL = 500Ω, CL = 15pF, SW = GND (Figure 3) Full - 35 60 ns
(Notes 9, 12) Full 60 160 600 ns
= 500Ω, CL = 100pF, SW = GND (Figure 3),
Full - - 250 ns
(Notes 9, 10)
= 500Ω, CL = 100pF, SW = VCC (Figure 3),
Full - - 250 ns
(Notes 9, 10)
DRIVER SWITCHING CHARACTERISTICS (1Mbps Versions; ISL3153E, ISL3155E)
Driver Differential Output Delay t
Driver Differential Output Skew t
PLH, tPHLRDIFF
SKEW
= 54Ω, CL = 100pF (Figure 2) Full 150 270 400 ns
R
= 54Ω, CL = 100pF (Figure 2) Full - 3 10 ns
DIFF
6
FN6363.0
December 14, 2006
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