DATASHEET ISL32490E, ISL32492E, ISL32493E, ISL32495E, ISL32496E, ISL32498E FN7786 Rev.6.00 60V Fault Protected, 5V, RS-485/RS-422 Transceivers with 25V CMR and ESD Protection Feb 8, 2019 The ISL32490E, ISL32492E, ISL32493E, ISL32495E, Features ISL32496E, and ISL32498E are fault protected, 5V powered, Fault protected RS-485 bus pins up to 60V differential transceivers that exceed the RS-485 and RS-422 standards for balanced communication. The RS-485 transceiver Extended CMR 25V (more than twice the range pins (driver outputs and receiver inputs) are fault protected up to required for RS-485) 60V and are protected against 16.5kV ESD strikes without 16.5kV HBM ESD protection on RS-485 bus pins latch-up. Additionally, the extended Common-Mode Range 1/4 unit load for up to 128 devices on the bus (CMR) allows these transceivers to operate in environments with common-mode voltages up to 25V (>2x the RS-485 High transient overvoltage tolerance 80V requirement), making this fault protected RS-485 family one of Full fail-safe (open, short, terminated) RS-485 receivers the most robust on the market. High Rx I for opto-couplers in isolated designs OL The transmitters (Tx) deliver an exceptional 2.5V (typical) Hot plug circuitry Tx and Rx outputs remain three-state differential output voltage into the RS-485 specified 54 load. during power-up/power-down This yields better noise immunity than standard RS-485 ICs, or allows up to six 120 terminations in star network topologies. Choice of RS-485 data rates 250kbps to 15Mbps The receiver (Rx) inputs feature a full fail-safe design that Low quiescent supply current 2.3mA ensures a logic high Rx output if the Rx inputs are floating, Ultra low shutdown supply current 10A shorted, or on a terminated but undriven (idle) bus. The Rx outputs have high drive levels typically, 15mA at V = 1V (for OL Applications opto-coupled, isolated applications). Utility meters/automated meter reading systems Half duplex (Rx inputs and Tx outputs multiplexed together) High node count RS-485 systems and full duplex pinouts are available. See Table 1 on page 3 for PROFIBUS and RS-485 based field bus networks, and factory key features and configurations by device number. automation For fault protected or wide common-mode range RS-485 Security camera networks transceivers with cable invert (polarity reversal) pins, see the ISL32483E datasheet. Building lighting and environmental control systems Industrial/process control networks Related Literature For a full list of related documents, visit our website: - ISL32490E, ISL32492E, ISL32493E, ISL32495E, ISL32496E, and ISL32498E device pages 30 V = 1V 25 ID B 25 A 20 12 15 0 10 -7 5 -12 RO 0 -20 -25 -5 STANDARD RS-485 CLOSEST ISL3249xE TIME (20ns/DIV) TRANSCEIVER COMPETITOR FIGURE 1. EXCEPTIONAL Rx OPERATES AT >15Mbps EVEN WITH A FIGURE 2. ISL3249xE DELIVERS SUPERIOR COMMON-MODE 25V COMMON-MODE VOLTAGE RANGE vs STANDARD RS-485 DEVICES FN7786 Rev.6.00 Page 1 of 22 Feb 8, 2019 VOLTAGE (V) COMMON-MODE RANGEISL32490E, ISL32492E, ISL32493E, ISL32495E, ISL32496E, ISL32498E Typical Operating Circuits +5V +5V + + 0.1F 0.1F 8 8 V CC V CC RO 1 DI 4 R D 2 RE R R B/Z 3 7 T T 7 B/Z DE 6 3 DE A/Y 6 A/Y 2 RE DI 4 1 RO D R GND GND 5 5 FIGURE 3. ISL32492E, ISL32495E, ISL32498E HALF DUPLEX EXAMPLE +5V +5V + + 0.1F 0.1F 13, 14 13, 14 V CC V CC R A 12 T 9 Y 2 DI 5 RO R 11 B 10 Z D 3 RE DE 4 4 DE 3 RE R 10 Z T 11 B 5 DI RO 2 9 R D Y 12 A GND GND 6, 7 6, 7 FIGURE 4. ISL32490E, ISL32493E, ISL32496E FULL DUPLEX EXAMPLE (SOIC PIN NUMBERS SHOWN) Ordering Information PART NUMBER PART TEMP. RANGE TAPE AND REEL PACKAGE PKG. (Notes 2, 3) MARKING (C) (Units) (Note 1) (RoHS COMPLIANT) DWG. ISL32490EIBZ ISL32490 EIBZ -40 to +85 - 14 Ld SOIC M14.15 ISL32490EIBZ-T ISL32490 EIBZ -40 to +85 2.5k 14 Ld SOIC M14.15 ISL32490EIBZ-T7A ISL32490 EIBZ -40 to +85 250 14 Ld SOIC M14.15 ISL32490EIUZ 2490E -40 to +85 - 10 Ld MSOP M10.118 ISL32490EIUZ-T 2490E -40 to +85 2.5k 10 Ld MSOP M10.118 ISL32490EIUZ-T7A 2490E -40 to +85 250 10 Ld MSOP M10.118 ISL32492EIBZ 32492 EIBZ -40 to +85 - 8 Ld SOIC M8.15 ISL32492EIBZ-T 32492 EIBZ -40 to +85 2.5k 8 Ld SOIC M8.15 ISL32492EIBZ-T7A 32492 EIBZ -40 to +85 250 8 Ld SOIC M8.15 ISL32492EIUZ 2492E -40 to +85 - 8 Ld MSOP M8.118 ISL32492EIUZ-T 2492E -40 to +85 2.5k 8 Ld MSOP M8.118 ISL32492EIUZ-T7A 2492E -40 to +85 250 8 Ld MSOP M8.118 ISL32493EIBZ ISL32493 EIBZ -40 to +85 - 14 Ld SOIC M14.15 ISL32493EIBZ-T ISL32493 EIBZ -40 to +85 2.5k 14 Ld SOIC M14.15 ISL32493EIBZ-T7A ISL32493 EIBZ -40 to +85 250 14 Ld SOIC M14.15 FN7786 Rev.6.00 Page 2 of 22 Feb 8, 2019