TPT480L1-SO1R

TPT480 and TPT482 are ESD-protected devices compliant with IEC61000, supporting ±12kV IEC contact discharge and ±15kV IEC air discharge. These 3.0V to 5.5V transceivers comply with RS-485 and RS-422 full-duplex communication standards. The transmitters in this series deliver excellent differential output voltage under the 54Ω load required by RS-485. The devices feature ultra-low bus current, presenting a true 1/8 unit load on the RS-485 bus. This allows up to 256 transceivers to be connected on a single network without repeaters. The receiver inputs feature a "fail-safe" design, ensuring a logic-high output when the receiver inputs are open, shorted, or connected to a terminated but undriven bus. TPT480 and TPT482 are designed for full-duplex RS-485 applications, available in SOP8, DFN3X3-8, MSOP10, and SOP14 packages, with an operating temperature range of -40°C to 125°C.

Applications

• Industrial Control
• Power Grid Infrastructure
• Video Surveillance
• Communication Infrastructure

Key features

• Compliant with full-duplex EIA-485 standard
• Hot-plug circuit — Tx and Rx outputs remain tri-state during power-up/power-down
• Supply voltage: 3.0V ~ 5.5V
• Input common-mode range: -7V ~ +12V
• Data rate: 32Mbps
• Up to 256 nodes per bus (1/8 unit load)
• Fully fail-safe receiver (open, short, terminated)
• Bus pin protection:
• ±20 kV HBM ESD
• ±12 kV IEC61000-4-2 contact discharge
• ±15 kV IEC61000-4-2 air discharge
• Operating temperature range: -40℃ to 125℃