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PDF ISL3159E Data sheet ( Hoja de datos )
| Número de pieza | ISL3159E | |
| Descripción | +-15kV ESD Protected / 125C 40Mbps 5V - PROFIBUS / Full Fail-safe RS-485/RS-422 Transceivers | |
| Fabricantes | Intersil | |
| Logotipo |  |
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Data Sheet
July 26, 2007
ISL3159E
FN6364.0
±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 better noise immunity
(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 @ VOL = 1V) to ease the design
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.
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Features
• IEC61000 ESD Protection on RS-485 I/O Pins . . . ±15kV
- Class 3 HBM ESD Level on all Other Pins . . . . . . >9kV
• Large Differential VOUT . . . . . . . . . . . . . . . 2.8V into 54Ω
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 IOL to Drive Opto-Couplers for Isolated
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)
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.
Copyright Intersil Americas Inc. 2007. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
1 page  
ISL3159E
Electrical Specifications Test Conditions: VCC = 4.5V to 5.5V; Unless Otherwise Specified. Typicals are at VCC = 5V, TA = +25°C,
(Note 5) (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
TEMP MIN
MAX
(°C) (NOTE 15) TYP (NOTE 15) UNITS
Receiver Output Low Voltage
Receiver Output Low Current
Three-State (high impedance)
Receiver Output Current
VOL
IOL
IOZR
IO = +10mA, VID = -200mV
VOL = 1V, VID = -200mV
0.4V ≤ VO ≤ 2.4V
Full -
- 0.4 V
Full 25
40
- mA
Full -1 0.015 1
μA
Receiver Input Resistance
Receiver Short-Circuit Current
SUPPLY CURRENT
RIN
IOSR
-7V ≤ VCM ≤ 12V
0V ≤ VO ≤ VCC
Full 54
Full ±20
80 - kΩ
-
±110
mA
No-Load Supply Current (Note 6) ICC DI = DE = 0V or VCC
Full - 2.6 4 mA
Shutdown Supply Current
ISHDN DE = 0V, RE = VCC, DI = 0V or VCC
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
fMAX VOD ≥ ±1.5V, RD = 54Ω, CL = 100pF (Figure 4) Full
40
-
- Mbps
Driver Differential Output Delay
tDD RD = 54Ω, CD = 50pF (Figure 2)
Full -
8 12 ns
Driver Differential Output Skew
tSKEW RD = 54Ω, CD = 50pF (Figure 2)
Full -
0.5 1.5 ns
Prop Delay Part-to-Part Skew
tSKP-P RD = 54Ω, CD = 50pF (Figure 2), (Note 13)
Full
-
-
4 ns
Driver Differential Rise or Fall
Time
tR, tF RD = 54Ω, CD = 50pF (Figure 2)
Full 2 5 8 ns
Driver Enable to Output High
tZH RL = 110Ω, CL = 50pF, SW = GND (Figure 3), Full
(Note 8)
-
13 20 ns
Driver Enable to Output Low
tZL RL = 110Ω, CL = 50pF, SW = VCC (Figure 3), Full
(Note 8)
-
11 20 ns
Driver Enable Time Skew
Driver Disable from Output High
Driver Disable from Output Low
Driver Disable Time Skew
Time to Shutdown
Driver Enable from Shutdown to
Output High
tENSKEW |tZH (Y or Z) - tZL (Z or Y)|
tHZ RL = 110Ω, CL = 50pF, SW = GND (Figure 3),
tLZ RL = 110Ω, CL = 50pF, SW = VCC (Figure 3),
tDISSKEW |tHZ (Y or Z) - tLZ (Z or Y)|
tSHDN (Note 10)
tZH(SHDN) RL = 110Ω, CL = 50pF, SW = GND (Figure 3),
(Notes 10, 11)
Full
Full
Full
Full
Full
Full
-
-
-
-
60
-
2.5 - ns
14 20 ns
12 20 ns
3 - ns
- 600 ns
-
1000
ns
Driver Enable from Shutdown to tZL(SHDN) RL = 110Ω, CL = 50pF, SW = VCC (Figure 3), Full
Output Low
(Notes 10, 11)
-
-
1000
ns
RECEIVER SWITCHING CHARACTERISTICS
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Receiver Input to Output Delay
fMAX VID = ±1.5V
tPLH, tPHL (Figure 5)
Full 40
-
- Mbps
Full -
9 13 ns
Receiver Skew | tPLH - tPHL |
tSKD (Figure 5)
Full -
0 1.5 ns
Prop Delay Part-to-Part Skew
tSKP-P (Figure 5), (Note 13)
Full - - 4 ns
Receiver Enable to Output High
tZH RL = 1kΩ, CL = 15pF, SW = GND (Figure 6), Full
(Note 9)
-
- 12 ns
5 FN6364.0
July 26, 2007
5 Page 
ISL3159E
15 degrees. If the contention persists, the thermal
shutdown/reenable cycle repeats until the fault is cleared.
Receivers stay operational during thermal shutdown.
Low Power Shutdown Mode
This BiCMOS transceiver uses a fraction of the power
required by their bipolar counterparts, but it also includes a
shutdown feature that reduces the already low quiescent ICC
to a 50nA trickle. It enters shutdown whenever the receiver
and driver are simultaneously disabled (RE = VCC and
DE = GND) for a period of at least 600ns. Disabling both the
driver and the receiver for less than 60ns guarantees that
the transceiver will not enter shutdown.
Note that receiver and driver enable times increase when
the transceiver enables from shutdown. Refer to Notes 8, 9,
10, 11 and 12, at the end of the Electrical Specification table
on page 6, for more information.
Typical Performance Curves VCC = 5V, TA = +25°C; Unless Otherwise Specified
110
+25°C
100
+85°C
90
80
+125°C
70
60
50
40
30
20
10
RD = 20Ω
RD = 30Ω
RD = 54Ω
RD = 100Ω
3.5
3.4
RD = 100Ω
3.3
3.2
3.1
3.0
2.9
2.8
2.7
RD = 54Ω
2.6
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
DIFFERENTIAL OUTPUT VOLTAGE (V)
2.5
-40
-15
10 35 60
TEMPERATURE (°C)
85
110 125
FIGURE 8. DRIVER OUTPUT CURRENT vs DIFFERENTIAL
OUTPUT VOLTAGE
FIGURE 9. DRIVER DIFFERENTIAL OUTPUT VOLTAGE vs
TEMPERATURE
200
150
Y OR Z = LOW
100
50
0
-50
-100
Y OR Z = HIGH
-150
-7 -6 -4 -2 0 2 4 6
OUTPUT VOLTAGE (V)
8 10 12
www.DFIaGtaUSRhEee1t04.UDV.ORcoILVmTEARGOEUTPUT CURRENT vs SHORT CIRCUIT
2.55
2.50
2.45
2.40
2.35
2.30-40
DE = VCC, RE = X OR DE = GND, RE = GND
-15 10 35 60 85 110 125
TEMPERATURE (°C)
FIGURE 11. SUPPLY CURRENT vs TEMPERATURE
11 FN6364.0
July 26, 2007
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet ISL3159E.PDF ] | |
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