ISL3158AEMBZ Intersil, ISL3158AEMBZ Datasheet

ISL3158AEMBZ

Manufacturer Part Number

ISL3158AEMBZ

Description

TXRX ESD 5V RS485/422 8-SOIC

Manufacturer

Intersil

Type

Transceiverr

Datasheet

1.ISL3158AEMBZ.pdf (16 pages)

Specifications of ISL3158AEMBZ

Number Of Drivers/receivers

1/1

Protocol

RS422, RS485

Voltage - Supply

4.5 V ~ 5.5 V

Mounting Type

Surface Mount

Package / Case

8-SOIC (3.9mm Width)

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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±16.5kV ESD (IEC61000-4-2) Protected,

Large Output Swing, 5V, Full Fail-Safe, 1/8

Unit Load, RS-485/RS-422 Transceiver

The ISL3158AE is a BiCMOS, IEC61000 ESD protected, 5V

powered, single transceiver that meets both the RS-485 and

RS-422 standards for balanced communication. Each driver

output and receiver input is protected against ±16.5kV ESD

strikes without latch-up.

The ISL3158AE transmitter delivers 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.

This device has very low bus currents (+125

presents 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 outputs

feature high drive levels - typically 28mA @ V

the design of optocoupled isolated interfaces).

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 short circuit protected.

The ISL3158AE is a half duplex version. It multiplexes the

Rx inputs and Tx outputs to allow transceivers with output

disable functions in an 8 Ld package.

ISL3158AEM

ISL3158AEMW

NUMBER

PART

L DUPLEX

HALF/FUL

Half

DATA RATE

(Mbps)

Data Sheet

SLEW-RATE

LIMITED?

A/-75

= 1V (to ease

TABLE 1. SUMMARY OF FEATURES

A), so it

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

HOT PLUG

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

Yes

# DEVICES

ON BUS

Features

• High Driver V

• IEC61000 ESD Protection on RS-485 I/O Pins . . ±16.5kV

• Full Fail-safe (Open, Short, Terminated and Undriven)

• High Rx I

• Hot Plug Circuitry - Tx and Rx Outputs Remain

• 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 10Mbps

• Low Quiescent Supply Current . . . . . . . . . . . . . . . 600

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

• Half Duplex Pinouts

• Pb-free (RoHS compliant)

• Three-State Rx and Tx Outputs

• Current Limiting for Driver Overload Protection

Applications

• Utility Meters and Automated Meter Reading Systems

• High Node Count Systems

• PROFIBUS® and Field Bus Networks, and Factory

• Security Camera Networks

• Building Lighting and Environmental Control Systems

• Industrial/Process Control Networks

256

- Better Noise Immunity, or Drive Up to 8 Terminations

- Class 3 ESD Level on all Other Pins . . . . . . >7kV HBM

Receivers

Applications

Three-State During Power-up/Power-down

Ultra Low Shutdown Supply Current . . . . . . . . . . . . 70nA

Automation

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

April 3, 2009

ENABLE?

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

Rx/Tx

Yes

to Drive Opto-Couplers for Isolated

. . . . . . . . . . . . . . 2.4V (Min) @ R

QUIESCENT

600

(µA)

SHUTDOWN?

LOW POWER

ISL3158AE

Yes

FN6886.0

COUNT

= 54Ω

N/A

Related parts for ISL3158AEMBZ

ISL3158AEMBZ Summary of contents

Page 1

... Drive Opto-Couplers for Isolated OL Rx/Tx QUIESCENT LOW POWER ENABLE? I (µA) SHUTDOWN? CC Yes 600 Yes Yes 600 Yes Intersil (and design registered trademark of Intersil Americas Inc. Copyright © Intersil Americas Inc. 2009. All Rights Reserved = 54Ω µ PIN COUNT 8 N/A ...

Page 2

... Pinout Ordering Information PART NUMBER (Note) ISL3158AEMBZ* 3158A EMBZ ISL3158AEMW *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) ...

Page 3

Truth Tables TRANSMITTING INPUTS NOTE: *Shutdown Mode (See Note 7). Pin Descriptions PIN Receiver output: If A-B ≥ -50mV high; If A-B ≤ ...

Page 4

Typical Operating Circuit + B/Z A GND 5 4 ISL3158AE ISL3158AE + 0.1µ +5V + 0.1µ ...

Page 5

... Thermal Resistance (Typical, Note SOIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . + 0.3V) CC 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 +0.3V) CC Operating Conditions Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . .-55°C to +125°C = 4.5V to 5.5V; Unless Otherwise Specified. Typicals are ...

Page 6

Electrical Specifications Test Conditions: V (Note 2). Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization and are not production tested. (Continued) PARAMETER SYMBOL Three-State (High Impedance) I OZR Receiver ...

Page 7

Page 8

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 9

Test Circuits and Waveforms SIGNAL GENERATOR FIGURE 5A. TEST CIRCUIT FIGURE 5. RECEIVER PROPAGATION DELAY AND DATA RATE RE B GND SIGNAL GENERATOR PARAMETER ...

Page 10

Application Information RS-485 and RS-422 are differential (balanced) data transmission standards used for 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 only ...

Page 11

ESD Protection All pins on this device includes class 3 (>7kV) Human Body Model (HBM) ESD protection structures, but the RS-485 pins (driver outputs and receiver inputs) incorporate advanced structures allowing them to survive ESD events in excess of ±16.5kV ...

Page 12

Typical Performance Curves 140 130 +25°C 120 +85°C 110 100 15Ω 20Ω DIFFERENTIAL OUTPUT VOLTAGE (V) FIGURE 8. DRIVER OUTPUT ...

Page 13

Typical Performance Curves R DIFF B A/Y 1 TIME (20ns/DIV) FIGURE 14. DRIVER AND RECEIVER WAVEFORMS, (ISL3158AE) 13 ISL3158AE +25°C; Unless Otherwise Specified. (Continued ...

Page 14

Die Characteristics DIE DIMENSIONS INCLUDING 50µM SCRIBE Thickness: 19 mils 1400µm x 1530µm Interface Materials GLASSIVATION Sandwich TEOS and Nitride TOP METALLIZATION Type: Al with 0.5% Cu Thickness: 28kÅ SUBSTRATE N/A BACKSIDE FINISH Silicon/Polysilicon/Oxide Assembly Related Information SUBSTRATE POTENTIAL GND ...

Page 15

Metallization Mask Layout ISL3158AE ISL3158AE VCC FN6886.0 April 3, 2009 ...

Page 16

... 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 ...

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