Catalog
3.3-V to 5-V RS-485 transceiver with surge protection
Key Features
• Meets or Exceeds the Requirements of the TIA/EIA-485A Standard3 V to 5.5 V Supply VoltageBus I/O Protection± 16 kV HBM ESD± 8 kV IEC 61000-4-2 Contact Discharge± 30 kV IEC 61000-4-2 Air-Gap Discharge± 4 kV IEC 61000-4-4 Electrical Fast Transient± 2.5 kV IEC 61000-4-5 1.2/50-µs SurgeAvailable in Two Speed GradesTHVD1419: 250 kbpsTHVD1429: 20 MbpsExtended AmbientTemperature Range: -40°C to 125°CExtended OperationalCommon-Mode Range: ± 12 VReceiver Hysteresis for Noise Rejection: 30 mVLow Power ConsumptionStandby Supply Current: < 2 µACurrent During Operation: < 3 mAGlitch-Free Power-Up/Down for Hot Plug-in CapabilityOpen, Short, and Idle Bus Failsafe1/8 Unit Load (Up to 256 Bus Nodes)Industry Standard 8-Pin SOICfor Drop-in CompatibilityMeets or Exceeds the Requirements of the TIA/EIA-485A Standard3 V to 5.5 V Supply VoltageBus I/O Protection± 16 kV HBM ESD± 8 kV IEC 61000-4-2 Contact Discharge± 30 kV IEC 61000-4-2 Air-Gap Discharge± 4 kV IEC 61000-4-4 Electrical Fast Transient± 2.5 kV IEC 61000-4-5 1.2/50-µs SurgeAvailable in Two Speed GradesTHVD1419: 250 kbpsTHVD1429: 20 MbpsExtended AmbientTemperature Range: -40°C to 125°CExtended OperationalCommon-Mode Range: ± 12 VReceiver Hysteresis for Noise Rejection: 30 mVLow Power ConsumptionStandby Supply Current: < 2 µACurrent During Operation: < 3 mAGlitch-Free Power-Up/Down for Hot Plug-in CapabilityOpen, Short, and Idle Bus Failsafe1/8 Unit Load (Up to 256 Bus Nodes)Industry Standard 8-Pin SOICfor Drop-in Compatibility
Description
AI
THVD1419 and THVD1429 are half-duplex RS-485 transceivers with integrated surge protection. Surge protection is achieved by integrating transient voltage suppressor (TVS) diodes in the standard 8-pin SOIC (D) package. This feature provides a substantial increase in reliability for better immunity to noise transients coupled to the data cable, eliminating the need for external protection components.
Each of these devices operates from a single 3.3 V or 5 V supply. The devices in this family feature a wide common-mode voltage range which makes them suitable for multi-point applications over long cable runs.
The THVD1419 and THVD1429 devices are available in the industry standard SOIC package for easy drop-in without any PCB changes. These devices are characterized over ambient free-air temperatures from –40°C to 125°C.
THVD1419 and THVD1429 are half-duplex RS-485 transceivers with integrated surge protection. Surge protection is achieved by integrating transient voltage suppressor (TVS) diodes in the standard 8-pin SOIC (D) package. This feature provides a substantial increase in reliability for better immunity to noise transients coupled to the data cable, eliminating the need for external protection components.
Each of these devices operates from a single 3.3 V or 5 V supply. The devices in this family feature a wide common-mode voltage range which makes them suitable for multi-point applications over long cable runs.
The THVD1419 and THVD1429 devices are available in the industry standard SOIC package for easy drop-in without any PCB changes. These devices are characterized over ambient free-air temperatures from –40°C to 125°C.
