ISL3173E INTERSIL [Intersil Corporation], ISL3173E Datasheet

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ISL3173E

Manufacturer Part Number
ISL3173E
Description
RS-485/RS-422 Transceivers
Manufacturer
INTERSIL [Intersil Corporation]
Datasheet

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±15kV ESD Protected, 3.3V, Full Fail-Safe,
Low Power, High Speed or Slew Rate
Limited, RS-485/RS-422 Transceivers
The Intersil ISL317XE are
3.3V-powered, single transceivers that meet both the
RS-485 and RS-422 standards for balanced communication.
These devices have very low bus currents (+125mA/-100mA),
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. For example, in a remote utility meter reading
system, individual meter readings are routed to a concentrator
via an RS-485 network, so the high allowed node count
minimizes the number of repeaters required.
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.
Hot Plug circuitry ensures that the Tx and Rx outputs remain
in a high impedance state while the power supply stabilizes.
The ISL3170E through ISL3175E utilize slew rate limited
drivers which reduce EMI, and minimize reflections from
improperly terminated transmission lines, or unterminated
stubs in multidrop and multipoint applications. Slew rate limited
versions also include receiver input filtering to enhance noise
immunity in the presence of slow input signals.
The ISL3170E, ISL3171E, ISL3173E, ISL3174E, ISL3176E,
ISL3177E are configured for full duplex (separate Rx input
and Tx output pins) applications. The half duplex versions
multiplex the Rx inputs and Tx outputs to allow transceivers
with output disable functions in 8 Ld packages.
NUMBER
ISL3170E
ISL3171E
ISL3172E
ISL3173E
ISL3174E
ISL3175E
ISL3176E
ISL3177E
ISL3178E
PART
HALF/FULL
DUPLEX
HALF
HALF
HALF
FULL
FULL
FULL
FULL
FULL
FULL
DATA RATE
±
®
15kV IEC61000 ESD Protected,
(Mbps)
0.25
0.25
0.25
1
0.5
0.5
0.5
20
20
20
ISL3170E, ISL3171E, ISL3172E, ISL3173E, ISL3174E,
Data Sheet
SLEW-RATE
LIMITED?
YES
YES
YES
YES
YES
YES
NO
NO
NO
TABLE 1. SUMMARY OF FEATURES
1-888-INTERSIL or 1-888-468-3774
PLUG?
ISL3175E, ISL3176E, ISL3177E, ISL3178E
HOT
YES
YES
YES
YES
YES
YES
NO
NO
NO
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
# DEVICES
ON BUS
256
256
256
256
256
256
256
256
256
Features
• IEC61000 ESD Protection on RS-485 I/O Pins
• Full Fail-safe (Open, Short, Terminated/Floating)
• Hot Plug - Tx and Rx Outputs Remain Three-state During
• True 1/8 Unit Load Allows up to 256 Devices on the Bus
• Single 3.3V Supply
• High Data Rates . . . . . . . . . . . . . . . . . . . . . . up to 20Mbps
• Low Quiescent Supply Current . . . . . . . . . . .800
• -7V to +12V Common Mode Input/Output Voltage Range
• Half and Full Duplex Pinouts
• Three State Rx and Tx Outputs Available
• Current Limiting and Thermal Shutdown for driver
• Tiny MSOP Packages Consume 50% Less Board Space
• Pb-Free (RoHS Compliant)
Applications
• Automated Utility Meter Reading Systems
• High Node Count Systems
• Field Bus Networks
• Security Camera Networks
• Building Environmental Control/ Lighting Systems
• Industrial/Process Control Networks
- Class 3 ESD Level on all Other Pins . . . . . . >7kV HBM
Receivers
Power-up (Only Versions with Output Enable Pins)
- Ultra Low Shutdown Supply Current . . . . . . . . . . .10nA
Overload Protection
All other trademarks mentioned are the property of their respective owners.
ENABLE?
June 10, 2008
RX/TX
|
YES
YES
YES
YES
YES
YES
NO
NO
NO
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2006-2008. All Rights Reserved
QUIESCENT
I
CC
510
510
510
510
510
510
510
510
510
(µA)
SHUTDOWN?
LOW POWER
YES
YES
YES
YES
YES
YES
NO
NO
NO
FN6307.4
. . . . . ±
μ
A (Max)
COUNT
10, 14
10, 14
10, 14
PIN
15kV
8
8
8
8
8
8

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ISL3173E Summary of contents

Page 1

... Slew rate limited versions also include receiver input filtering to enhance noise immunity in the presence of slow input signals. The ISL3170E, ISL3171E, ISL3173E, ISL3174E, ISL3176E, ISL3177E are configured for full duplex (separate Rx input and Tx output pins) applications. The half duplex versions multiplex the Rx inputs and Tx outputs to allow transceivers with output disable functions packages ...

Page 2

... ISL3170E, ISL3171E, ISL3172E, ISL3173E, ISL3174E, ISL3175E, ISL3176E, ISL3177E, ISL3178E Pinouts ISL3172E, ISL3175E, ISL3178E (8 LD MSOP, SOIC) TOP VIEW ISL3170E, ISL3173E, ISL3176E (10 LD MSOP) TOP VIEW GND 5 Ordering Information PART NUMBER (Notes 1, 2) ...

Page 3

... ISL3170E, ISL3171E, ISL3172E, ISL3173E, ISL3174E, ISL3175E, ISL3176E, ISL3177E, ISL3178E Truth Tables TRANSMITTING INPUTS NOTE: *Shutdown Mode (See Note 9), except for ISL3171E, ISL3174E, ISL3177E Pin Descriptions PIN Receiver output: If A-B ≥ -50mV high; If A-B ≤ -200mV low High if A and B are unconnected (floating) or shorted. ...

Page 4

... ISL3170E, ISL3171E, ISL3172E, ISL3173E, ISL3174E, ISL3175E, ISL3176E, ISL3177E, ISL3178E Typical Operating Circuits + GND 5 +3. GND 4 +3. GND ...

Page 5

... ISL3170E, ISL3171E, ISL3172E, ISL3173E, ISL3174E, ISL3175E, ISL3176E, ISL3177E, ISL3178E Absolute Maximum Ratings V to GND Input Voltages DI, DE -0. Input/Output Voltages -8V to +13V -0. Short Circuit Duration Continuous ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . See Specification Table Operating Conditions Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +85°C CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time ...

Page 6

... ISL3170E, ISL3171E, ISL3172E, ISL3173E, ISL3174E, ISL3175E, ISL3176E, ISL3177E, ISL3178E Electrical Specifications Test Conditions: V (Note 4) PARAMETER SYMBOL Receiver Output Low Voltage V Three-State (high impedance) I OZR Receiver Output Current (Note 12) Receiver Input Resistance R Receiver Short-Circuit Current I OSR Thermal Shutdown Threshold T SUPPLY CURRENT No-Load Supply Current (Note 5) ...

Page 7

... ISL3170E, ISL3171E, ISL3172E, ISL3173E, ISL3174E, ISL3175E, ISL3176E, ISL3177E, ISL3178E Electrical Specifications Test Conditions: V (Note 4) PARAMETER SYMBOL Driver Enable to Output High t Driver Enable to Output Low t Driver Disable from Output High t Driver Disable from Output Low t Time to Shutdown t SHDN Driver Enable from Shutdown to ...

Page 8

... ISL3170E, ISL3171E, ISL3172E, ISL3173E, ISL3174E, ISL3175E, ISL3176E, ISL3177E, ISL3178E Electrical Specifications Test Conditions: V (Note 4) PARAMETER SYMBOL Receiver Disable from Output High t Receiver Disable from Output Low t Time to Shutdown t SHDN Receiver Enable from Shutdown to t ZH(SHDN) Output High Receiver Enable from Shutdown to ...

Page 9

... ISL3170E, ISL3171E, ISL3172E, ISL3173E, ISL3174E, ISL3175E, ISL3176E, ISL3177E, ISL3178E Test Circuits and Waveforms SIGNAL GENERATOR FIGURE 2A. TEST CIRCUIT FIGURE 2. DRIVER PROPAGATION DELAY AND DIFFERENTIAL TRANSITION TIMES SIGNAL Y GENERATOR PARAMETER OUTPUT Y/Z 0 (Note 7) ZH ...

Page 10

... ISL3170E, ISL3171E, ISL3172E, ISL3173E, ISL3174E, ISL3175E, ISL3176E, ISL3177E, ISL3178E Test Circuits and Waveforms RE B GND SIGNAL GENERATOR FIGURE 5A. TEST CIRCUIT RE B GND SIGNAL GENERATOR PARAMETER (Note (Note (Note 11) 0 ZH(SHDN) t (Note 11) ...

Page 11

... ISL3170E, ISL3171E, ISL3172E, ISL3173E, ISL3174E, ISL3175E, ISL3176E, ISL3177E, ISL3178E Receivers easily meet the data rates supported by the corresponding driver, and all receiver outputs (except on the ISL3171E, ISL3174E and ISL3177E) are tri-statable via the active low RE input. Driver Features The RS-485/422 driver is a differential output device that delivers at least 1.5V across a 54Ω ...

Page 12

... ISL3170E, ISL3171E, ISL3172E, ISL3173E, ISL3174E, ISL3175E, ISL3176E, ISL3177E, ISL3178E Built-In Driver Overload Protection As stated previously, the RS-485 spec requires that drivers survive worst case bus contentions undamaged. These devices meet this requirement via driver output short circuit current limits, and on-chip thermal shutdown circuitry. ...

Page 13

... ISL3170E, ISL3171E, ISL3172E, ISL3173E, ISL3174E, ISL3175E, ISL3176E, ISL3177E, ISL3178E Typical Performance Curves 1220 1200 1180 1160 1140 1120 t PHL 1100 t PLH 1080 -40 0 -25 25 TEMPERATURE (°C) FIGURE 11. DRIVER DIFFERENTIAL PROPAGATION DELAY vs TEMPERATURE (ISL3170E, ISL3171E, ISL3172E) 370 365 360 355 350 t PHL ...

Page 14

... ISL3170E, ISL3171E, ISL3172E, ISL3173E, ISL3174E, ISL3175E, ISL3176E, ISL3177E, ISL3178E Typical Performance Curves PHL t 25 PLH -40 0 -25 25 TEMPERATURE (°C) FIGURE 15. DRIVER DIFFERENTIAL PROPAGATION DELAY vs TEMPERATURE (ISL3176E, ISL3177E, ISL3178E) R DIFF 3.0 2.5 B/Z 2.0 1.5 A/Y 1.0 0.5 0 TIME (400ns/DIV) FIGURE 17. DRIVER AND RECEIVER WAVEFORMS, ...

Page 15

... ISL3170E, ISL3171E, ISL3172E, ISL3173E, ISL3174E, ISL3175E, ISL3176E, ISL3177E, ISL3178E Typical Performance Curves R DIFF 3.0 2.5 B/Z 2.0 1.5 A/Y 1.0 0.5 0 TIME (200ns/DIV) FIGURE 19. DRIVER AND RECEIVER WAVEFORMS, LOW TO HIGH (ISL3173E, ISL3174E, ISL3175E) R DIFF 3.0 2.5 B/Z 2.0 1.5 A/Y 1.0 0.5 0 TIME (10ns/DIV) FIGURE 21. DRIVER AND RECEIVER WAVEFORMS, LOW TO HIGH (ISL3176E, ISL3177E, ISL3178E) ...

Page 16

... ISL3170E, ISL3171E, ISL3172E, ISL3173E, ISL3174E, ISL3175E, ISL3176E, ISL3177E, ISL3178E 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 (0.008) NOTES: 1. These package dimensions are within allowable dimensions of JEDEC MO-187BA ...

Page 17

... ISL3170E, ISL3171E, ISL3172E, ISL3173E, ISL3174E, ISL3175E, ISL3176E, ISL3177E, ISL3178E 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 “MO Series Symbol List” in Section 2.2 of Publication Number 95 ...

Page 18

... ISL3170E, ISL3171E, ISL3172E, ISL3173E, ISL3174E, ISL3175E, ISL3176E, ISL3177E, ISL3178E 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 (0.008) NOTES: 1. These package dimensions are within allowable dimensions of JEDEC MO-187BA ...

Page 19

... ISL3170E, ISL3171E, ISL3172E, ISL3173E, ISL3174E, ISL3175E, ISL3176E, ISL3177E, ISL3178E 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 “MO Series Symbol List” in Section 2.2 of Publication Number 95 ...

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