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DATA SHEET
THVD14x9x 3-V to 5.5-V RS-485 Transceivers With 4-kV Surge Protection and 1.8-V VIO Capability
1 Features
- Meets or exceeds the requirements of the TIA/EIA-485A standard
- 3-V to 5.5-V Supply Voltage
- VIO Support from 1.65-V to VCC supply level (THVD1439V, THVD1449V)
- Bus I/O protection
- ± 4-kV IEC 61000-4-5 1.2/50-μs surge
- ± 15-kV IEC 61000-4-2 Contact discharge
- ± 15-kV IEC 61000-4-2 Air-gap discharge
- ± 4-kV IEC 61000-4-4 Electrical fast transient
- ± 15-kV HBM ESD
- ± 15-V DC bus fault
- Available in two speed grades
- THVD1439, THVD1439V: 250 kbps
- THVD1449, THVD1449V: 12 Mbps
- Extended ambient
temperature range: -40°C to 125°C - Extended operational
common-mode range: ± 12 V - Large receiver hysteresis for noise rejection
- Low Power Consumption
- Standby supply current: < 3 µA
- Current during operation: < 5 mA
- Glitch-free power-up/down for hot plug-in capability
- Open, short, and idle bus failsafe
- 1/8 Unit load (up to 256 bus nodes)
- Industry standard 8-pin SOIC
for drop-in compatibility
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