TXRX ESD 3.3V RS-485/422 8-MSOP

ISL3179EFUZ-T

Manufacturer Part NumberISL3179EFUZ-T
DescriptionTXRX ESD 3.3V RS-485/422 8-MSOP
ManufacturerIntersil
TypeTransceiver
ISL3179EFUZ-T datasheet
 


Specifications of ISL3179EFUZ-T

Number Of Drivers/receivers1/1ProtocolRS422, RS485
Voltage - Supply3 V ~ 3.6 VMounting TypeSurface Mount
Package / Case8-MSOP, Micro8™, 8-uMAX, 8-uSOP,Lead Free Status / RoHS StatusLead free / RoHS Compliant
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Data Sheet
High ESD Protected, +125°C, 40Mbps,
3.3V, Full Fail-Safe, RS-485/RS-422
Transceivers
Intersil’s ISL3179E and ISL3180E are high ESD Protected
(see Table 1 below), 3.3V powered, single transceivers that
meet both the RS-485 and RS-422 standards for balanced
communication. Each device has low bus currents
(+220µA/-150µA), so it presents a “1/5 unit load” to the
RS-485 bus. This allows up to 160 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 terminated but undriven.
The ISL3180E is configured for full duplex applications. The
ISL3179E half duplex version multiplexes the Rx inputs and
Tx outputs to allow a transceiver with an output disable
function in 8 Ld packages.
Hot Plug circuitry ensures that the Tx and Rx outputs remain
in a high impedance state while the power supply stabilizes.
Ordering Information
PART
TEMP.
NUMBER
PART
RANGE
(Note)
MARKING #
(°C)
ISL3179EFBZ* 3179 EFBZ
-40 to +125 8 Ld SOIC
ISL3179EFUZ* 179FZ
-40 to +125 8 Ld MSOP M8.118
ISL3179EFRZ* 79FZ
-40 to +125 10 Ld DFN
ISL3179EIBZ*
3179 EIBZ
-40 to +85 8 Ld SOIC
ISL3179EIUZ*
179IZ
-40 to +85 8 Ld MSOP M8.118
ISL3179EIRZ*
79IZ
-40 to +85 10 Ld DFN
ISL3180EIBZ*
ISL3180 EIBZ
-40 to +85 14 Ld SOIC M14.15
*Add “-T” suffix for tape and reel. Please refer to TB347 for details on
reel specifications
NOTE: These Intersil Pb-free plastic packaged products employ special
Pb-free material sets; molding compounds/die attach materials and
100% matte tin plate PLUS ANNEAL - e3 termination finish, which is
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.
PART
HALF/FULL
DATA RATE
NUMBER
DUPLEX
(Mbps)
ISL3179E
HALF
40
ISL3180E
FULL
40
1
April 22, 2008
Features
• High ESD Protection on RS-485 I/O Pins
- ISL3179E . . . . . . . . . . . . . . . . . . . . . ±16.5kV IEC61000
- ISL3180E . . . . . . . . . . . . . . . . . . . . . . . . . . ±12kV HBM
- Class 3 HBM ESD Level on all Other Pins . . . . . . . >9kV
• Specified for +125°C Operation
• High Data Rates . . . . . . . . . . . . . . . . . . . . . . up to 40Mbps
• 5V Tolerant Logic Inputs
• 1/5 Unit Load Allows up to 160 Devices on the Bus
• Full Fail-Safe (Open, Shorted, Terminated/Undriven)
Receiver
• Hot Plug - Tx and Rx Outputs Remain Three-State During
Power-Up
• Low Quiescent Current . . . . . . . . . . . . . . . . . . 4mA (Max)
• Low Current Shutdown Mode. . . . . . . . . . . . . . 1µA (Max)
• -7V to +12V Common Mode Input Voltage Range
• Three-State Rx and Tx Outputs
• 16/16.5ns (Max) Tx/Rx Propagation Delays; 1.5ns (Max)
Skew
• Operates from a Single +3.3V Supply (10% Tolerance)
PACKAGE
PKG.
(Pb-Free)
DWG. #
• Current Limiting and Thermal Shutdown for driver
M8.15
Overload Protection
• Pb-Free (RoHS Compliant)
L10.3x3C
Applications
M8.15
• Motor Controller/Position Encoder Systems
• Factory Automation
L10.3x3C
• Field Bus Networks
• Security Networks
• Building Environmental Control Systems
• Industrial/Process Control Networks
TABLE 1. SUMMARY OF FEATURES
RS-485 PIN
HOT
RX/TX
ESD LEVEL
PLUG?
ENABLE?
16.5kV IEC61000
YES
12kV HBM
YES
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
|
1-888-INTERSIL or 1-888-468-3774
All other trademarks mentioned are the property of their respective owners.
ISL3179E, ISL3180E
FN6365.2
QUIESCENT
LOW POWER
I
(mA)
SHUTDOWN?
CC
YES
2.6
YES
YES
2.6
YES
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2007, 2008. All Rights Reserved
PIN
COUNT
8, 10
14

ISL3179EFUZ-T Summary of contents

  • Page 1

    ... Ordering Information PART TEMP. NUMBER PART RANGE (Note) MARKING # (°C) ISL3179EFBZ* 3179 EFBZ -40 to +125 8 Ld SOIC ISL3179EFUZ* 179FZ -40 to +125 8 Ld MSOP M8.118 ISL3179EFRZ* 79FZ -40 to +125 10 Ld DFN ISL3179EIBZ* 3179 EIBZ - SOIC ISL3179EIUZ* 179IZ - MSOP M8.118 ISL3179EIRZ* ...

  • Page 2

    Pinouts ISL3179E (8 LD SOIC, MSOP) TOP VIEW Truth Table TRANSMITTING INPUTS NOTE: *Shutdown Mode ...

  • Page 3

    Pin Descriptions (Continued) PIN GND Ground connection. ± IEC61000 A/Y 16.5kV ESD Protected RS-485/RS-422 level, non-inverting receiver input and non-inverting driver output. Pin is an input ( pin is an output ( ...

  • Page 4

    ... Ld SOIC Package . . . . . . . . . . . . . . 8 Ld MSOP Package . . . . . . . . . . . . . . 10 Ld DFN Package +0.3V) Maximum Junction Temperature (Plastic Package +150°C CC Maximum Storage Temperature Range . . . . . . . . . .-65°C to +150°C Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below http://www.intersil.com/pbfree/Pb-FreeReflow.asp = 3.0V to 3.6V; Typicals are TEST CONDITIONS R = 100Ω (RS-422) (Figure 1A), (Note 12 54Ω ...

  • Page 5

    Electrical Specifications Test Conditions: V PARAMETER SYMBOL Receiver Output Low Current I OL Three-State (high impedance) I OZR Receiver Output Current Receiver Input Resistance R Receiver Short-Circuit Current I OSR SUPPLY CURRENT No-Load Supply Current (Note Shutdown ...

  • Page 6

    Electrical Specifications Test Conditions: V PARAMETER SYMBOL Receiver Enable to Output Low t ZL Receiver Disable from Output High t HZ Receiver Disable from Output Low t LZ Time to Shutdown t SHDN Receiver Enable from Shutdown to t ZH(SHDN) ...

  • Page 7

    Test Circuits and Waveforms SIGNAL GENERATOR FIGURE 2A. TEST CIRCUIT FIGURE 2. DRIVER PROPAGATION DELAY AND DIFFERENTIAL TRANSITION TIMES SIGNAL Y GENERATOR PARAMETER OUTPUT RE t Y/Z X ...

  • Page 8

    Test Circuits and Waveforms RE B +1. SIGNAL GENERATOR FIGURE 5A. TEST CIRCUIT RE B GND SIGNAL GENERATOR PARAMETER (Note (Note 7) ...

  • Page 9

    Application Information RS-485 and RS-422 are differential (balanced) data transmission standards for use in long haul or noisy environments. RS-422 is a subset of RS-485, so RS-485 transceivers are also RS-422 compliant. RS-422 is a point-to-multipoint (multidrop) standard, which allows ...

  • Page 10

    The RS-485 pins of the ISL3179E survive ±9kV contact discharges, while the ISL3180E’s RS-485 pins withstand ±5kV. Hot Plug Function When a piece of equipment powers up, there is a period of time where the processor or ...

  • Page 11

    Typical Performance Curves 90 80 +25°C +85°C 70 +125° 0.5 1.0 1.5 2.0 DIFFERENTIAL OUTPUT VOLTAGE (V) FIGURE 8. DRIVER OUTPUT CURRENT vs DIFFERENTIAL OUTPUT VOLTAGE 150 LOW ...

  • Page 12

    Typical Performance Curves R DIFF Y TIME (5ns/DIV) FIGURE 14. DRIVER AND RECEIVER WAVEFORMS DI = 40Mbps 5 DRIVER+CABLE DELAY 3.0 1 -1.5 ...

  • Page 13

    Die Characteristics SUBSTRATE AND DFN THERMAL PAD POTENTIAL (POWERED UP): GND TRANSISTOR COUNT: 768 PROCESS: Si Gate BiCMOS 13 ISL3179E, ISL3180E FN6365.2 April 22, 2008 ...

  • Page 14

    Mini Small Outline Plastic Packages (MSOP -B- INDEX 1 2 0.20 (0.008) AREA TOP VIEW 0.25 (0.010) GAUGE PLANE SEATING PLANE - 0.10 (0.004) b -H- - 0.20 (0.008) SIDE VIEW 0.20 ...

  • Page 15

    ... Dimensions D2 and E2 are for the exposed pads which provide improved electrical and thermal performance. 8. Nominal dimensions are provided to assist with PCB Land Pattern Design efforts, see Intersil Technical Brief TB389. 9. COMPLIANT TO JEDEC MO-229-WEED-3 except for dimensions E2 & D2 TERMINAL TIP MILLIMETERS MIN ...

  • Page 16

    Small Outline Plastic Packages (SOIC) N INDEX 0.25(0.010) H AREA E - SEATING PLANE - -C- α 0.10(0.004) 0.25(0.010 NOTES: 1. Symbols are defined in the ...

  • Page 17

    ... 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 ...