Overview
The SN65HVD1786DR is a robust RS-485 transceiver designed and manufactured by Texas Instruments. This device is engineered to operate in harsh industrial and automotive environments, providing reliable communication over long distances. It combines a differential driver and a differential receiver, operating from a single power supply, and is suitable for half-duplex (two-wire bus) communication. The SN65HVD1786DR is characterized by its ability to survive overvoltage faults, mis-wiring faults, connector failures, and ESD events, making it an ideal choice for applications requiring secure and efficient data transmission.
Key Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Number of receivers | 1 | Number of transmitters | 1 |
| Duplex | Half | Supply voltage (nom) (V) | 5 |
| Signaling rate (max) (MBits) | 1 | Fault protection (V) | -70 to 70 |
| Common-mode range (V) | -20 to 25 | Number of nodes | 256 |
| Supply current (max) (µA) | 6000 | Operating temperature range (°C) | -40 to 105 |
| ESD Protection | ±16 kV JEDEC HBM | Package Type | SOIC-8 |
Key Features
- Bus-Pin Fault Protection up to ±70 V
- Wide Common-Mode Voltage Range (-20 V to 25 V), exceeding TIA/EIA 485 requirements
- Bus I/O Protection and ±16 kV JEDEC HBM ESD Protection
- Reduced Unit Load for up to 256 Nodes
- Failsafe Receiver for Open-Circuit, Short-Circuit, and Idle-Bus Conditions
- Low Power Consumption with Low Standby Supply Current (1 µA typical) and Quiescent Current (5 mA during operation)
- Glitch-Free Power-Up and Power-Down Operation
Applications
- Reliable communication in automotive industry
- Industrial control systems and networks
- Factory automation and process control systems
- RS-485 and RS-422 networks
- Applications requiring high-speed data transmission over long distances in noisy environments
Q & A
- What is the SN65HVD1786DR used for?
The SN65HVD1786DR is a RS-485 transceiver used for reliable communication in harsh industrial and automotive environments.
- What is the maximum signaling rate of the SN65HVD1786DR?
The maximum signaling rate of the SN65HVD1786DR is 1 Mbps.
- What is the common-mode voltage range of the SN65HVD1786DR?
The common-mode voltage range is -20 V to 25 V.
- How many nodes can the SN65HVD1786DR support?
The SN65HVD1786DR can support up to 256 nodes.
- What kind of ESD protection does the SN65HVD1786DR offer?
The SN65HVD1786DR offers ±16 kV JEDEC HBM ESD protection.
- What is the operating temperature range of the SN65HVD1786DR?
The operating temperature range is -40°C to 105°C.
- What type of package is the SN65HVD1786DR available in?
The SN65HVD1786DR is available in an SOIC-8 package.
- Does the SN65HVD1786DR have failsafe receiver functionality?
- Is the SN65HVD1786DR glitch-free during power-up and power-down?
- What are some typical applications of the SN65HVD1786DR?
Typical applications include automotive industry, industrial control systems, factory automation, and process control systems.
