LTC1385CSW#PBF

Drivers, Receivers, Transceivers Overview

The LTC1385CSW#PBF is a 2-driver/2-receiver EIA/TIA-562 transceiver operating from a single 3.3V supply in an 18-lead plastic SO (Wide) package. It features ultra-low power consumption with quiescent current of 0.2mA to 0.5mA and shutdown current of 0.2mA. The device supports data rates up to 120kbaud, utilizes four 0.1µF capacitors for the charge pump, and provides ESD protection exceeding –10kV. Driver outputs withstand –25V without damage, and the component operates within a commercial temperature range of 0°C to 70°C.

Drivers, Receivers, Transceivers Feature Summary

• Ultra-low power operation with dedicated driver disable and shutdown modes
• EIA/TIA-562 compliance with high noise immunity via receiver hysteresis
• Robust input/output protection against overvoltage and electrostatic discharge

Drivers, Receivers, Transceivers Applications

• Notebook computers
• Palmtop computers

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix matches the required package type and temperature grade. Confirm that the CSW designation corresponds to the 18-lead wide SOIC variant suitable for surface mount assembly. Ensure compatibility with standard PCB footprint dimensions before finalizing procurement orders.

Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring minimal power consumption during standby while maintaining full RS-232 functionality. The integrated charge pump reduces external component count compared to older generations. Verify that the 3.3V logic interface aligns with the system's microcontroller or processor voltage levels.

Drivers, Receivers, Transceivers Part Context

This part belongs to the LTC1385 family of low-power RS-232 transceivers designed specifically for battery-operated portable equipment. It serves as a direct replacement for legacy 5V devices when adapted for 3.3V systems, offering improved efficiency and reduced heat dissipation in compact enclosures.

Drivers, Receivers, Transceivers Replacement Considerations

Pin-compatible alternatives include the LT1180A. Other family members like the LTC1386 offer similar functionality in narrower packages.