ISL32433E 반도체 회로 부품 판매점
(ISL32430E - ISL32437E) RS-485/RS-422 Transceivers
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 Intersil |
±40V Fault Protected, 3.3V to 5V, ±15V Common Mode
Range, RS-485/RS-422 Transceivers With Cable Invert
and ±15kV ESD
ISL32430E, ISL32432E, ISL32433E, ISL32435E, ISL32437E
The ISL32430E through ISL32437E are 3.3V to 5V powered, fault
protected, extended common mode range differential transceivers
for balanced communication. The RS-485 bus pins (driver outputs
and receiver inputs) are protected against overvoltages up to
±40V, and against ±15kV ESD strikes. Additionally, these
transceivers operate in environments with common mode
voltages up to ±15V (exceeds the RS-485 requirement), making
this RS-485 family one of the more robust on the market.
Features
• Fault Protected RS-485 Bus Pins . . . . . . . . . . . . . . up to ±40V
• Extended Common Mode Range . . . . . . . . . . . . . . . . . . . ±15V
Larger Than Required for RS-485
• ±15kV HBM ESD Protection on RS-485 Bus Pins
• Wide Supply Range . . . . . . . . . . . . . . . . . . . . . . . . . 3V to 5.5V
Transmitters are RS-485 compliant with VCC ≥ 4.5V and deliver a
1.1V differential output voltage into the RS-485 specified 54Ω
load even with VCC = 3V.
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 (idle) bus. Rx full fail-safe operation
is maintained even when the Rx input polarity is switched (cable
invert function on ISL32437E).
The ISL32437E includes a cable invert function that reverses the
polarity of the Rx and Tx bus pins in case the cable is
misconnected during installation.
• Cable Invert Pin (ISL32437E Only)
Corrects for Reversed Cable Connections While Maintaining Rx
Full Fail-safe Functionality
• 1/4 Unit Load for up to 128 Devices on the Bus
• High Transient Overvoltage Tolerance . . . . . . . . . . . . . . . ±60V
• Full Fail-safe (Open, Short, Terminated) RS-485 Receivers
• Choice of RS-485 Data Rates . . . . . . . . . . . . 250kbps or 1Mbps
• Low Quiescent Supply Current . . . . . . . . . . . . . . . . . . . 2.1mA
Ultra Low Shutdown Supply Current . . . . . . . . . . . . . . . 10µA
• Pb-Free (RoHS Compliant)
See Table 1 on page 2 for key features and configurations by
device number.
Related Literature
Applications
• Utility Meters/Automated Meter Reading Systems
• Air Conditioning Systems
• See FN7921, “ISL32450E, ISL32452E, ISL32453E,
ISL32455E, ISL32457E: ±60V Fault Protected, 3.3V to 5V,
±20V Common Mode Range, RS-485/RS-422 Transceivers
with Cable Invert and ±15kV ESD”
• Security Camera Networks
• Building Lighting and Environmental Control Systems
• Industrial/Process Control Networks
20
A
15
B
10
5
RO
0
VCC = 3V
VID = ±1V
2Mbps
TIME (200ns/DIV)
FIGURE 1. EXCEPTIONAL ISL32433E RX OPERATES AT >1Mbps
EVEN WITH ±15V COMMON MODE VOLTAGE
15
12
0
-7
-15
STANDARD RS-485
TRANSCEIVER
ISL3243XE
FIGURE 2. TRANSCEIVERS DELIVER SUPERIOR COMMON MODE
RANGE vs STANDARD RS-485 DEVICES
March 1, 2012
FN7920.0
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. 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/
ISL32430E, ISL32432E, ISL32433E, ISL32435E, ISL32437E
PART
NUMBER
ISL32430E
ISL32432E
ISL32433E
ISL32435E
ISL32437E
HALF/FULL
DUPLEX
Full
Half
Full
Half
Half
DATA RATE
(Mbps)
0.25
0.25
1
1
0.25
TABLE 1. SUMMARY OF FEATURES
SLEW-RATE
LIMITED?
EN
PINS?
HOT
PLUG
CABLE INVERT
(INV) PIN?
Yes Yes No
No
Yes Yes No
No
Yes Yes No
No
Yes Yes No
No
Yes
Tx Only
No
Yes
QUIESCENT ICC
(mA)
2.1
2.1
2.1
2.1
2.1
LOW POWER
SHDN?
Yes
Yes
Yes
Yes
No
PIN COUNT
10, 14
8
10, 14
8
8
Ordering Information
PART NUMBER
(Notes 1, 2, 3)
PART
MARKING
TEMP. RANGE
(°C)
PACKAGE
(Pb-Free)
PKG.
DWG. #
ISL32430EIBZ
ISL32430 EIBZ
-40 to +85
14 Ld SOIC
M14.15
ISL32430EIUZ
2430E
-40 to +85
10 Ld MSOP
M10.118
ISL32432EIBZ
32432 EIBZ
-40 to +85
8 Ld SOIC
M8.15
ISL32432EIUZ
2432E
-40 to +85
8 Ld MSOP
M8.118
ISL32433EIBZ
ISL32433 EIBZ
-40 to +85
14 Ld SOIC
M14.15
ISL32433EIUZ
2433E
-40 to +85
10 Ld MSOP
M10.118
ISL32435EIBZ
32435 EIBZ
-40 to +85
8 Ld SOIC
M8.15
ISL32435EIUZ
2435E
-40 to +85
8 Ld MSOP
M8.118
ISL32437EIBZ
32437 EIBZ
-40 to +85
8 Ld SOIC
M8.15
ISL32437EIUZ
2437E
-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 page for ISL32430E, ISL32432E, ISL32433E, ISL32435E, ISL32437E. For more
information on MSL please see tech brief TB363.
Pin Configurations
ISL32430E, ISL32433E
(14 LD SOIC)
TOP VIEW
ISL32430E, ISL32433E
(10 LD MSOP)
TOP VIEW
NC 1
RO 2
RE 3
DE 4
DI 5
GND 6
GND 7
R
D
14 VCC
13 NC
12 A
11 B
10 Z
9Y
8 NC
RO 1
RE 2
DE 3
DI 4
GND 5
R
D
10 VCC
9A
8B
7Z
6Y
2 FN7920.0
March 1, 2012
Free Datasheet http://www.datasheet4u.com/
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ISL32433E transceiver
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