1 Features

1. Meets or Exceeds the Requirements of the

TIA/EIA-485A Standard

. 3 V to 5.5 V Supply Voltage

. Differential Output Exceeds 2.1 V for PROFIBUS

Compatibility with 5-V Supply

. Bus I/O ESD Protection

. ±30 kV HBM

. ±18 kV IEC 61000-4-2 Contact Discharge

. ±25 kV IEC 61000-4-2 Air-Gap Discharge

. ±4 kV IEC 61000-4-4 Fast Transient Burst

. Extended Operational Common-mode

Range: ±15 V

. Low EMI 500 kbps and 50 Mbps Data Rates

. Large Receiver Hysteresis for Noise Rejection

. Low Power Consumption

. Standby Supply Current: < 1 μA

. Current During Operation: < 3 mA

. Extended Ambient Temperature

Range: .40°C to 125°C

. 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)

. Small-Size VSON and VSSOP Packages Save

Board Space or SOIC for Drop-in Compatibility

2 Applications

. Motor Drives

. Factory Automation & Control

. Grid Infrastructure

. Building Automation

. HVAC Systems

. Video Surveillance

. Process Analytics

. Wireless Infrastructure

3 Description

THVD14xx is a family of noise-immune RS-485/RS-

422 transceivers designed to operate in rugged

industrial environments. The bus pins of these

devices are robust to high levels of IEC electrical fast

transients (EFT) and IEC electrostatic discharge

(ESD) events, eliminating the need for additional

system level protection components.

Each of these devices operates from a single supply

between 3 V and 5.5 V. The devices in this family

feature an extended common-mode voltage range

which makes them suitable for multi-point

applications over long cable runs.

THVD14xx family of devices is available in small

VSON and VSSOP packages for space constrained

applications. These devices are characterized over

ambient free-air temperatures from .40°C to 125°C.