Home Interface RS-485 & RS-422 transceivers
Home
Interface
RS-485 & RS-422 transceivers

THVD1400

ACTIVE

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

Order now
Data sheet

THVD1400

ACTIVE
Data sheet Order now

Product details

Number of receivers 1 Number of transmitters 1 Duplex Half Signaling rate (max) (Mbps) 0.5 IEC 61000-4-2 contact (±V) 12000 Fault protection (V) -16 to 16 Common-mode range (V) -7 to 12 Number of nodes 256 Features IEC ESD protection Isolated No Supply current (max) (µA) 3000 Rating Catalog Operating temperature range (°C) -40 to 125
Number of receivers 1 Number of transmitters 1 Duplex Half Signaling rate (max) (Mbps) 0.5 IEC 61000-4-2 contact (±V) 12000 Fault protection (V) -16 to 16 Common-mode range (V) -7 to 12 Number of nodes 256 Features IEC ESD protection Isolated No Supply current (max) (µA) 3000 Rating Catalog Operating temperature range (°C) -40 to 125
SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm) SOT-5X3 (DRL) 8 3.36 mm² (2.1 mm × 1.6 mm)
  • 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
    • ±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 package
  • 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)
  • 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
    • ±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 package
  • 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)

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.
filter Find other RS-485 & RS-422 transceivers
Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Pin-for-pin with same functionality to the compared device.
THVD2410 ACTIVE ±70-V fault-protected 3.3-V to 5-V RS-485 transceiver with IEC ESD +/-70-V bus fault protection and works with +/-25-V common mode voltage range
THVD1410 ACTIVE 3.3-V to 5-V RS-485 transceiver with ±18-kV IEC ESD protection 18-kV IEC 61000-4-2 ESD contact discharge protection
THVD1419 ACTIVE 3.3-V to 5-V RS-485 transceiver with surge protection Integrated 2.5-kV IEC 61000-4-5 surge protection
Same functionality with different pin-out to the compared device.
THVD1400V ACTIVE 3-V to 5.5-V half-duplex RS-485 transceiver with flexible I/O and slew rate control Supports 1.65 V to 5.5 V supply for logic I/O signals
THVD1454 ACTIVE 3-V to 5.5-V half-duplex RS-485 transceiver with integrated 120-Ω switchable termination Supports switchable data rate and internal termination
Similar functionality to the compared device.
THVD1406 ACTIVE 3.3-V to 5-V 500-Kbps half-duplex RS-485 transceiver auto-direction control ±12-kV IEC ESD Supports auto direction function
THVD1424 ACTIVE RS-485 transceiver with slew-rate control, integrated switchable termination and duplex switching Half-duplex, full-duplex switchable, integrated termination, and 1.65-V to 5.5-V flexible IO support

Technical documentation

No results found. Please clear your search and try again.
View all 2
Top documentation Type Title Format options Date
* Data sheet THVD1400, THVD1420 3.3-V to 5-V RS-485 Transceivers in Small Package with ±12-kV IEC ESD Protection datasheet (Rev. B) PDF | HTML Oct 25, 2021
Application note Mitigating UART Receiver Glitches While Switching Modes on RS-485 Transceivers PDF | HTML Dec 11, 2024

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

RS485-HF-DPLX-EVM — RS-485 half-duplex evaluation module

The RS-485 half-duplex evaluation module (EVM) helps designers evaluate device performance, supporting fast development and analysis of data-transmission systems using any of the SN65HVD1x, SN65HVD2x, SN65HVD7x, SN65HVD8x and SN65HVD96 half-duplex transceivers. The EVM board comes without the (...)
User guide: PDF | HTML
Supported products & hardware
In stock
Limit:
??asset.out-of-stock-ti_en_US??
Not available
Simulation model

THVD1400 IBIS Model

SLLM462.ZIP (61 KB) - IBIS model
Supported products & hardware
Reference design

TIDA-010216 — 16s battery pack reference design with low-side MOSFET control for large capacity applications

This reference design is a low standby and ship-mode current consumption and high cell voltage accuracy 16s Lithium-ion (Li-ion) LiFePO4 battery pack. The design monitors each cell voltage, pack current, cell and MOSFET temperature with high accuracy and protects the Li-ion and LiFePO4 battery (...)
Supported products & hardware
Reference design

TIDA-010243 — Three-phase current transformer e-meter reference design with standalone ADC

This reference design implements Class 0.1 three-phase energy measurement using a high-performance, multichannel analog-to-digital converter (ADC), which samples current transformers (CT) at 8kHz to measure the current and voltage of each leg of the AC mains. This reference design achieves high (...)

Supported products & hardware
Reference design

TIDA-010940 — Single-phase shunt e-meter reference design

This reference design implements a single-phase energy meter using standalone multi-channel analog-to-digital converters (ADC) to sample a shunt current sensor. The combination of the shunt sensor and a ultra-low-power Hall-effect sensor (DRV5032) minimizes the effect and enables the detection of (...)

Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
SOIC (D) 8 Ultra Librarian
SOT-5X3 (DRL) 8 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos