ISL3280EFHZ-T Intersil, ISL3280EFHZ-T Datasheet

ISL3280EFHZ-T

Manufacturer Part Number

ISL3280EFHZ-T

Description

IC RCVR ESD RS485/422 LP SOT23-5

Manufacturer

Intersil

Type

Receiverr

Datasheet

1.ISL3283EIHZ-T.pdf (15 pages)

Specifications of ISL3280EFHZ-T

Number Of Drivers/receivers

0/1

Protocol

RS422, RS485

Voltage - Supply

3 V ~ 5.5 V

Mounting Type

Surface Mount

Package / Case

SOT-23-5, SC-74A, SOT-25

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Other names

ISL3280EFHZ-TTR

Current page: 1 of 15
Download datasheet (601Kb)

±16.5kV ESD Protected, +125°C, 3.0V to

5.5V, SOT-23/TDFN Packaged, 20Mbps,

Full Fail-safe, Low Power, RS-485/RS-422

Receivers

The Intersil ISL3280E, ISL3281E, ISL3282E, ISL3283E,

ISL3284E, ISL3285E are ±16.5kV IEC61000 ESD

Protected, 3.0V to 5.5V powered, single receivers that meet

both the RS-485 and RS-422 standards for balanced

communication. These receivers have very low bus currents

(+125µA/-100µA), so they present a true “1/8 unit load” to the

RS-485 bus. This allows up to 256 receivers on the network

without violating the RS-485 specification’s 32 unit load

maximum and without using repeaters.

Receiver 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 ISL3280E and ISL3284E feature an always enabled Rx;

the ISL3281E and ISL3285E feature an active high Rx

enable pin, and the ISL3282E and ISL3283E include an

active low enable pin. All versions are offered in Industrial

and Extended Industrial (-40°C to +125°C) temperature

ranges.

A 26% smaller footprint is available with the ISL3282E and

ISL3285E TDFN package. These devices, plus the

ISL3284E, also feature a logic supply pin (V

RE / RE input) to be compatible with another supply voltage

in mixed voltage systems.

For companion single RS-485 transmitters in micro

packages, please see the ISL3293E, ISL3294E, ISL3295E,

ISL3296E, ISL3297E, ISL3298E data sheet.

NUMBER

ISL3280E

ISL3281E

ISL3282E

ISL3283E

ISL3284E

ISL3285E

PART

level of the RO output (and the switching points of the

FUNCTION

1 Rx

DATA RATE

(Mbps)

Data Sheet

# DEVICES

ON BUS

) that sets the

256

TABLE 1. SUMMARY OF FEATURES

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

ACTIVE HIGH

ACTIVE LOW

ENABLE?

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

Features

• IEC61000 ESD Protection on RS-485 Inputs

• Pb-Free (RoHS Compliant)

• Wide Supply Range . . . . . . . . . . . . . . . . . . . 3.0V to 5.5V

• Specified for +125°C Operation

• Logic Supply Pin (V

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

• True 1/8 Unit Load Allows up to 256 Devices on the Bus

• High Data Rates . . . . . . . . . . . . . . . . . . . . . up to 20Mbps

• Low Quiescent Supply Current . . . . . . . . . . 500µA (Max)

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

• Tri-statable Rx Available (Active Low or High EN Input)

• 5V Tolerant Logic Inputs When V

Applications

• Clock Distribution

• High Node Count Systems

• Space Constrained Systems

• Security Camera Networks

• Building Environmental Control/Lighting Systems

• Industrial/Process Control Networks

- Class 3 ESD Level on all Other Pins . . . . . . >5kV HBM

Systems (ISL3282E, ISL3284E, ISL3285E Only)

- Very Low Shutdown Supply Current . . . . . . 20µA (Max)

ISL3280E, ISL3281E, ISL3282E,

October 18, 2007

ISL3283E, ISL3284E, ISL3285E

YES

PIN?

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

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

QUIESCENT

350

) Eases Operation in Mixed Supply

(µA)

LOW POWER

SHUTDOWN?

≤ 5V

YES

FN6543.2

. . .

COUNT

8-TDFN

±16.5kV

5-SOT

6-SOT

LEAD

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ISL3280EFHZ-T Summary of contents

Page 1

... CC QUIESCENT LOW POWER I (µA) SHUTDOWN? CC 350 NO 350 YES 350 YES 350 YES 350 NO 350 YES Intersil (and design registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2007. All Rights Reserved ±16.5kV LEAD COUNT 5-SOT 6-SOT 8-TDFN 6-SOT 6-SOT 8-TDFN ...

Page 2

ISL3280E, ISL3281E, ISL3282E, ISL3283E, ISL3284E, ISL3285E Pinouts ISL3280E (5 LD SOT-23) TOP VIEW GND ISL3282E (8 LD TDFN) TOP VIEW RO 1 GND ISL3284E (6 LD ...

Page 3

... ISL3280E, ISL3281E, ISL3282E, ISL3283E, ISL3284E, ISL3285E Ordering Information PART NUMBER (Notes 1, 2) MARKING (Note 3) ISL3280EFHZ-T 280F ISL3280EIHZ-T 280I ISL3281EFHZ-T 281F ISL3281EIHZ-T 281I ISL3282EFRTZ-T 82F ISL3282EIRTZ-T 82I ISL3283EFHZ-T 283F ISL3283EIHZ-T 283I ISL3284EFHZ-T 284F ISL3284EIHZ-T 284I ISL3285EFRTZ-T 85F ISL3285EIRTZ-T 85I NOTES: 1. 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 4

ISL3280E, ISL3281E, ISL3282E, ISL3283E, ISL3284E, ISL3285E Truth Table RECEIVING INPUTS RE ≥ -0.05V 1, 0 ≤ -0. Inputs Open/Shorted NOTE: *Shutdown Mode, except for ISL3280E, ISL3284E Pin Descriptions PIN ...

Page 5

ISL3280E, ISL3281E, ISL3282E, ISL3283E, ISL3284E, ISL3285E Typical Operating Circuits +3. ISL3280E GND 2 NETWORK WITH V 1.8V +3. ISL3282E A ...

Page 6

... SOT-23 Package (Note TDFN Package (Notes 5, 6 Maximum Junction Temperature (Plastic Package +150°C Maximum Storage Temperature Range . . . . . . . . . .-65°C to +150°C Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below +0.3V) http://www.intersil.com/pbfree/Pb-FreeReflow.asp CC +0.3V) L Operating Conditions Temperature Range F Suffix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +125°C I Suffix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +85°C = 3.0V to 5.5V ...

Page 7

ISL3280E, ISL3281E, ISL3282E, ISL3283E, ISL3284E, ISL3285E Electrical Specifications Test Conditions +25°C (Note 11); Unless Otherwise Specified (Note 7). (Continued) A PARAMETER SYMBOL Receiver Output Low Voltage V OL1 V OL2 V OL3 V OL4 Three-State (high impedance) ...

Page 8

ISL3280E, ISL3281E, ISL3282E, ISL3283E, ISL3284E, ISL3285E Test Circuits and Waveforms GND SIGNAL GENERATORS FIGURE 1A. TEST CIRCUIT FIGURE 1. RECEIVER PROPAGATION DELAY AND DATA RATE GND RO R ...

Page 9

ISL3280E, ISL3281E, ISL3282E, ISL3283E, ISL3284E, ISL3285E All the receivers include a “full fail-safe” function that guarantees a high level receiver output if the receiver inputs are unconnected (floating), shorted together, or connected to a terminated but undriven bus. Fail-safe with ...

Page 10

ISL3280E, ISL3281E, ISL3282E, ISL3283E, ISL3284E, ISL3285E IEC61000-4-2 Testing The IEC61000 test method applies to finished equipment, rather than to an individual IC. Therefore, the pins most likely to suffer an ESD event are those that are exposed to the outside ...

Page 11

ISL3280E, ISL3281E, ISL3282E, ISL3283E, ISL3284E, ISL3285E Typical Performance Curves +25° +125° RECEIVER OUTPUT VOLTAGE (V) FIGURE ...

Page 12

ISL3280E, ISL3281E, ISL3282E, ISL3283E, ISL3284E, ISL3285E Typical Performance Curves 5 PLH PHL 4.5 4 3.5 3.0 2 2. 1.8V L 1.5 1.0 0.5 0 -40 - ...

Page 13

ISL3280E, ISL3281E, ISL3282E, ISL3283E, ISL3284E, ISL3285E Small Outline Transistor Plastic Packages (SOT23- 0.20 (0.008 0.10 (0.004 ...

Page 14

ISL3280E, ISL3281E, ISL3282E, ISL3283E, ISL3284E, ISL3285E Small Outline Transistor Plastic Packages (SOT23-6) 0.20 (0.008 SEATING 0.10 (0.004) C ...

Page 15

... 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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