ISL32430E INTERSIL [Intersil Corporation], ISL32430E Datasheet

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ISL32430E

Manufacturer Part Number
ISL32430E
Description
Manufacturer
INTERSIL [Intersil Corporation]
Datasheet
±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.
Transmitters are RS-485 compliant with V
1.1V differential output voltage into the RS-485 specified 54Ω
load even with V
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.
See Table 1 on page 2 for key features and configurations by
device number.
Related Literature
• See FN7921, “ISL32450E, ISL32452E, ISL32453E,
March 1, 2012
FN7920.0
ISL32455E, ISL32457E: ±60V Fault Protected, 3.3V to 5V,
±20V Common Mode Range, RS-485/RS-422 Transceivers
with Cable Invert and ±15kV ESD”
FIGURE 1. EXCEPTIONAL ISL32433E RX OPERATES AT >1Mbps
20
15
10
5
0
RO
EVEN WITH ±15V COMMON MODE VOLTAGE
B
A
CC
= 3V.
TIME (200ns/DIV)
1
CC
≥ 4.5V and deliver a
VID = ±1V
2Mbps
V
CC
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
= 3V
1-888-INTERSIL or 1-888-468-3774
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
Features
• Fault Protected RS-485 Bus Pins . . . . . . . . . . . . . . up to ±40V
• Extended Common Mode Range . . . . . . . . . . . . . . . . . . . ±15V
• ±15kV HBM ESD Protection on RS-485 Bus Pins
• Wide Supply Range . . . . . . . . . . . . . . . . . . . . . . . . . 3V to 5.5V
• Cable Invert Pin (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
• 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
Larger Than Required for RS-485
Corrects for Reversed Cable Connections While Maintaining Rx
Full Fail-safe Functionality
Ultra Low Shutdown Supply Current . . . . . . . . . . . . . . . 10µA
FIGURE 2. TRANSCEIVERS DELIVER SUPERIOR COMMON MODE
-15
15
12
-7
0
All other trademarks mentioned are the property of their respective owners.
STANDARD RS-485
TRANSCEIVER
RANGE vs STANDARD RS-485 DEVICES
|
Copyright Intersil Americas Inc. 2012. All Rights Reserved
ISL3243XE

Related parts for ISL32430E

ISL32430E Summary of contents

Page 1

... Range, RS-485/RS-422 Transceivers With Cable Invert and ±15kV ESD ISL32430E, ISL32432E, ISL32433E, ISL32435E, ISL32437E The ISL32430E through ISL32437E are 3. 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 ± ...

Page 2

... 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. ...

Page 3

... ISL32430E, ISL32432E, ISL32433E, ISL32435E, ISL32437E Pin Configurations (Continued) ISL32432E, ISL32435E (8 LD SOIC MSOP) TOP VIEW Truth Tables TRANSMITTING INPUTS INV (Note NOTES: 4. Parts without the INV pin follow the rows with INV = “ ...

Page 4

... ISL32430E, ISL32432E, ISL32433E, ISL32435E, ISL32437E Pin Descriptions (Continued) PIN NUMBER ISL32430E, ISL32430E, PIN ISL32433E, ISL32433E, ISL32432E, NAME 14 LD SOIC 10 LD MSOP ISL32435E ISL32437E B/Z N INV N/A N/A N N/A N ±40V Fault Protected and ±15kV ESD protected RS-485/RS-422 I/O pin. For parts without the cable invert function - or if INV is low - B/Z is the inverting receiver input and inverting driver output ...

Page 5

... ISL32437E HALF DUPLEX NETWORK USING CABLE INVERT FUNCTION +3. INV A/Y B GND 5 5 ISL32430E, ISL32433E FULL DUPLEX NETWORK + 0.1µ SOIC PINOUT SHOWN ISL32432E, ISL32435E HALF DUPLEX NETWORK + 0.1µ 0.1µ THE IC ON THE LEFT HAS THE CABLE CONNECTIONS ...

Page 6

... ISL32430E, ISL32432E, ISL32433E, ISL32435E, ISL32437E Absolute Maximum Ratings V to Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V CC Input Voltages DI, DE, RE, INV -0. Input/Output Voltages A/Y, B/ ±50V A/Y, B/ (Transient Pulse Through 100Ω, Note ±60V RO -0. Short Circuit Duration Indefinite ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see Specification Table Latch-up (per JESD78, Level 2, Class +125° ...

Page 7

... No-Load Supply Current (Note Shutdown Supply Current (Note 18) I SHDN ESD PERFORMANCE All Pins RS-485 Pins ( A/Y, B/Z) DRIVER SWITCHING CHARACTERISTICS (250kbps Versions; ISL32430E, ISL32432E, ISL32437E) Driver Differential Output Delay t PLH, Driver Differential Output Skew t SKEW Driver Differential Rise or Fall Time t R ...

Page 8

... HZ Time to Shutdown t SHDN Driver Enable from Shutdown to t ZH(SHDN) Output High Driver Enable from Shutdown to t ZL(SHDN) Output Low RECEIVER SWITCHING CHARACTERISTICS (250kbps Versions; ISL32430E, ISL32432E, ISL32437E) Maximum Data Rate f MAX Receiver Input to Output Delay PLH Receiver Skew | PLH ...

Page 9

... ISL32430E, ISL32432E, ISL32433E, ISL32435E, ISL32437E Electrical Specifications Test Conditions: V case 3.3V +25°C (Note 8). Boldface limits apply over the operating temperature range, -40°C to +85° PARAMETER SYMBOL Receiver Skew | PLH PHL SKD Receiver Enable to Output Low t ZL Receiver Enable to Output High ...

Page 10

... ISL32430E, ISL32432E, ISL32433E, ISL32435E, ISL32437E Test Circuits and Waveforms SIGNAL GENERATOR FIGURE 4A. TEST CIRCUIT FIGURE 4. DRIVER PROPAGATION DELAY AND DIFFERENTIAL TRANSITION TIMES SIGNAL Y GENERATOR PARAMETER OUTPUT Y/Z 0 (Note 11 Y/Z 0 (Note 11) ...

Page 11

... ISL32430E, ISL32432E, ISL32433E, ISL32435E, ISL32437E Test Circuits and Waveforms SIGNAL SIGNAL GENERATOR GENERATOR +1.5V FIGURE 7A. TEST CIRCUIT SIGNAL GENERATOR PARAMETER (Note 12 (Note 12 (Note 15) 0 ZH(SHDN) t (Note 15) 0 ZL(SHDN) FIGURE 8A. TEST CIRCUIT ...

Page 12

... Increases ruggedness The ±40V (referenced to the IC GND) fault protection on the RS-485 pins, makes these transceivers some of the most rugged on the market. This level of protection makes the ISL32430E, ISL32432E, ISL32433E, ISL32435E, ISL32437E perfect for applications where power (e.g., 24V supplies) must be routed in the conduit with the data lines, or for outdoor applications where large transients are likely to occur ...

Page 13

... ISL32430E, ISL32432E, ISL32433E, ISL32435E, ISL32437E IC operates like any standard RS-485 transceiver, and the bus pins have their normal polarity definition of A and Y being noninverting and B and Z being inverting. With the invert pin high, the corresponding bus pins reverse their polarity and Z are now noninverting, and A and Y become inverting. Intersil’ ...

Page 14

... ISL32430E, ISL32432E, ISL32433E, ISL32435E, ISL32437E Typical Performance Curves 20Ω 30Ω +25°C 60 +85°C +25° +85° 3. 0.5 1 1.5 2 2.5 DIFFERENTIAL OUTPUT VOLTAGE (V) FIGURE 9. DRIVER OUTPUT CURRENT vs DIFFERENTIAL OUTPUT VOLTAGE 2 2 2.0 1 1.8 1 3.3V 1 3.3V CC 1.4 -40 -30 -20 -10 ...

Page 15

... 3. 3. -10 A -15 B -20 TIME (1µs/DIV) FIGURE 19. ±15V RECEIVER PERFORMANCE (ISL32430E, ISL32432E, ISL32437E +25°C; Unless Otherwise Specified. (Continued 54Ω 50pF PHL 5 t PLH ...

Page 16

... ISL32430E, ISL32432E, ISL32433E, ISL32435E, ISL32437E Typical Performance Curves A TIME (1µs/DIV) FIGURE 21 3.3V, DRIVER AND RECEIVER WAVEFORMS CC (ISL32430E, ISL32432E, ISL32437E A TIME (1µs/DIV) FIGURE 23 5V, DRIVER AND RECEIVER WAVEFORMS CC (ISL32430E, ISL32432E, ISL32437E) 2 ...

Page 17

... Intersil's product families address power management and analog signal processing functions complete list of Intersil product families. For a complete listing of Applications, Related Documentation and Related Parts, please see the respective device information page on intersil.com: ISL32430E, ISL32432E, ISL32433E, ISL32435E, To report errors or suggestions for this datasheet, please go to FITs are available from our website at http://rel ...

Page 18

... ISL32430E, ISL32432E, ISL32433E, ISL32435E, ISL32437E Package Outline Drawing M8.118 8 LEAD MINI SMALL OUTLINE PLASTIC PACKAGE Rev 4, 7/11 3.0±0. PIN TOP VIEW H 0.25 - 0.36 0. SIDE VIEW 1 (5.80) (4.40) (3.00) (0.65) TYPICAL RECOMMENDED LAND PATTERN 1.10 MAX 4.9±0.15 3.0±0.05 5 0.65 BSC 0.85±010 C SEATING PLANE 0.10 C 0.10 ± 0.05 NOTES: 1 ...

Page 19

... ISL32430E, ISL32432E, ISL32433E, ISL32435E, ISL32437E Package Outline Drawing M8.15 8 LEAD NARROW BODY SMALL OUTLINE PLASTIC PACKAGE Rev 4, 1/12 INDEX AREA TOP VIEW 5.00 (0.197) 4.80 (0.189) 1.27 (0.050) 0.51(0.020) 0.33(0.013) SIDE VIEW “A 19 DETAIL "A" 6.20 (0.244) 5.80 (0.228) 4.00 (0.157) 3.80 (0.150) 8° 0° 1 SEATING PLANE 1.75 (0.069 ...

Page 20

... ISL32430E, ISL32432E, ISL32433E, ISL32435E, ISL32437E Mini Small Outline Plastic Packages (MSOP -B- INDEX 1 2 0.20 (0.008) AREA TOP VIEW 0.25 (0.010) GAUGE PLANE SEATING PLANE - 0.10 (0.004) b -H- - 0.20 (0.008) SIDE VIEW 0.20 (0.008) NOTES: 1. These package dimensions are within allowable dimensions of JEDEC MO-187BA ...

Page 21

... ISL32430E, ISL32432E, ISL32433E, ISL32435E, ISL32437E Package Outline Drawing M14.15 14 LEAD NARROW BODY SMALL OUTLINE PLASTIC PACKAGE Rev 1, 10/09 14 3 PIN NO.1 ID MARK 5 0.31-0.51 0. A-B D TOP VIEW 1.75 MAX 1.27 SIDE VIEW (1.27) (5.40) TYPICAL RECOMMENDED LAND PATTERN 21 4 0.10 C A 6.0 0. 1.25 MIN ...

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