LTC486ISW#PBF

Drivers, Receivers, Transceivers Overview

The LTC486ISW#PBF is a low-power quad differential bus driver designed for multipoint data transmission in RS-485 and RS-422 applications. It operates on a single 5V supply (4.75V to 5.25V) and features an extended common-mode range from -7V to +12V, allowing up to ±7V ground difference between devices. The device includes three-state outputs, thermal shutdown protection, and glitch-free power-up/down behavior. Key electrical parameters include a typical supply current of 110µA, propagation delays of 28ns with 5ns skew, and short-circuit currents up to 250mA.

Drivers, Receivers, Transceivers Feature Summary

• CMOS design provides significant power savings while maintaining ruggedness against overload and ESD damage.
• Thermal shutdown circuit prevents excessive power dissipation by forcing outputs into a high impedance state during faults.
• Glitch-free driver outputs permit live insertion or removal of the package without corrupting the bus.
• Pin-compatible with SN75172, DS96172, µA96172, and DS96F172 for easy upgrades.

Drivers, Receivers, Transceivers Applications

• Low power RS-485/RS-422 drivers
• Level translator

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix ISW indicates the Industrial temperature grade (-40°C to 85°C) and SOIC-16 package. Confirm RoHS compliance via the #PBF designation. Check official Analog Devices documentation for lead-free finishing details and tape-and-reel specifications if applicable.

Drivers, Receivers, Transceivers Selection Notes

Select this component when a low-power, quad differential driver is required for RS-485 networks. Ensure the application supports the 5V logic levels and requires the extended common-mode voltage range. Verify that the thermal management strategy accounts for the internal thermal shutdown threshold at 150°C.

Drivers, Receivers, Transceivers Part Context

This part belongs to the LTC486 family of low-power RS-485 drivers. It serves as a direct replacement for legacy bipolar drivers like the SN75172, offering reduced quiescent current. The industrial grade variant ensures reliable operation across a wider temperature spectrum compared to commercial versions.

Drivers, Receivers, Transceivers Replacement Considerations

Public confirmed substitutes include SN75172, DS96172, µA96172, and DS96F172 due to pin compatibility.