MAX3045BCWE+T

Overview

The MAX3045BCWE+T is a quad RS-485/RS-422 transmitter from the MAX3040–MAX3045 family, designed for digital data transmission over twisted-pair balanced lines. It operates on a single +5V supply (4.75V to 5.25V) and supports data rates up to 20Mbps. The device features ±10kV Human Body Model ESD protection and ±4kV IEC 1000-4-4 Electrical Fast Transient immunity. It includes hot-swap capability to prevent false transitions during power-up or insertion. Operating temperature range is 0°C to +70°C. It is housed in a 16-pin Wide SO package.

Feature Summary

• Hot-swap capability prevents erroneous data transfer during board insertion or power-up sequences.
• Robust electrostatic discharge protection rated at ±10kV via Human Body Model.
• High immunity to electrical fast transient bursts per IEC 1000-4-4 standards.
• Low-power shutdown mode with minimal current consumption.

Applications

• Telecommunications equipment
• Industrial motor control systems
• Transmitter applications requiring ESD sensitivity
• Hand-held industrial equipment
• Industrial PLCs

Procurement Notes

Verify the specific suffix 'C' indicates the commercial temperature range of 0°C to +70°C. Confirm the 'WE' suffix corresponds to the 16-pin Wide SOIC package. Ensure the '+T' designation matches the required reel packaging format for surface-mount assembly processes.

Selection Notes

Select this component when high-speed data rates up to 20Mbps are required alongside robust ESD protection. It serves as a pin-compatible upgrade to industry-standard parts like the SN75174. Verify that the system environment does not exceed the commercial temperature limits defined by the 'C' suffix.

Part Context

This part belongs to the MAX3040–MAX3045 family of 5V quad transmitters. The MAX3045B variant specifically targets higher data rates compared to the slew-rate limited MAX3040/MAX3041 series. It is designed to pair optimally with MAX3093E or MAX3095 receivers.

Replacement Considerations

Pin-compatible replacements include the SN75174 and DS26LS31C. Other family members such as the MAX3042B offer similar performance characteristics within the same interface category.