Transceivers. ISL32492E Datasheet

ISL32492E Datasheet PDF


Part

ISL32492E

Description

(ISL32490E - ISL32498E) RS-485/RS-422 Transceivers

Manufacture

Intersil

Page 22 Pages
Datasheet
Download ISL32492E Datasheet


ISL32492E Datasheet
±60V Fault Protected, 5V, RS-485/RS-422 Transceivers
with ±25V CMR and ESD Protection
ISL32490E, ISL32492E, ISL32493E, ISL32495E, ISL32496E,
ISL32498E
The ISL32490E, ISL32492E, ISL32493E, ISL32495E,
ISL32496E, ISL32498E are fault protected, 5V powered,
differential transceivers that exceed the RS-485 and RS-422
standards for balanced communication. The RS-485 transceiver
pins (driver outputs and receiver inputs) are fault protected up to
±60V and are protected against ±16.5kV ESD strikes without
latch-up. Additionally, the extended common mode range allows
these transceivers to operate in environments with common
mode voltages up to ±25V (>2x the RS-485 requirement),
making this fault protected RS-485 family one of the most
robust on the market.
Transmitters (Tx) deliver an exceptional 2.5V (typical)
differential output voltage into the RS-485 specified 54load.
This yields better noise immunity than standard RS-485 ICs or
allows up to six 120terminations in star network topologies.
Features
• Fault Protected RS-485 Bus Pins . . . . . . . . . . . . . . Up to ±60V
• Extended Common Mode Range . . . . . . . . . . . . . . . . . . . ±25V
More than Twice the Range Required for RS-485
±16.5kV HBM ESD Protection on RS-485 Bus Pins
• 1/4 Unit Load for Up to 128 Devices on the Bus
• High Transient Overvoltage Tolerance . . . . . . . . . . . . . . . ±80V
• Full Fail-Safe (Open, Short, Terminated) RS-485 Receivers
• High Rx IOL for Opto-Couplers in Isolated Designs
• Hot Plug Circuitry; Tx and Rx Outputs Remain Three-State
During Power-Up/Power-Down
• Choice of RS-485 Data Rates. . . . . . . . . 250kbps to 15Mbps
Receiver (Rx) inputs feature a “Full Fail-Safe” design that
ensures a logic high Rx output if Rx inputs are floating, shorted,
or on a terminated but undriven (idle) bus. Rx outputs have high
drive levels; typically, 15mA @ VOL = 1V (for opto-coupled,
isolated applications).
Half duplex (Rx inputs and Tx outputs multiplexed together)
and full duplex pinouts are available. See Table 1 on page 2 for
key features and configurations by device number.
For fault protected or wide common mode range RS-485
transceivers with cable invert (polarity reversal) pins, please
see the ISL32483E data sheet.
• Low Quiescent Supply Current . . . . . . . . . . . . . . . . . . . 2.3mA
• Ultra Low Shutdown Supply Current . . . . . . . . . . . . . . . . 10µA
Applications
• Utility Meters/Automated Meter Reading Systems
• High Node Count RS-485 Systems
• PROFIBUS™ and RS-485 Based Field Bus Networks, and
Factory Automation
• Security Camera Networks
• Building Lighting and Environmental Control Systems
• Industrial/Process Control Networks
30
B
25
A
20
VID = ±1V
15
10
5
RO
0
-5
TIME (20ns/DIV)
FIGURE 1. EXCEPTIONAL Rx OPERATES AT >15Mbps EVEN WITH
A ±25V COMMON MODE VOLTAGE
25
12
0
-7
-12
-20
-25
STANDARD RS-485
TRANSCEIVER
CLOSEST
COMPETITOR
ISL3249xE
FIGURE 2. ISL3249xE DELIVERS SUPERIOR COMMON MODE
RANGE vs STANDARD RS-485 DEVICES
March 16, 2012
FN7786.2
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 |Copyright Intersil Americas Inc. 2011, 2012. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
Free Datasheet http://www.datasheet4u.com/

ISL32492E Datasheet
ISL32490E, ISL32492E, ISL32493E, ISL32495E, ISL32496E, ISL32498E
PART NUMBER
ISL32490E
ISL32492E
ISL32493E
ISL32495E
ISL32496E
ISL32498E
HALF/FULL
DUPLEX
Full
Half
Full
Half
Full
Half
TABLE 1. SUMMARY OF FEATURES
DATA RATE
(Mbps)
SLEW-RATE
LIMITED?
HOT
EN PINS? PLUG?
0.25
Yes Yes Yes
0.25
Yes Yes Yes
1 Yes Yes Yes
1 Yes Yes Yes
15 No Yes Yes
15 No Yes Yes
QUIESCENT ICC
(mA)
2.3
2.3
2.3
2.3
2.3
2.3
LOW POWER
SHDN?
Yes
Yes
Yes
Yes
Yes
Yes
PIN
COUNT
10, 14
8
10, 14
8
10, 14
8
Ordering Information
PART NUMBER
(Notes 1, 2, 3)
PART
MARKING
TEMP. RANGE
(°C)
PACKAGE
(Pb-Free)
PKG.
DWG. #
ISL32490EIBZ
ISL32490 EIBZ
-40 to +85
14 Ld SOIC
M14.15
ISL32490EIUZ
2490E
-40 to +85
10 Ld MSOP
M10.118
ISL32492EIBZ
32492 EIBZ
-40 to +85
8 Ld SOIC
M8.15
ISL32492EIUZ
2492E
-40 to +85
8 Ld MSOP
M8.118
ISL32493EIBZ
ISL32493 EIBZ
-40 to +85
14 Ld SOIC
M14.15
ISL32493EIUZ
2493E
-40 to +85
10 Ld MSOP
M10.118
ISL32495EIBZ
32495 EIBZ
-40 to +85
8 Ld SOIC
M8.15
ISL32495EIUZ
2495E
-40 to +85
8 Ld MSOP
M8.118
ISL32496EIBZ
ISL32496 EIBZ
-40 to +85
14 Ld SOIC
M14.15
ISL32496EIUZ
2496E
-40 to +85
10 Ld MSOP
M10.118
ISL32498EIBZ
32498 EIBZ
-40 to +85
8 Ld SOIC
M8.15
ISL32498EIUZ
2498E
-40 to +85
8 Ld MSOP
M8.118
NOTES:
1. Add “-T*” suffix for tape and reel. Please refer to TB347 for details on reel specifications.
2. 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.
3. For Moisture Sensitivity Level (MSL), please see device information pages for ISL32490E, ISL32492E, ISL32493E, ISL32495E, ISL32496E, ISL32498E.
For more information on MSL please see techbrief TB363.
2 FN7786.2
March 16, 2012
Free Datasheet http://www.datasheet4u.com/


Features Datasheet pdf ±60V Fault Protected, 5V, RS-485/RS-422 Transceivers with ±25V CMR and ESD Pr otection ISL32490E, ISL32492E, ISL32493 E, ISL32495E, ISL32496E, ISL32498E The ISL32490E, ISL32492E, ISL32493E, ISL324 95E, Features ISL32496E, ISL32498E are fault protected, 5V powered, differenti al transceivers that exceed the RS-485 and RS-422 standards for balanced commu nication. The RS-485 transceiver pins ( driver outputs and receiver inputs) are fault protected up to ±60V and are pr otected against ±16.5kV ESD strikes wi thout latch-up. Additionally, the exten ded common mode range allows these tran sceivers to operate in environments wit h common mode voltages up to ±25V (>2x the RS-485 requirement), making this f ault protected RS-485 family one of the most robust on the market. Transmitter s (Tx) deliver an exceptional 2.5V (typ ical) differential output voltage into the RS-485 specified 54Ω load. This y ields better noise immunity than standa rd RS-485 ICs or allows up to six 120Ω terminations in star network to.
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