ISO3086TDWR Description
The ISO3086TDWR is an isolated differential line transceiver that has built-in oscillator outputs that supply the isolation transformer's primary voltage. This full-duplex differential line transceiver for RS-485 and RS-422 applications can be quickly set up to operate in half-duplex mode by connecting pins 11 and 12 to pins 14 and 13, respectively.
These components are perfect for lengthy transmission lines because they break the ground loop to enable a significantly wider common-mode voltage range. Between the bus-line transceiver and the logic-level interface, the device's symmetrical isolation barrier is tested to offer 4242 VPK of isolation for 1 minute per VDE.
Electrical noise transients from many sources can affect any cabled I/O. If these noise transients are large enough and last long enough, they can harm the transceiver and/or nearby sensitive equipment. These isolated devices can greatly improve protection and lower the chance that pricey control circuits will be harmed.
The operating range of the ISO3086T is -40 to 85 degrees Celsius.
ISO3086TDWR Features
Fail-safe Receiver for Bus Open, Short, Idle
Logic Inputs are 5-V Tolerant
Bus-Pin ESD Protection
– 11-kV HBM Between Bus-Pins and GND2
– 6-kV HBM Between Bus-Pins and GND1
– 4242 VPK Basic Insulation per DIN V VDE V 0884-10 and DIN EN 61010-1
– 2500 VRMS Isolation for 1 minute per UL 1577
– CSA Component Acceptance Notice 5A, IEC 60950-1 and IEC 61010-1 Standards
Meets or Exceeds TIA/EIA-485-A
Signaling Rate up to 20 Mbps
1/8 Unit Load – Up to 256 Nodes on a Bus
Thermal Shutdown Protection
Typical Efficiency > 60% (ILOAD = 100 mA)
Low Bus Capacitance 7 pF (Typ)
50-kV/µs Typical Transient Immunity
ISO3086TDWR Applications
Motor/Motion Control
HVAC and Building Automation Networks
Networked Security Stations
Isolated RS-485/RS-422 Interfaces
Factory Automation
