ISL32496EIBZ-T

The ISL32496E is 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 54O load. This yields better noise immunity than standard RS-485 ICs or allows up to six 120O terminations in star network topologies. 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 at VOL = 1V (for opto-coupled, isolated applications). Half duplex (Rx inputs and Tx outputs multiplexed together) and full duplex pinouts are available. key features and configurations by device number. For fault protected or wide common mode range RS-485 transceivers with cable invert (polarity reversal) pins.

• 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
• Low quiescent supply current: 2.3mA
• Ultra low shutdown supply current: 10µA