Overview
The SN65HVD1786D is a robust RS-485 transceiver manufactured by Texas Instruments. Designed for extended common-mode range and fault protection, this component is ideal for industrial and communication applications. Its key features include high reliability, low power consumption, and protection against overvoltage and ESD events, making it a competitive choice for harsh environments.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Series | SN65HVD17xx | - | - |
| Brand | Texas Instruments | - | - |
| Supply Voltage | 10.6 | V | - |
| Supply Current | 3.2 | A | - |
| Frequency | 350 | Hz | - |
| Package | 8-SOIC | - | - |
| Common-Mode Voltage Range | -20 to 25 | V | Exceeds TIA/EIA 485 requirements |
| ESD Protection | ±16kV | - | JEDEC Human Body Model (HBM) |
| Operating Temperature | -40 to 105 | °C | - |
Key Features
- Extended common-mode voltage range (-20V to 25V).
- Bus pin fault protection up to ±70V.
- Low standby current of 1µA (typical).
- Supports up to 256 nodes with reduced unit load.
- Failsafe receiver for open, shorted, and idle bus conditions.
Applications
The SN65HVD1786D is widely used in RS-485 and RS-422 communication networks. Its robust design makes it suitable for industrial automation, security systems, and long-distance data transmission applications. It is particularly effective in environments prone to overvoltage faults, such as direct shorts, mis-wiring, and connector failures.
Q & A
1. What is the operating voltage range of SN65HVD1786D?
The operating voltage range is 10.6V.
2. Does SN65HVD1786D support ESD protection?
Yes, it provides ±16kV ESD protection according to JEDEC HBM standards.
3. What is the common-mode voltage range?
The common-mode voltage range is -20V to 25V.
4. What is the typical standby current?
The typical standby current is 1µA.
5. What package does SN65HVD1786D come in?
It is available in an 8-SOIC package.
6. Can SN65HVD1786D handle overvoltage faults?
Yes, it is designed to withstand overvoltage faults up to ±70V.
7. What is the maximum number of nodes supported?
It supports up to 256 nodes with a reduced unit load.
8. Is SN65HVD1786D suitable for industrial applications?
Yes, its robust design makes it ideal for industrial environments.
9. What is the operating temperature range?
The operating temperature range is -40°C to 105°C.
10. Does SN65HVD1786D support failsafe receiver operation?
Yes, it includes a failsafe receiver for open, shorted, and idle bus conditions.
