GX33550 Comparable to XR33055 for Industrial Control Networks

Industrial control networks often need to transmit data over long distances, such as between different workshops in large factories or between remote monitoring sites and control centers, generally over kilometer distances to achieve stable data transmission. The transceiver GX33550 supports RS-485 and RS-422 communication protocols, and has good anti-interference and long-distance transmission capabilities, which can ensure reliable communication between industrial field devices.

GX33550 supports high-speed data transmission, its maximum data rate is 1Mbps, for many routine industrial automation application scenarios, such as sensor data acquisition, equipment status monitoring and control command transmission, etc., has been able to meet the real-time requirements, and can quickly and timely transmit a large amount of data from the field equipment to the monitoring system or control center.

The GX33550 is a high-performance RS-485/RS-422 device designed to improve performance in noisy industrial environments and increase fault tolerance for system failures. The analog bus pins provide protection against ESD events up to ±10kV HBM. A common mode operating range of up to -7V to 12V allows for more reliable operation in noisy environments.

The chip receiver includes complete fail-safe circuitry to ensure a logic-high receiver output in the event of an open, shorted, or undriven receiver input.The GX33550 receiver has an input impedance of at least 120k (1/10 unit load), allowing for more than 320 devices on the bus. The driver is protected by short-circuit detection as well as thermal shutdown, allowing high impedance to be maintained during shutdown or power loss.

GX33550 Key Features:

- 3.0V to 5.5V operating range.

- Analog bus pins can withstand ±28V direct short circuits

- Reliable ESD protection

- ±10kV HBM (bus pin)

- ±5kV HBM (non-bus pin)

- Enhanced receiver fail-safe protection for disconnection, short-circuit or termination of all but the free data lines

- Hot-swap protection for DE and RE pins

- Driver short-circuit current limit and thermal shutdown overload protection

- Reduced unit load allows more than 320 devices on the bus

- Half-duplex transceiver in 8-pin SOIC package

- Ambient operating range of -40°C to 105°C