MAX22025FAWA+

MAX22025FAWA+ is a compact, isolated, half-duplex RS-485/RS-422 transceiver with auto direction control. It provides 3.5kVRMS of digital galvanic isolation between the cable side (RS-485/RS-422 driver/ receiver-side) and the UART side of the device. Isolation improves communication by breaking ground loops and reduces noise when there are large differences in ground potential between ports. This device features proprietary auto direction control making this device ideal for applications such as isolated RS-485 ports, where the driver input is used in conjunction with the driver-enable signal to drive the differential bus. It is approved by UL according to UL1577, cUL according to CSA bulletin 5A. It is used in applications such as utility meters, industrial automation equipment, programmable logic controllers, HVAC.

• High-level integration reduces overall solution size
• Fully isolated half-duplex RS-485/RS-422 transceivers
• Integrated protection ensures robust communication
• Withstands 3.5KVRMS isolation voltage for 60seconds (VISO)
• High RXD in driver enabled state, 0.5Mbps driver speed
• Maximum working isolation voltage is 445VRMS typical at (TA = +25°C)
• Enables flexible system design, 0.5Mbps maximum data rate with slew-rate limited driver
• Auto direction eliminates the need for DE and (active-low) RE control signals
• Supply voltage range from (VDDA) 1.71V to 5.5V, supply current (IDDA) is 0.39mA typical
• Operating temperature range from -40°C to +85°C, 8 wide SOIC package

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