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RS-485/RS-422 Transceivers. ISL32432E Datasheet

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RS-485/RS-422 Transceivers. ISL32432E Datasheet






ISL32432E Transceivers. Datasheet pdf. Equivalent






ISL32432E Transceivers. Datasheet pdf. Equivalent


ISL32432E

Part

ISL32432E

Description

RS-485/RS-422 Transceivers



Feature


DATASHEET ISL32430E, ISL32432E, ISL3243 3E, ISL32435E, ISL32437E ±40V Fault Pr otected, 3.3V to 5V, ±15V Common-Mode Range, RS-485/RS-422 Transceivers With Cable Invert and ±15kV ESD FN7920 Rev .1.00 Feb 15, 2019 The ISL32430E, ISL3 2432E, ISL32433E, ISL32435E, and ISL324 37E are 3.3V to 5V powered, fault prote cted, extended common-mode range differ ential transceivers f.
Manufacture

Renesas

Datasheet
Download ISL32432E Datasheet


Renesas ISL32432E

ISL32432E; or balanced communication. The RS-485 bu s pins, driver outputs and receiver inp uts, are protected against overvoltages up to ±40V and against ±15kV ESD str ikes. Additionally, these transceivers operate in environments with common-mod e voltages up to ±15V (exceeds the RS- 485 requirement), making this RS-485 fa mily one of the most robust on the mark et. The transmitters .


Renesas ISL32432E

are RS-485 compliant with VCC ≥ 4.5V a nd deliver a 1.1V differential output v oltage into the RS-485 specified 54Ω l oad even with VCC = 3V. The receiver (R x) inputs feature a full fail-safe desi gn that ensures a logic high Rx output if the Rx inputs ar .

Part

ISL32432E

Description

RS-485/RS-422 Transceivers



Feature


DATASHEET ISL32430E, ISL32432E, ISL3243 3E, ISL32435E, ISL32437E ±40V Fault Pr otected, 3.3V to 5V, ±15V Common-Mode Range, RS-485/RS-422 Transceivers With Cable Invert and ±15kV ESD FN7920 Rev .1.00 Feb 15, 2019 The ISL32430E, ISL3 2432E, ISL32433E, ISL32435E, and ISL324 37E are 3.3V to 5V powered, fault prote cted, extended common-mode range differ ential transceivers f.
Manufacture

Renesas

Datasheet
Download ISL32432E Datasheet




 ISL32432E
DATASHEET
ISL32430E, ISL32432E, ISL32433E, ISL32435E, ISL32437E
±40V Fault Protected, 3.3V to 5V, ±15V Common-Mode Range, RS-485/RS-422
Transceivers With Cable Invert and ±15kV ESD
FN7920
Rev.1.00
Feb 15, 2019
The ISL32430E, ISL32432E, ISL32433E, ISL32435E, and
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 most robust on the market.
The 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.
The receiver (Rx) inputs feature a full fail-safe design that
ensures a logic high Rx output if the Rx inputs are floating,
shorted, or on a terminated but undriven (idle) bus. The 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 if the cable is
misconnected during installation.
See Table 1 on page 4 for key features and configurations by
device number.
Related Literature
For a full list of related documents, visit our website:
ISL32430E, ISL32432E, ISL32433E, ISL32435E, and
ISL32437E device pages
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
• Cable invert pin corrects for reversed cable connections
while maintaining Rx full fail-safe functionality (ISL32437E
only)
• 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)
Applications
• Utility meters/automated meter reading systems
• Air conditioning systems
• 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
FN7920 Rev.1.00
Feb 15, 2019
Page 1 of 22




 ISL32432E
ISL32430E, ISL32432E, ISL32433E, ISL32435E, ISL32437E
Typical Operating Circuits
+3.3V
14 + 0.1µF
2 RO
3 RE
VCC A 12
R B 11
RT
4 DE
5 DI
D
Z 10
Y9
GND
6, 7
SOIC PINOUT SHOWN
+3.3V
0.1µF +
14
9 Y VCC
10 Z
D DI 5
DE 4
RT 11 B
12 A
RE 3
R RO 2
GND
6, 7
FIGURE 3. ISL32430E, ISL32433E FULL DUPLEX NETWORK
+3.3V
+
8 0.1µF
1 RO
2 RE
VCC
R
B/Z
7
RT
3 DE
A/Y 6
0.1µF +
+3.3V
8
VCC
RT 7 B/Z
6 A/Y
D DI 4
DE 3
RE 2
4 DI D
GND
5
R
GND
5
RO 1
FIGURE 4. ISL32432E, ISL32435E HALF DUPLEX NETWORK
2 INV
1 RO
3 DE
+3.3V
8
VCC
R A/Y
B/Z
+
0.1µF
6 RT
7
+
0.1µF
+3.3V
8
VCC
RT
7 B/Z
R RO 1
6 A/Y
DE 3
4 DI D
GND
5
THE IC ON THE LEFT HAS THE CABLE CONNECTIONS
SWAPPED, SO THE INV PIN IS STRAPPED HIGH TO
INVERT THE RX AND TX POLARITY
GND
5
D DI 4
2
INV
FIGURE 5. ISL32437E HALF DUPLEX NETWORK USING CABLE INVERT FUNCTION
FN7920 Rev.1.00
Feb 15, 2019
Page 2 of 22



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