LTC1385ISW#PBF

Drivers, Receivers, Transceivers Overview

The LTC1385ISW#PBF is a low-power, dual-driver/dual-receiver EIA/TIA-562 transceiver operating from a single 3.3V supply. It features three operational modes: Normal (200µA), Driver Disable (35mA), and Shutdown (0.2mA). The device supports data rates up to 120kbaud with a 1000pF, 3kW load. It includes an internal charge pump requiring four 0.1µF capacitors. I/O lines withstand –25V without damage, and the unit provides over 10kV ESD protection. Operating temperature range is –40°C to +85°C.

Drivers, Receivers, Transceivers Feature Summary

• Ultra-low power consumption across multiple operational states
• Robust input/output protection against high voltage and electrostatic discharge
• Compact external component requirements for charge pump generation

Drivers, Receivers, Transceivers Applications

• Notebook computers
• Palmtop computers

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix ISW indicates the industrial temperature grade and SOIC package type. Confirm RoHS compliance status through official manufacturer documentation before finalizing procurement specifications.

Drivers, Receivers, Transceivers Selection Notes

Select this component when designing portable systems requiring RS-562 communication with minimal power draw. Ensure the design accommodates the required 0.1µF capacitors for the charge pump circuitry within the available board space constraints.

Drivers, Receivers, Transceivers Part Context

This part belongs to the LTC1385 family of ultra-low power RS-562 transceivers. It serves as a pin-compatible alternative to the LT1180A while offering optimized performance for 3.3V logic systems in battery-operated environments.

Drivers, Receivers, Transceivers Replacement Considerations

The LT1780/LT1781 are listed as related parts but operate at 5V. Verify if the system can tolerate the higher voltage or if a direct 3.3V equivalent is strictly required for the replacement.

Drivers, Receivers, Transceivers FAQ

What is the maximum data rate supported by the LTC1385?

The transceiver operates up to 120kbaud with a 1000pF, 3kW load.

How does the Driver Disable mode affect receiver operation?

In Driver Disable mode, the charge pump turns off and drivers go into three-state, but both receivers remain active.

Can the receiver inputs handle negative voltages?

Yes, receiver inputs can be forced to –25V without damage.