THVD1400, THVD1420 3.3-V to 5-V RS-485 Transceivers in Small Package with ±12-kV IEC ESD Protection

1 Features

Meets or exceeds the requirements of the TIA/EIA-485A standard
3-V to 5.5-V Supply voltage
Half-duplex RS-422/RS-485
Data rates
- THVD1400: 500 kbps
- THVD1420: 12 Mbps
Bus I/O protection
- ±16-kV HBM ESD
- ±12-kV IEC 61000-4-2 Contact discharge
- ±15-kV IEC 61000-4-2 Air gap discharge
- ±4-kV IEC 61000-4-4 Fast transient burst
- ±16-V bus fault protection (absolute max voltage on bus pins)
Small, space-saving 8-pin SOT package option (2.1 mm x 1.2 mm)
- See the layout example for co-layout with standard SOIC-8 package
Extended industrial temperature range: -40°C to 125°C
Large receiver hysteresis for noise rejection
Low power consumption
- Low standby supply current: < 1 µA
- Quiescent current during operation: 1.5 mA (typ)
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)