LTC2862AHDD-2#PBF

Drivers, Receivers, Transceivers Overview

The LTC2862AHDD-2#PBF is a low-power, half-duplex RS485/RS422 transceiver manufactured by Analog Devices Inc. It operates on a 3V to 5.5V supply and supports data rates up to 250kbps with slew-rate limiting for low EMI. The device features ±60V overvoltage fault protection on interface pins during all modes, including power-down. It provides Level 4 IEC ESD protection and ±40kV HBM ESD ratings on the A and B pins. The component utilizes an 8-lead (3mm × 3mm) Plastic DFN package with an exposed pad connected to GND. It guarantees failsafe receiver operation within an extended common mode range of ±25V.

Drivers, Receivers, Transceivers Feature Summary

• Integrated ±60V overvoltage fault protection on interface pins across all operational states
• Robust electrostatic discharge immunity with Level 4 IEC ESD and ±40kV HBM ratings on bus lines
• Slew-rate limited transmission at 250kbps designed to minimize electromagnetic interference
• Extended common mode input range of ±25V ensuring reliable communication in noisy environments

Drivers, Receivers, Transceivers Applications

• Supervisory Control and Data Acquisition (SCADA) systems
• Industrial control and instrumentation networks
• Automotive and transportation electronics
• Building automation, security systems, and HVAC controls

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'HDD-2' corresponds to the automotive-grade temperature range (-40°C to 125°C) and the 250kbps slew-limited variant. Confirm the '#PBF' designation indicates lead-free packaging compliant with RoHS standards. Ensure the ordering information matches the required package type and thermal characteristics for the target application environment.

Drivers, Receivers, Transceivers Selection Notes

Select this model when high noise immunity and robust fault protection are required for RS485 or RS422 networks. The LTC2862A-2 option is specifically optimized for low EMI applications due to its slew-rate limited driver. Choose the AH grade for automotive or industrial environments requiring operation up to 125°C. Verify that the 250kbps maximum data rate meets the system timing requirements.

Drivers, Receivers, Transceivers Part Context

This component belongs to the LTC2862A family of ruggedized transceivers. It serves as an improved version of the LTC2862, offering enhanced ESD tolerance and receiver noise immunity. The part is pin-compatible with the standard LTC2862 and LT1785 devices, facilitating direct upgrades in existing designs without PCB layout modifications.

Drivers, Receivers, Transceivers Replacement Considerations

Publicly confirmed substitutes include other variants within the LTC2862A family, such as the LTC2862AIDD-2#PBF for commercial temperature ranges, or the LTC2862ACDD-2#PBF for lower temperature specifications. Cross-referencing with the manufacturer's selection guide is recommended to ensure electrical compatibility.