THVD1400 Series

3.3-V to 5-V, 500-Kbps, RS-485 transceiver in small package option with ±12-kV IEC ESD pro

Catalog

3.3-V to 5-V, 500-Kbps, RS-485 transceiver in small package option with ±12-kV IEC ESD pro

Part	Package / Case	Voltage - Supply [Max]	Voltage - Supply [Min]	Mounting Type	Operating Temperature [Min]	Operating Temperature [Max]	Type	Data Rate	Duplex	Receiver Hysteresis	Protocol	Supplier Device Package	Package / Case [y]	Package / Case [x]
Texas Instruments THVD1400DRLR	SOT-583	5.5 V	3 V	Surface Mount	-40 °C	125 °C	Transceiver	500 kbps	Half	50 mV	RS422 RS485	SOT-583
Texas Instruments THVD1400DR	8-SOIC	5.5 V	3 V	Surface Mount	-40 °C	125 °C	Transceiver	500 kbps	Half	50 mV	RS422 RS485	8-SOIC	3.9 mm	0.154 in

Catalog

3.3-V to 5-V, 500-Kbps, RS-485 transceiver in small package option with ±12-kV IEC ESD pro

Key Features

• Meets or exceeds the requirements of the TIA/EIA-485A standard3-V to 5.5-V Supply voltageHalf-duplex RS-422/RS-485Data ratesTHVD1400: 500 kbpsTHVD1420: 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 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 packageExtended industrial temperature range: -40°C to 125°CLarge receiver hysteresis for noise rejectionLow power consumptionLow standby supply current: < 1 µAQuiescent current during operation: 1.5 mA (typ)Glitch-free power-up/down for hot plug-in capabilityOpen, short, and idle bus failsafe1/8 Unit load (Up to 256 bus nodes)Meets or exceeds the requirements of the TIA/EIA-485A standard3-V to 5.5-V Supply voltageHalf-duplex RS-422/RS-485Data ratesTHVD1400: 500 kbpsTHVD1420: 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 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 packageExtended industrial temperature range: -40°C to 125°CLarge receiver hysteresis for noise rejectionLow power consumptionLow standby supply current: < 1 µAQuiescent current during operation: 1.5 mA (typ)Glitch-free power-up/down for hot plug-in capabilityOpen, short, and idle bus failsafe1/8 Unit load (Up to 256 bus nodes)

Description

THVD1400 and THVD1420 are robust half-duplex RS-485 transceivers for industrial applications. The bus pins are immune to high levels of IEC Contact Discharge ESD events, eliminating the need for additional system level protection components. The devices operate from a single 3 to 5.5-V supply. The wide common-mode voltage range and low input leakage on bus pins make the devices suitable for multi-point applications over long cable runs. THVD1400 and THVD1420 are available in industry standard, 8-pin SOIC package for drop-in compatibility as well as in the industry-leading, small SOT package. The devices are characterized for ambient temperatures from –40°C to 125°C. THVD1400 and THVD1420 are robust half-duplex RS-485 transceivers for industrial applications. The bus pins are immune to high levels of IEC Contact Discharge ESD events, eliminating the need for additional system level protection components. The devices operate from a single 3 to 5.5-V supply. The wide common-mode voltage range and low input leakage on bus pins make the devices suitable for multi-point applications over long cable runs. THVD1400 and THVD1420 are available in industry standard, 8-pin SOIC package for drop-in compatibility as well as in the industry-leading, small SOT package. The devices are characterized for ambient temperatures from –40°C to 125°C.