THVD1406 Series
3.3-V to 5-V 500-Kbps half-duplex RS-485 transceiver auto-direction control ±12-kV IEC ESD
Manufacturer: Texas Instruments
Catalog
3.3-V to 5-V 500-Kbps half-duplex RS-485 transceiver auto-direction control ±12-kV IEC ESD
Key Features
• Meets or exceeds the requirements of the TIA/EIA-485A standard3-V to 5.5-V Supply voltageAuto-direction control using the data input pinHalf-duplex RS-422/RS-485Data ratesTHVD1406: 500 kbpsTHVD1426: 12 MbpsBus 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 protectionSmall, 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 packageExtended industrial temperature range: -40°C to 125°CLarge receiver hysteresis for noise rejectionLow power consumptionLow standby supply current: 3µA (typ)Quiescent current during operation: 1.7 mA (typ)Glitch-free power-up, power-down for hot plug-in capabilityOpen, short, and idle bus fail-safe1/8 Unit load (Up to 256 bus nodes)Meets or exceeds the requirements of the TIA/EIA-485A standard3-V to 5.5-V Supply voltageAuto-direction control using the data input pinHalf-duplex RS-422/RS-485Data ratesTHVD1406: 500 kbpsTHVD1426: 12 MbpsBus 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 protectionSmall, 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 packageExtended industrial temperature range: -40°C to 125°CLarge receiver hysteresis for noise rejectionLow power consumptionLow standby supply current: 3µA (typ)Quiescent current during operation: 1.7 mA (typ)Glitch-free power-up, power-down for hot plug-in capabilityOpen, short, and idle bus fail-safe1/8 Unit load (Up to 256 bus nodes)
Description
AI
The THVD14x6 (THVD1406 and THVD1426) devices are robust half-duplex RS-485 transceivers for industrial applications. These devices feature auto-direction control using the data input pin that reduces the reliance on separate pins for driver-enable and the receiver-enable functionality. This reduces the number of isolation channels needed or number of the GPIO pins needed for logic control. The bus pins are immune to high levels of IEC ESD events eliminating need of additional system level protection components.
The devices operate from a single 3-V to 5.5-V supply. The wide common-mode voltage range and low input leakage on bus pins make devices suitable for multi-point applications over long cable runs.
The devices are available in industry standard 8-pin SOIC package for drop-in compatibility. The devices are also available in a small, space-saving SOT package. The devices are characterized for ambient temperatures from –40°C to 125°C.
The THVD14x6 (THVD1406 and THVD1426) devices are robust half-duplex RS-485 transceivers for industrial applications. These devices feature auto-direction control using the data input pin that reduces the reliance on separate pins for driver-enable and the receiver-enable functionality. This reduces the number of isolation channels needed or number of the GPIO pins needed for logic control. The bus pins are immune to high levels of IEC ESD events eliminating need of additional system level protection components.
The devices operate from a single 3-V to 5.5-V supply. The wide common-mode voltage range and low input leakage on bus pins make devices suitable for multi-point applications over long cable runs.
The devices are available in industry standard 8-pin SOIC package for drop-in compatibility. The devices are also available in a small, space-saving SOT package. The devices are characterized for ambient temperatures from –40°C to 125°C.
