THVD1424 Series
RS-485 transceiver with slew-rate control, integrated switchable termination and duplex switching
Manufacturer: Texas Instruments
Catalog
RS-485 transceiver with slew-rate control, integrated switchable termination and duplex switching
Key Features
• Meets or exceeds the requirements of the TIA/EIA-485A standard3-V to 5.5-V bus supply voltage1.65 V to 5.5 V supply for logic signalsDifferential output exceeds 2.1 V for PROFIBUS compatibility with 5-V supplyPin configurable Half-duplex and full-duplexPin controlled on-chip 120 Ω termination resistor on bus pinsMaximum Data rate configurableSLR = High: 500 kbpsSLR = Low or floating: 20 MbpsBus I/O protection±16-kV HBM ESD±8-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)Extended industrial temperature range: -40°C to 125°CLow power consumptionShutdown supply current < 5 µAQuiescent current during operation < 3 mAGlitch-free power-up/power-down for hot plug-in capabilityOpen, short, and idle bus failsafeSmall, space-saving 16-VQFN (3 mm x 3 mm) packageMeets or exceeds the requirements of the TIA/EIA-485A standard3-V to 5.5-V bus supply voltage1.65 V to 5.5 V supply for logic signalsDifferential output exceeds 2.1 V for PROFIBUS compatibility with 5-V supplyPin configurable Half-duplex and full-duplexPin controlled on-chip 120 Ω termination resistor on bus pinsMaximum Data rate configurableSLR = High: 500 kbpsSLR = Low or floating: 20 MbpsBus I/O protection±16-kV HBM ESD±8-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)Extended industrial temperature range: -40°C to 125°CLow power consumptionShutdown supply current < 5 µAQuiescent current during operation < 3 mAGlitch-free power-up/power-down for hot plug-in capabilityOpen, short, and idle bus failsafeSmall, space-saving 16-VQFN (3 mm x 3 mm) package
Description
AI
The THVD1424 is a flexible RS-485 transceiver for industrial applications. The device has features such as on-chip 120-Ω termination resistor, slew rate control and interchangeability between half and full duplex mode. All the features are pin-controlled. This enables the device to be used at any node location (end nodes or middle nodes) in any network, two-wire (half duplex) or 4-wire (full duplex), slow or fast. End-equipment designers can now design a common printed circuit board (PCB) and configure it via software for various application needs. This can save considerable design and qualification time for the customers.
The bus pins are immune to high levels of IEC Contact Discharge ESD events, eliminating the need for additional system level protection components. The device operates from 3 to 5.5-V bus supply, while the logic supply voltage range is 1.65 V to 5.5 V. The wide common-mode voltage range and low input leakage on bus pins makes the devices suitable for multi-point applications over long cable runs.
The device is available in a space-saving, thermally efficient 16-pin VQFN package. The device is characterized for ambient temperatures from –40°C to 125°C.
The THVD1424 is a flexible RS-485 transceiver for industrial applications. The device has features such as on-chip 120-Ω termination resistor, slew rate control and interchangeability between half and full duplex mode. All the features are pin-controlled. This enables the device to be used at any node location (end nodes or middle nodes) in any network, two-wire (half duplex) or 4-wire (full duplex), slow or fast. End-equipment designers can now design a common printed circuit board (PCB) and configure it via software for various application needs. This can save considerable design and qualification time for the customers.
The bus pins are immune to high levels of IEC Contact Discharge ESD events, eliminating the need for additional system level protection components. The device operates from 3 to 5.5-V bus supply, while the logic supply voltage range is 1.65 V to 5.5 V. The wide common-mode voltage range and low input leakage on bus pins makes the devices suitable for multi-point applications over long cable runs.
The device is available in a space-saving, thermally efficient 16-pin VQFN package. The device is characterized for ambient temperatures from –40°C to 125°C.
