THVD1406, THVD1426 3.3-V to 5-V RS-485 Transceivers with Auto-direction Control and ±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
Auto-direction control using the data input pin
Half-duplex RS-422/RS-485
Data rates
- THVD1406: 500 kbps
- THVD1426: 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
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: 3µA (typ)
- Quiescent current during operation: 1.7 mA (typ)
Glitch-free power-up, power-down for hot plug-in capability
Open, short, and idle bus fail-safe
1/8 Unit load (Up to 256 bus nodes)