3.3-V to 5-V RS-485 transceiver in small package with ±8-kV IEC ESD protection
Product details
Parameters
Package | Pins | Size
Features
- Meets or exceeds the requirements of the TIA/EIA-485A standard
- 3-V to 5.5-V Supply voltage
- Half-duplex RS-422/RS-485
- Data rates
- THVD1400: 500 kbps
- THVD1420: 12 Mbps
- Bus 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)
- Small, space-saving 8-pin SOT package option (2.1 mm x 1.2 mm)
- Extended industrial temperature range: -40°C to 125°C
- Large receiver hysteresis for noise rejection
- Low power consumption
- Low standby supply current: < 1 µA
- Quiescent current during operation: 1.5 mA (typ)
- Glitch-free power-up/down for hot plug-in capability
- Open, short, and idle bus failsafe
- 1/8 Unit load (Up to 256 bus nodes)
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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.
Same functionality and pinout but is not an equivalent to the compared device:
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | THVD1400, THVD1420 3.3-V to 5-V RS-485 Transceivers in Small Package with ±8-kV IEC ESD Protection datasheet | Dec. 28, 2020 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
Features
The EVM lets you quickly, easily and accurately evaluate TI's family of RS-485 products.
Hardware:- RS-485 half-duplex EVM PWB
- Screw-type SMA jacks and Bergstik headers serve as the I/O connections
- Banana jacks serve as the DC power input terminals
Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
SOIC (D) | 8 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
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